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Academic literature on the topic 'Iron catalysi'

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Published: 9 March 2023
Last updated: 11 March 2023

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Journal articles on the topic "Iron catalysi"

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Dadashi-Silab, Sajjad, and Krzysztof Matyjaszewski. "Iron Catalysts in Atom Transfer Radical Polymerization." Molecules 25, no. 7 (April 3, 2020): 1648. http://dx.doi.org/10.3390/molecules25071648.

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Catalysts are essential for mediating a controlled polymerization in atom transfer radical polymerization (ATRP). Copper-based catalysts are widely explored in ATRP and are highly efficient, leading to well-controlled polymerization of a variety of functional monomers. In addition to copper, iron-based complexes offer new opportunities in ATRP catalysis to develop environmentally friendly, less toxic, inexpensive, and abundant catalytic systems. Despite the high efficiency of iron catalysts in controlling polymerization of various monomers including methacrylates and styrene, ATRP of acrylate-based monomers by iron catalysts still remains a challenge. In this paper, we review the fundamentals and recent advances of iron-catalyzed ATRP focusing on development of ligands, catalyst design, and techniques used for iron catalysis in ATRP.
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Hsueh, C. L., Y. H. Huang, C. C. Wang, and C. Y. Chen. "Photooxidation of azo dye Reactive Black 5 using a novel supported iron oxide: heterogeneous and homogeneous approach." Water Science and Technology 53, no. 6 (March 1, 2006): 195–201. http://dx.doi.org/10.2166/wst.2006.197.

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Photooxidation of azo dye Reactive Black 5 (RB5) by H2O2 was performed with a novel supported iron oxide in a batch reactor in the range of pH 2.5–6.0. The iron oxide was prepared through a fluidized-bed reactor (FBR) and much cheaper than the Nafion-based catalysts. Experimental results indicate that the iron oxide can significantly accelerate the degradation of RB5 under the irradiation of UVA light (λ=365 nm). An advantage of the catalyst is its long-term stability, which was confirmed through using the catalyst for multiple runs in the degradation of RB5. In addition, this study focused mainly on determining the proportions of homogeneous catalysis and heterogeneous catalysis in the batch reactor. Conclusively, although heterogeneous catalysis contributes primarily to the oxidation of RB5 during pH 4.5-6.0, the homogeneous catalysis is of increasing importance below pH 4.0 because of the Fe ions leaching from the catalyst to solution.
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Xu, Jun Qiang, Fang Guo, Shu Shu Zou, and Xue Jun Quan. "Optimization of the Catalytic Wet Peroxide Oxidation of Phenol over the Fe/NH4Y Catalyst." Materials Science Forum 694 (July 2011): 640–44. http://dx.doi.org/10.4028/www.scientific.net/msf.694.640.

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The heterogeneous NH4Y zeolite-supported iron catalysts were prepared by incipient wetness impregnation. The catalysis oxidation degradation of phenol was carried over the heterogeneous catalyst in the peroxide catalytic oxidation process. Compared with the homogeneous Fenton process, the Fe/ NH4Y-acid catalyst can effectively degrade contaminants with high catalytic activity and easy catalyst separation from the solution. The phenol removal efficiency could reach 96% in the optimum experimental conditions. These process conditions were as follows: iron content is 5%, reaction time was 60 min, reaction temperature was 70 oC, the catalyst dosage was 1g/L, the H2O2 concentration was 1.65g/L.
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Guerrero Fajardo, Carlos Alberto, Yvonne N’Guyen, Claire Courson, and Anne Cécile Roger. "Fe/SiO2 catalysts for the selective oxidation of methane to formaldehyde." Ingeniería e Investigación 26, no. 2 (May 1, 2006): 37–44. http://dx.doi.org/10.15446/ing.investig.v26n2.14735.

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Selective oxidation of methane to formaldehyde was analysed with iron catalysts supported on silica prepared by the sol-gel method, leading to obtaining a large support surface area facilitating high dispersion of iron on silica’s amorphous surface. Seven catalysts were prepared; one of them corresponded to the silica support and another five having an iron load 0.1-0.5% in weight. Catalyst 7 (0.5% Fe in weight) was prepared with neutral pH control and had the most homogeneous characteristics since it did not present isolated iron species, corroborated by SEM and TEM analysis. The highest BET areas were 1,757 and 993 m2.g-1 for 0.5% Fe catalysts, having an average 36% microporosity and 43% mesoporosity. X-ray diffraction confirmed the catalyst’s amorphous structure. Catalytic activity was carried out with catalyser 7 at atmospheric pressure in a quartz reactor using a CH4/O2/N2=7.5/1/4 reaction mixture at 400-750°C temperature range. Reaction products were analysed by gas chromatography with TCD. The heterogeneous catalysts displayed greater methane conversion (but with methanol selectivity) whereas homogenous catalyst 7 gave better results regarding formaldehyde. The highest conversion percentage (8.60% mol) for catalyser 7 was presented at 650°C. Formaldehyde selectivity was 50% mol in the 600-650°C range and maximum yield (0.31g HCHO/Kg catalyst) was found in this range; it was thus considered that 650°C for the reaction was thereby the best operating temperature.
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van Slagmaat, Christian A. M. R., Khi Chhay Chou, Lukas Morick, Darya Hadavi, Burgert Blom, and Stefaan M. A. De Wildeman. "Synthesis and Catalytic Application of Knölker-Type Iron Complexes with a Novel Asymmetric Cyclopentadienone Ligand Design." Catalysts 9, no. 10 (September 22, 2019): 790. http://dx.doi.org/10.3390/catal9100790.

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Asymmetric catalysis is an essential tool in modern chemistry, but increasing environmental concerns demand the development of new catalysts based on cheap, abundant, and less toxic iron. As a result, Knölker-type catalysts have emerged as a promising class of iron catalysts for various chemical transformations, notably the hydrogenation of carbonyls and imines, while asymmetric versions are still under exploration to achieve optimal enantio-selectivities. In this work, we report a novel asymmetric design of a Knölker-type catalyst, in which the C2-rotational symmetric cyclopentadienone ligand possesses chiral substituents on the 2- and 5-positions near the active site. Four examples of the highly modular catalyst design were synthesized via standard organic procedures, and their structures were confirmed with NMR, IR, MS, and polarimetry analysis. Density functional theory (DFT) calculations were conducted to elucidate the spatial conformation of the catalysts, and therewith to rationalize the influence of structural alterations. Transfer- and H2-mediated hydrogenations were successfully established, leading to appreciable enantiomeric excesses (ee) values up to 70%. Amongst all reported Knölker-type catalysts, our catalyst design achieves one of the highest ee values for hydrogenation of acetophenone and related compounds.
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Guo, Fang, Jun Qiang Xu, and Jun Li. "Kinetics Studies for Catalytic Oxidation of Methyl Orange over the Heterogeneous Fe/Beta Catalysts." Advanced Materials Research 807-809 (September 2013): 361–64. http://dx.doi.org/10.4028/www.scientific.net/amr.807-809.361.

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The Fe/Beta catalysts were prepared by conventional incipient wetness impregnation. The catalysis oxidation degradation of methyl orange was carried out in catalyst and H2O2 process. The results indicated that the catalyst and hydrogen peroxide were more benefit to degradation of methyl orange. The reaction condition was optimized. The optimum reaction process was as follow: iron amount of catalyst was 1.25%, the catalyst dosage and H2O2 concentration was 1 mg/L and 1.5 mg/L, and reaction temperature was 70 °C. The apparent activation energy (65 KJ/mol) was obtained according to the arrhenius formula, which was benefit to study the reaction mechanism.
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Shahroudbari, Isa, Yaghoub Sarrafi, and Yahya Zamani. "Study of carbon dioxide hydrogenation to hydrocarbons over iron-based Catalysts: Synergistic effect." Kataliz v promyshlennosti 21, no. 3 (May 17, 2021): 182. http://dx.doi.org/10.18412/1816-0387-2021-3-182.

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The full article will be published in the English version of the journal "Catalysis in Industry" No. 4, 2021.Hydrogenation of CO2 to CO and hydrocarbons is carried out over a wide range of catalysts. Group of VIIIB transition metals have proved high conversion and selectively for CO and methane. Meanwhile, low cost and effective catalysts are preferable in an industrial scale. In this work, the synergistic effect of iron content on the catalytic performance were investigated in carbon dioxide hydrogenation reaction. Incipient wetness impregnation procedure was used for the preparation of four γ-Al2O3 supported iron-based catalysts. BET, XRD, H2-TPR and TEM techniques were employed for the catalyst characterization. The evaluation of catalysts were carried out in a fixed bed reactor at the process conditions of temperature of 300 °C, pressure of 20 atm, H2 to CO2 ratio of 3 and GHSV of 3 nl.h–1·gCat–1. It was found that the promoter addition improves the activity of Fe catalyst for both Fischer – Tropsch synthesis (FTS) and Reverse Water Gas Shift (RWGS) reactions. The results showed that conversion of CO2 was from 15.6 to 35.6 % with major products of methane, C2 to C4, C5+ and CO. It was also found that impact of K and Ce promoters into iron catalyst showed the highest conversion and hydrocarbon yield due to the synergistic effect.
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Vono, Lucas L. R., Camila C. Damasceno, Jivaldo R. Matos, Renato F. Jardim, Richard Landers, Sueli H. Masunaga, and Liane M. Rossi. "Separation technology meets green chemistry: development of magnetically recoverable catalyst supports containing silica, ceria, and titania." Pure and Applied Chemistry 90, no. 1 (January 26, 2018): 133–41. http://dx.doi.org/10.1515/pac-2017-0504.

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AbstractMagnetic separation can be considered a green technology because it is fast, efficient, consumes low energy, and minimizes the use of solvents and the generation of waste. It has been successfully used in laboratory scale to facilitate supported catalysts’ handling, separation, recovery, and recycling. Only few materials are intrisically magnetic, hence the application of magnetic materials as catalyst supports has broaden the use of magnetic separation. Iron oxides, silica-coated iron oxides, and carbon-coated-cobalt are among the most studied catalyst supports; however, other metal oxide coatings, such as ceria and titania, are also very interesting for application in catalysis. Here we report the preparation of magnetically recoverable magnetic supports containing silica, ceria, and titania. We found that the silica shell protects the iron oxide core and allows the crystalization of ceria and titania at high temperature without compromising the magnetic properties of the catalyst supports.
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Yang, Qiao Wen, Peng Fei Li, Ying Zhu, Chen Ying, Jin Lei Zuo, Hai Jun Dan, and Shao He Shi. "Study on Catalysis Properties of Graphene Catalyst Loading Iron Oxide." Applied Mechanics and Materials 316-317 (April 2013): 1014–17. http://dx.doi.org/10.4028/www.scientific.net/amm.316-317.1014.

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The graphite oxide was synthesized with Hummers liquid-phase oxidation method in experiment, and then was reduced to graphene by sodium borohydride, the iron oxide was loaded by dipping method. The catalyst that made reacted in SCR reaction unit in laboratory, the catalysis properties of catalyst was investigated. The experiment results showed that graphene was flake nanometer sheet and presented transparent fold shape, its crystal structure was in order arrangement; the nature of graphene was close to that of raw graphite; their surface function groups were similar; Fe/graphene SCR catalysts had certain catalytic ability in the reaction, the NO conversion rate of catalyst was about 50% while the temperature range was from 200°C to 300°C.
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Selvi, E. Thamarai, G. Kavinilavu, and A. Subramani. "Recent Advances Review on Iron Complexes as Catalyst in Oxidation Reactions of Organic Compounds." Asian Journal of Chemistry 34, no. 8 (2022): 1921–38. http://dx.doi.org/10.14233/ajchem.2022.23704.

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The complexes of iron are found to be too reactive and are too diverse in their reactivity, when compared to the other neighbouring metals in the group. Iron complexes are used in various catalytic reactions such as oxygenation of C–H bonds, the oxidation of alcohols to aldehydes, ketones (or) carboxylic acids, the epoxidation or dihydroxylation of alkenes and oxidative coupling reactions. Efforts are taken to avoid certain disadvantages taking place during enzymatic catalysis such as the temperature and solvent sensitivity, narrow substrate scope, restricted accessibility and so on observed while using other catalysts via iron enzymes. This helped in the various synthesis of complex molecules by increase in the number of iron catalyst systems for the oxidation reactions.
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Dissertations / Theses on the topic "Iron catalysi"

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BAI, XISHAN. "(CYCLOPENTADIENONE)IRON COMPLEXES IN REACTIONS INVOLVING HYDROGEN TRANSFER." Doctoral thesis, Università degli Studi di Milano, 2020. http://hdl.handle.net/2434/695447.

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The PhD project focused on the synthesis and catalytic applications of (cyclopentadienone)iron complexes in reactions involving hydrogen transfer. The manuscript is divided into five chapters, and after a rather comprehensive review on the state of the art in chapter 1, the thesis describes, in the remaining four chapters, the original achievements of the PhD candidate. In particular, chapter 2 describes the applications of highly active [bis(hexamethylene)cyclopentadienone]iron tricarbonyl pre-catalyst for the reduction of imine bonds under transfer hydrogenation conditions and for the reductive amination of carbonyl compounds. In chapter 3, the application of the above mentioned pre-catalyst to alcohol amination reactions via a hydrogen borrowing mechanism is discussed. Chapter 4 deals with enantioselective ketone hydrogenations using chiral (cyclopentadienone)iron complexes containing a stereogenic plane (prepared in racemic form and resolved by chiral HPLC), and with the synthesis of chiral macrocyclic (cyclopentadienone)iron complexes, putatively more suited for the transfer of the chiral information from the catalyst to the substrate. Finally, Chapter 5 describes the immobilization of (cyclopentadienone)iron complexes into a solid support, namely Metal Organic Frameworks (MOFs), to realize an active heterogeneous (cyclopentadienone)iron catalyst for catalyst recycling in batch hydrogenation reactions and potential applications in flow processes.
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Cettolin, M. "IRON AND RUTHENIUM CATALYSTS FOR THE REDUCTION OF C=O AND C=N BONDS." Doctoral thesis, Università degli Studi di Milano, 2018. http://hdl.handle.net/2434/543550.

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In this PhD thesis recent developments in Iron and Ruthenium Catalysts for the Reduction of C=O and C=N bonds are reported. In Part A the synthesis and reactivity of new iron complexes promoting the reduction of C=O and C=N bonds is reported. The state of the art in homogenous iron catalyzed hydrogenations is introduced in Chapter 1 followed by the results obtained with each class of iron complexes. Chapter 2 shows the synthesis, characterization and reactivity of BINOL-derived tetra isonitrile iron complexes. Two different families were designed differing in the length of the arm bearing the isonitrile group. Those complexes proved to promote asymmetric transfer hydrogenation (ATH) and asymmetric hydrogenation (AH) of acetophenone under basic conditions. Although the initial results were encouraging, the further attempts to improve the performances were mostly ineffective. Lack of activity, enantioselectivity and reproducibility issues convinced us to not proceed further. Chapter 3 reports a new class of isonitrile-phosphine ligands called PCCP: a chelating system bearing phosphine and isonitrile groups in the same BINOL-derived scaffold. Design, synthesis and characterization of the PCCP ligand are here reported. Once the corresponding iron complex was obtained, ATH of acetophenone was performed but only racemic 1-phenylethanol was yielded. Synthesis of the second generation of PCCP is still undergoing. Chapter 4 is mainly dedicated to the synthesis and the catalytic properties of the (cyclopentadienone)iron pre-catalyst [bis(hexamethylene) cyclopentadienone] iron complex 81. In the first part of the chapter the synthesis of 81 by the reaction of cyclooctyne with Fe(CO)5 and the investigation of its catalytic properties in C=O bond reduction is reported. As a result of the peculiar reactivity of cyclooctyne, 81 was formed in good yield (56%) by intermolecular cyclative carbonylation/complexation with Fe(CO)5. 81 was fully characterized and its crystal structure was determined by using XRD. Catalytic tests revealed that, upon in situ activation with Me3NO, 81 promotes the hydrogenation of ketones, aldehydes, and activated esters as well as the transfer hydrogenation of ketones and shows a higher activity than the classical “Knölker complex” 30. Studies on the hydrogenation kinetics in the presence of 81 and 30 suggest that this difference in activity is probably caused by the better stability of the 81-derived complex than that of the in situ generated Knölker–Casey catalyst. In the second part of Chapter 4 the first catalytic transfer hydrogenation of non-activated imines promoted by a Fe-catalyst 81 in the absence of Lewis acid co-catalysts is reported. Use of the (cyclopentadienone)iron complex 81 allowed to reduce a number of N-aryl and N-alkyl imines in very good yields using iPrOH as hydrogen source. The reaction proceeds with relatively low catalyst loading (0.5-2 mol%) and, remarkably, its scope includes also ketimines, whose reduction with a Fe-complex as the only catalyst has little precedents. Based on this new methodology, we developed a one-pot catalytic transfer hydrogenation protocol for the reductive amination of aldehydes/ketones, which provides access to secondary amines in high yield without the need to isolate imine intermediates. Chapter 5 is focused on the catalytic performances of BINOL-derived (cyclopentadienone)iron complexes recently synthesized in our group. Those iron complexes showed good activity in asymmetric hydrogenation of ketones and although the ee values are clearly inferior to the best literature examples of ketone asymmetric hydrogenation, they still represent the best results obtained so far with chiral (cyclopentadienone)iron complexes. Their reactivity in imine reduction (AH and ATH) was investigated and the results are reported. Both pre- and in situ formed imines were screened and promising results were obtained for acetophenone-derived imines. Part B of this thesis is focused on the use of ruthenium and Trost Ligand as catalyst for asymmetric hydrogenation of ketones. This research was carried out during my Erasmus+ Placement in LIKAT (Leibniz Institute for Catalysis, Rostock, Germany) under the supervision of Prof. Dr. J.G. de Vries and Dr. Sandra Hinze. In Chapter 6, we described the use of Trost ligand as ligand in the AH of ketones. Trost ligand was screened in the presence of several metal salts and found to form active catalysts when combined with ruthenium sources in the presence of hydrogen and a base. Reaction optimization was carried out by screening different Ru sources, solvents and bases. Under the optimized conditions, the complex formed by combination of Trost ligand with RuCl3(H2O)x in the presence of Na2CO3, is able to promote the AH of several ketones at r.t. with good yields and up to 96% ee. The reaction kinetics measured under the optimized conditions revealed the presence of a long induction period, during which the initially formed Ru species is transformed into the catalytically active complex by reaction with hydrogen.
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SARKAR, ABHIJNAN. "HETEROGENEOUS IRON CATALYZED CYCLOPROPANATION REACTION." Doctoral thesis, Università degli Studi di Milano, 2020. http://hdl.handle.net/2434/698432.

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Until now, NGR (nitrogen-enriched graphene) catalysts have mostly been employed for hydrogenation/oxidation reactions. In this piece of work, we expand the field of applicability of an iron NGR catalyst to cyclopropanation reactions. In this work, a heterogeneous Fe-based nitrogen-doped carbon supported catalyst has been successfully employed for the cyclopropanation reaction of alkenes. According to best of our knowledge, this is the first example of a heterogeneous Fe-catalyzed cyclopropanation reaction in today's date. These kinds of materials, generally employed for reduction or oxidation reaction, are now indeed effective catalyst also for carbene transfer reactions. The activity of Fe/Phen@C-800in the reaction was initially explored by using ethyl diazoacetate and α-methylstyrene as substrates as the model transformation. Various parameters such as solvent, temperature, time and catalyst support etc. were changed. The nature of the solvent has a minimal influence both on the reaction yield and diasteroselectivity making this reaction versatile from the media profile. The variation of the reaction temperature furnished the product in slightly lower yield. When a 5-fold amount of the olefin with respect to the diazo compound was used, homocoupling products (diethyl fumarate and diethyl maleate) deriving from EDA were detected in very low amount (<5 %). Even when the amount of olefin was decreased (1.5 eq) homocoupling side products increased, although a very good yield of the cyclopropane was maintained, demonstrating the applicability of the procedure even to more expensive olefins. Interestingly, the catalyst is water tolerant and only a slight decreased yield was obtained using a “wet” solvent. A change in the catalyst support from carbon to inorganic oxides (MgO or SiO2) does not significantly affect the yield and the diastero selectivity. Furthermore control experiments effected by employing catalysts prepared by the same procedure employed for Fe/Phen@C-800, but omitting either Fe(OAc)2 or Phen, resulted in no detectable formation of cyclopropane. Fe/Phen@C-800-catalysts showed good results in dimethoxyethane at 60 °C for 4 h, affording high yields of the desired cyclopropanes (mixture of cis and trans isomers) and only <5 % ethyl maleate and fumarate. The model reaction has been successfully scaled-up to 15-fold without significant variations of yield and diasteroisomeric ratio. The developed protocol allows obtaining several cyclopropanes from aromatic and aliphatic olefins and different diazocompounds. High to excellent yields were obtained for terminal olefins, including geminally substituted ones. Aliphatic olefins require longer reaction times. A moderate trans diastereoselectivity was observed in all cases. The catalysts do not show any activity towards internal olefins and can be used to selectively cyclopropanate a terminal olefin in a substrate containing both internal and terminal olefinic groups. The selectivity for the terminal double bond can be explained by the lack of activity of the catalyst in the case of internal olefins, most likely due to a hindered approach of the substrate to the carbene formed on the surface of the catalyst. Mono substituted diazo compounds (ester or ketone) afforded the corresponding cyclopropanes in excellent yields. More sterically demanding diazocompounds such as t-BDA has a dramatic effect on the diasteroselection, furnishing the cis- isomer only in traces. Disubstituted diazomethanes proved to be more challenging. Mono substituted diazo compounds such as diphenyldiazomethane failed to afford corresponding cyclopropanes under standard conditions, although it yielded the product in moderate yield at a higher temperature and longer reaction time (100 °C for 8h in toluene), while the more stable diazomalonate did not react even under these conditions. The catalysts was recycled several times, but a gradual deactivation is immediately observed since the first recycle. In principle, the loss of activity can be attributed either to metal leaching or to deactivation of the catalyst. After the first recycle, ICP analysis of the solution showed that only 0.1% of the initial iron had been lost in solution. This result indicates that the loss of recycling ability is not due to metal leaching. In order to make the whole process both efficient and effective, two routes of reactivation were explored. Attempted reactivation of the catalyst at 300 °C seems to have a slightly positive effect but that at 400 °C is not effective. The initial catalyst activity was effectively restored using an oxidative reactivation protocol under mild conditions (H2O2, 3 v/v% aqueous solution), which may be of more general use even for other reactions if olefins or other polymerizable compounds are employed as substrates. Oxidative regeneration is typical for catalyst that suffer of physicochemical deactivation (e.g. fouling or poisoning). Indeed, we verified that complete deactivation of the catalyst occurs even by treating the material only with styrene under the reaction conditions and the activity is restored by oxidative treatment. This result indicates the polymerization of the olefin on the catalytic surface as a possible cause for the deactivation rather than a mechanical or thermal modification of the catalyst.
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BRENNA, DAVIDE. "SUSTAINABLE PREPARATION OF APIS IN BATCH&FLOW MODE, AND IRON CATALYZED TRANSFORMATIONS." Doctoral thesis, Università degli Studi di Milano, 2018. http://hdl.handle.net/2434/585122.

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During my PhD, we focused our attention on the application of the green chemistry principles for the preparation of active pharmaceutical ingredients (API) and, more in general, of highly functionalized chiral molecules, as fine chemicals or building blocks of high value for further synthetic manipulations. Mainly the topics of our interest will be divided in three main chapters: 1- The use of a cheap and green reducing agent, HSiCl3, for imines reduction either in batch and flow mode. 2- The use of 3D-printed reactors for the preparation of APIs, engineering new reactors in order to perform continuous multi-step synthesis. 3- a) The use of iron complexes, the Knolker type, for the hydrogenations of chiral imines. b) The use of cheap and readily available Iron complex, Fe(hmds)2, for the trimerization of acetylenes, using for the first time a reducing agent free protocol.
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Paliga, James Francis. "Developing Earth-abundant metal-catalysts for hydrofunctionalisation." Thesis, University of Edinburgh, 2018. http://hdl.handle.net/1842/31115.

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The iron-catalysed hydromagnesiation of styrene derivatives has been developed further from previous publications, expanding the electrophile scope to enable the regioselective formation of new carbon-carbon and carbon-heteroatom bonds (Scheme A1). A commercially available pre-catalyst and ligand were used to give an operationally simple procedure that did not require prior synthesis of a catalyst. This work also investigated the hydromagnesiation of dienes, using a screen of ligands commonly used in transition metal catalysis. An investigation into the magnesium-catalysed hydroboration of olefins was also carried out. Although mostly unsuccessful, it was demonstrated that in the presence of a magnesium catalyst, a small amount of vinyl boronic ester could be formed from an alkyne (Scheme A2). Simple magnesium salts were also investigated for the reduction of carbonyls. Lastly, this work explored the titanium-catalysed hydrosilylation of olefins, using a novel activation method developed within the group (Scheme A3). The results were compared to those published previously using traditional organometallic activation methods and attempts at identifying conditions to improve chemoselectivity were carried out.
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Chalivendra, Saikumar. "Catalytic Destruction of Lindane Using a Nano Iron Oxide Catalyst." University of Dayton / OhioLINK, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1324497492.

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Min, Zhenhua. "Catalytic steam reforming of biomass tar using iron catalysts." Thesis, Curtin University, 2010. http://hdl.handle.net/20.500.11937/184.

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Biomass has become an increasingly important renewable source of energy forenhanced energy security and reduced CO[subscript]2 emissions. Gasification is at the core of many biomass utilisation technologies for such purposes as the generation of electricity and the production of hydrogen, liquid fuels and chemicals. However, gasification faces a number of technical challenges to become a commercially feasible renewable energy technology. The most important one is the presence of tar in the gasification product gas. The ultimate purpose of this thesis was to investigate the catalytic reforming of tar using cheap catalysts as an effective means of tar destruction.In this thesis, natural ilmenite ore and novel char-supported catalysts were studied as catalysts for the steam reforming of biomass tar derived from the pyrolysis of mallee biomass in situ in two-stage fluidised-bed/fixed-bed quartz reactors. In addition to the quantification of tar conversion, the residual tar samples were also characterised with UV-fluorescence spectroscopy. Both fresh and spent catalysts were characterised with X-ray diffraction spectroscopy, FT-Raman spectroscopy and thermogravimetric analysis.The results indicate that ilmenite has activity for the reforming of tar due to its highly dispersed iron-containing species. Both the externally added steam and low concentration oxygen affect the tar reforming on ilmenite significantly. The properties of biomass affect the chemical composition of its volatiles and therefore their reforming with the ilmenite catalyst. Compared with sintering, coke deposited on ilmenite is the predominant factor for its deactivation.During the steam reforming process, the char-supported iron/nickel catalysts exhibit very high activity for the reforming of tar. In addition, NO[subscript]x precursors could be decomposed effectively on the char-supported iron catalyst during the steam reforming process. The hydrolysis of HCN and the decomposition of NH[subscript]3 on the catalyst are the key reactions for the catalytic destruction of NO[subscript]x precursors.The kinetic compensation effects demonstrate that the reaction pathways on the char-supported catalysts are similar but different from those on ilmenite. The proprieties of catalyst support could play important roles for the activities of the catalysts and the reaction pathways on the catalysts. The char support as part of the char-supported catalysts can undergo significant structural changes during the catalytic reforming of biomass volatiles.
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Neate, Peter Gregory Nigel. "Pathways to sustainable catalysis : from novel catalysts to mechanistic understanding." Thesis, University of Edinburgh, 2017. http://hdl.handle.net/1842/25441.

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Catalysis allows for the controlled formation of new bonds, whilst reducing both time and energy expenditure in the process. Catalysis has traditionally been the realm of precious metals, which have been used to carry out a bewildering array of reactions. However, there is an ever-increasing drive for the development of catalytic methodology employing sustainable and environmentally benign catalysts. Two such candidates are organocatalysis, omitting the need for metals where possible, or the use of iron catalysis. Two key areas to the advancement of the of field catalysis are the identification and development of new catalysts as well as an understanding of the mechanisms of established catalytic processes. Novel catalysts can provide many benefits such as enhanced or even novel reactivity, access to new classes of substrates or simply be more readily accessible compared with previously developed catalysts. To this end, the first example of Lewis-base-catalysis using the recently developed cyclopropenimine motif is reported. This was exploited in the trifluoromethylation of aldehydes and ketones using the Rupert-Prakash reagent (Scheme A-1). Scheme A-1 Cyclopropenimine-catalysed trifluoromethylation of aldehydes and ketones Developing an understanding of catalytic methodologies in the terms of their mechanism and active species is also a key area in catalysis. Insight into these can direct the expansion of these systems in terms of both more effective catalysts and tailoring reaction conditions as examples. The iron-catalysed hydromagnesiation of styrene derivatives was studied in detail. This culminated in a proposed mechanism, involving a novel hydride transfer process (Scheme A-2). Studies were carried out using a combination of kinetic analysis and in situ Mössbauer spectroscopy, as well as successfully isolating and studying the reactivity of a catalytically-relevant, formal iron(0)-species.
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Madadkhani, Shiva. "Red mud as an iron-based catalyst for catalytic cracking of naphthalene." Thesis, University of British Columbia, 2016. http://hdl.handle.net/2429/60118.

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Reducing the tar content in the producer gas of biomass gasification processes remains one of the main challenges in the commercialization of this technology and, hence, the development of clean and economical tar-removing technologies is becoming increasingly important. Catalytic tar removal has the advantage of avoiding expensive gas cleaning systems while maintaining the sensible heat in the producer gas. Commercial catalysts based on noble metals and metal oxides have shown good activity towards tar destruction, but are prone to rapid deactivation. This in addition to the high replacement cost provide the rationale for the development of low-cost alternatives. Red mud, a by-product from bauxite processing, has received considerable attention in this regard due to its high iron content in the form of ferric oxide (Fe₂O₃), high surface area, and its resistance to sintering and poisoning. However, very few studies have been conducted to investigate red mud as a potential catalyst for catalytic tar removal. The aim of this study was to develop a catalyst from red mud for the removal of naphthalene, as a model compound for gasification tar. Red mud catalyst pellets were produced from raw red mud slurry, and their properties were investigated by measuring the chemical composition, surface area, and pore size distribution. Subsequently, the ability for tar decomposition was studied by passing naphthalene-nitrogen and naphthalene-hydrogen mixtures through a bed of the catalyst at five space velocities in the range of 4500-19,000 h-¹, and at reactor temperatures of 500, 600, 700 and 800°C. Catalytic cracking tests confirmed that red mud possesses a very high intrinsic catalytic activity for naphthalene conversion even at temperatures as low as 500°C and space velocities as high as 19,000 h-¹. Kinetic analysis was also performed to determine the apparent reaction order, the kinetic rate constants as well as the activation energy of the reaction. Long term tests of the catalyst showed that the activity of the catalyst diminished over time when no hydrogen was present in the system; however, in the presence of H₂ the activity was found to remain > 90% for 14 h.
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Graduate
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Wei, Duo. "Iron, manganese and rhenium-catalyzed (de)hydrogenation and hydroelementation reactions." Thesis, Rennes 1, 2019. http://www.theses.fr/2019REN1S105.

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L’objectif de ce travail doctoral a été de développer de nouvelles méthodes éco-compatibles pour réaliser efficacement des réactions de (dé)hydrogénation et d’hydroélémentation catalysées par des catalyseurs bien définis de fer, de manganèse et également de rhénium. La première partie de ce travail porte sur le développement des premiers exemples de réaction de borylation de dérivés styrènes et acétyléniques terminaux avec le pinacolborane via une réaction d’activation de liaison C-H catalysée par des systèmes à base de Fe(PMe3)4 ou de Fe(OTf)2/ DABCO. Dans une seconde partie, des complexes de fer à base de ligands carbènes N-hétérocycliques (NHC) tels que Fe(CO)4(IMes) et [CpFe(CO)2(IMes)][I] ont été efficacement utilisés pour la synthèse d’une grande variété d’amines cycliques (pyrrolidines, pipéridines et azépanes) via une réaction d’amination réductrice catalytique en présence d’hydrosilanes. De façon très intéressante, les catalyseurs commerciaux Mn2(CO)10 et Re2(CO)10 en présence de triéthylsilane, ont permis de réduire sélectivement les esters, acides carboxyliques et amides en acétals, alcools et amines correspondants. En complément de l’hydrosilylation, l’hydrogénation d’aldéhydes, cétones et aldimines a pu être efficacement menée grâce à l’utilisation de nouveaux précatalyseurs bien définis de manganèse à base de ligands bidentes facilement accessibles tels que la pyridinyl-phosphine et la 2-picolylamine. Dans la continuité de notre intérêt pour le développement de nouveaux catalyseurs à base de métaux du groupe 7, une série de complexes de rhénium coordinés à des ligands amino-bisphosphino a montré une excellente aptitude à promouvoir l’hydrogénation de composés carbonylés (aldéhydes, cétones), la mono-méthylation sélective d’amines avec le méthanol comme agent de méthylant durable et la synthèse quinolines substituées. La dernière partie de se travail décrit le développement d’oxydations aérobies d’amines pour préparer des aldimines, des composés N-hétéroaromatiques et des dérivés de type benzoimidazole via une catalyse au manganèse en l’absence de ligands ou d’additifs
This research work is aimed at developing advanced eco-friendly methodologies in the area of iron, manganese and rhenium-catalyzed (de)hydrogenation and hydroelementation reactions. Initially, we reported the first examples of highly selective catalytic direct C-H borylation of styrene derivatives and terminal alkynes with pinacolborane using Fe(PMe3)4 and Fe(OTf)2/DABCO as catalyst systems, respectively. Afterwards, N-heterocyclic carbene (NHC) based iron complexes Fe(CO)4(IMes) and [CpFe(CO)2(IMes)][I] were efficiently employed in the catalytic reductive amination reactions with hydrosilanes to access a large variety of cyclic amines (pyrrolidines, piperidines and azepanes). Interestingly, with the commercially available Mn2(CO)10 or Re2(CO)10 as catalyst and Et3SiH as an inexpensive hydrosilane source, carboxylic esters, acids and amides can be chemospecifically reduced to the corresponding acetals, alcohols and amines. Besides hydrosilylation, we also explored the application of a series of well-defined manganese pre-catalysts featuring readily available bidendate pyridinyl-phosphine and 2-picolylamine ligands in hydrogenation reactions of aldehydes, ketones and aldimines. In line with our interest in developing group 7 metals based catalysts, we have also demonstrated that a series of amino-bisphosphino ligands coordinated rhenium catalysts can efficiently promote the hydrogenation of carbonyl derivatives, the mono N-methylation of anilines with methanol and the dehydrogenative synthesis of substituted quinolines. Lastly we also developed the Mn-catalysed ligand- and additive-free aerobic oxidation of amines to prepare aldimines, N-heteroaromatics and benzoimidazole derivatives
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Books on the topic "Iron catalysi"

1

1934-, Davis Burtron H., and Occelli Mario L. 1942-, eds. Fischer-Tropsch synthesis, catalysts and catalysis. Boston: Elsevier, 2007.

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Plietker, Bernd, ed. Iron Catalysis. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-14670-1.

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Bauer, Eike, ed. Iron Catalysis II. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-19396-0.

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library, Wiley online, ed. Iron catalysis in organic chemistry: Reactions and applications. Weinheim: Wiley-VCH, 2008.

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Smith, Mark Royston. Studies of iron catalysts and iron/zirconium oxides. Birmingham: University of Birmingham, 1986.

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Stubbs, A. M. Chromium recovery from high-temperature shift Cr-Fe catalysts. Pittsburgh, PA: U.S. Dept. of the Interior, Bureau of Mines, 1988.

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Stubbs, A. M. Chromium recovery from high-temperature shift Cr-Fe catalysts. Washington, DC: U.S. Dept. of the Interior, 1988.

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Greenhalgh, Mark. Iron-Catalysed Hydrofunctionalisation of Alkenes and Alkynes. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-33663-3.

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Morawski, Antoni Waldemar. Badania żelazowych katalizatorów syntezy amoniaku na bazie interkalatów grafitu. Szczecin: Wydawn. Uczelniane Politechniki Szczecińskiej, 1990.

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Jobson, Simon. Iron-57 and Iridium-193 Mossbauer studies of supported iron-iridium Fischer-Tropsch catalysts. Birmingham: University of Birmingham, 1990.

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Book chapters on the topic "Iron catalysi"

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Padrón, Juan I., and Víctor S. Martín. "Catalysis by Means of Fe-Based Lewis Acids." In Iron Catalysis, 1–26. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-14670-1_1.

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Nakazawa, Hiroshi, and Masumi Itazaki. "Fe–H Complexes in Catalysis." In Iron Catalysis, 27–81. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-14670-1_2.

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Schröder, Kristin, Kathrin Junge, Bianca Bitterlich, and Matthias Beller. "Fe-Catalyzed Oxidation Reactions of Olefins, Alkanes, and Alcohols: Involvement of Oxo- and Peroxo Complexes." In Iron Catalysis, 83–109. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-14670-1_3.

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Che, Chi-Ming, Cong-Ying Zhou, and Ella Lai-Ming Wong. "Catalysis by Fe=X Complexes (X = NR, CR2)." In Iron Catalysis, 111–38. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-14670-1_4.

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Peters, René, Daniel F. Fischer, and Sascha Jautze. "Ferrocene and Half Sandwich Complexes as Catalysts with Iron Participation." In Iron Catalysis, 139–75. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-14670-1_5.

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Jegelka, Markus, and Bernd Plietker. "Catalysis by Means of Complex Ferrates." In Iron Catalysis, 177–213. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-14670-1_6.

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Ollevier, Thierry, and Hoda Keipour. "Enantioselective Iron Catalysts." In Topics in Organometallic Chemistry, 259–309. Cham: Springer International Publishing, 2015. http://dx.doi.org/10.1007/3418_2015_102.

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Orchin, M. "By Iron Catalysts." In Inorganic Reactions and Methods, 270–71. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2007. http://dx.doi.org/10.1002/9780470145319.ch91.

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Greenhalgh, M. D., and S. P. Thomas. "CHAPTER 8. Accessing Low Oxidation-state Iron Catalysts; Iron-catalysed Reductive Functionalisation." In Catalysis with Earth-abundant Elements, 246–60. Cambridge: Royal Society of Chemistry, 2020. http://dx.doi.org/10.1039/9781788012775-00246.

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Rana, Sujoy, Atanu Modak, Soham Maity, Tuhin Patra, and Debabrata Maiti. "Iron Catalysis in Synthetic Chemistry." In Progress in Inorganic Chemistry: Volume 59, 1–188. Hoboken, New Jersey: John Wiley & Sons, Inc., 2014. http://dx.doi.org/10.1002/9781118869994.ch01.

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Conference papers on the topic "Iron catalysi"

1

Stanke, Agija, and Kristine Lazdovica. "THE PROMOTIONAL EFFECT OF POTASSIUM ON IRON-BASED SILICA SUPPORTED CATALYST FOR CO2 HYDROGENATION." In 22nd SGEM International Multidisciplinary Scientific GeoConference 2022. STEF92 Technology, 2022. http://dx.doi.org/10.5593/sgem2022/4.1/s17.21.

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Climate change is one of the biggest global challenges. As a result of human activity, large amounts of greenhouse gases are released into the atmosphere, contributing to global warming. Carbon dioxide (CO2) is a major greenhouse gas, therefore, hydrogenation of CO2 to value-added chemicals and liquid fuels is of great importance for a sustainable future. It is well known that iron-based catalysts can demonstrate good activity in the hydrogenation of CO2. However, catalysts need to be improved to promote the formation of liquid hydrocarbons. In this study, a series of silica supported iron catalysts promoted with potassium were prepared by impregnation method. The samples were characterized by X-ray fluorescence spectroscopy, X-ray diffraction, and N2 adsorption-desorption analysis. Catalytic performance of K-0, K-2, and K-5 was investigated for CO2 hydrogenation in a fixed bed reactor operated at 300 degrees Celsius and 20 bar. The reaction products were analysed by gas chromatography and FT-IR spectroscopy. The results showed that promotion with potassium reduces the selectivity of methane and reduces the amount of gas phase hydrocarbons. At the same time promotion with potassium contributed to the formation of alcohols in the liquid phase products. The highest methanol yield was obtained using the K-2 catalyst, while the K-5 catalyst promoted the formation of both methanol and ethanol in the liquid phase.
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Das, Randip K., B. B. Ghosh, Souvik Bhattacharyya, and Maya DuttaGupta. "Catalytic Control of SI Engine Emissions Over Ion-Exchanged X-Zeolites." In ASME 1997 Turbo Asia Conference. American Society of Mechanical Engineers, 1997. http://dx.doi.org/10.1115/97-aa-077.

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Three catalysts based on X-zeolite have been developed by exchanging its Na+ ion with Copper, Iron and Nickel metal ions and tested in a SI engine exhaust for a wide range of exhaust and operating conditions. Of the three catalysts, the Cu-X catalyst exhibits the best NOx and CO conversion performance while Ni-X shows slightly better performance compared to the Fe-X catalyst at any catalyst temperature. Unlike noble metals, the doped X-zeolite catalysts, studied here, exhibit significant NOx reduction for a wide λ range and exhibit a slow rate of decrease with increase in λ ratio. Back pressure developed across the catalyst bed is found to be well-afford able and power loss due to back pressure is only 0.216% at space velocity of 52500 /h. During 30 hours of testing of each catalyst, no significant deactivation of any catalyst is observed.
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Krishna, M. V. S. Murali, Ch Indira Priyadarsini, P. Ushasri, P. V. K. Murthy, and D. Baswaraju. "Comparative Studies on Performance and Emissions of Two Stroke and Four Stroke Copper Coated Spark Ignition Engines With Methanol Blended Gasoline." In ASME 2013 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/imece2013-62264.

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Investigations were carried out to evaluate the performance of two stroke and four stroke of single cylinder, spark ignition (SI) engines having copper coated engine [CCE, copper-(thickness, 300 μ)] coated on piston crown and inner side of cylinder head] provided with catalytic converter with sponge iron as catalyst with methanol blended gasoline (80% gasoline and 20% methanol by volume) and compared with conventional engine (CE) with pure gasoline operation. Performance parameters — brake thermal efficiency (BTE), exhaust gas temperature (EGT), volumetric efficiency and exhaust emissions of carbon monoxide (CO) and un-burnt hydrocarbon (UBHC) were determined with different values of brake mean effective pressure (BMEP) of the engine and compared with one over the other of two stroke and four stroke SI engine with different versions of the engine. Formaldehyde and acetaldehyde emissions were measured by 2, 4 dinitrophenyl hydrazine (2,4 DNPH) method at peak load operation of CE and CCE of two-stroke and four-stroke SI engine. The engine was provided with catalytic converter with sponge iron as catalyst. There was provision for injection of air into the catalytic converter. Brake thermal efficiency increased with methanol blended gasoline with both versions of the engine. CCE showed improvement in the performance when compared with CE with both test fuels. Four-stroke engine decreased exhaust emissions effectively in comparison with two-stroke engine with both versions of the engine. Catalytic converter with air injection significantly reduced exhaust emissions with different test fuels on both configurations of the engine.
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Krishna, Maddali V. S. Murali, Ch Indira Priyadarsini, Y. Nagini, S. Naga Sarada, P. Usha Sri, and D. Srikanth. "Effect of Spark Ignition Timing on Copper Coated Spark Ignition Engine With Alcohol Blended Gasoline With Catalytic Converter." In ASME 2015 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/imece2015-50159.

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This paper reports performance evaluation of four–stroke, single–cylinder, water cooled, variable compression ratio (3–9), variable speed (2200–3000 rpm) spark ignition engine with brake power of 2.2 kW at a speed of 3000 rpm with copper coated combustion chamber (CCE) [copper-(thickness, 300 μ) was coated on piston crown, inner side of liner and cylinder head] with alcohol blended gasoline [20% methanol with 80% gasoline; 20% of ethanol with 80% of gasoline by volume) with varied spark ignition timing provided with catalytic converter with sponge iron as catalyst along with air injection and compared with engine with conventional combustion chamber (CE) with gasoline operation. Performance parameters and exhaust emissions (CO and UBHC) were evaluated at full load operation of the engine. Aldehydes (formaldehyde and acetaldehyde) were measured by wet method of 2,4, dinitrophenyle method at full load operation of the engine. Alcohol blended gasoline operation improved performance and reduced CO and UBHC emissions when compared with gasoline operation with both versions of the combustion chamber. At recommended and injection timing, CCE with test fuels improved performance and reduced pollution levels, when compared with CE. Catalytic converter with sponge iron as catalyst along with air injection significantly reduced pollutants with test fuels.
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Bozhenko, E. A., A. I. Sobchinskij, M. G. Zharkova, and A. V. Olshevskaya. "EXISTING TECHNOLOGIES AND PROSPECTS FOR THE DEVELOPMENT OF SYNTHESIS OF HYDROCARBONS WITH THE USE OF COBALT CATALYSTS." In INNOVATIVE TECHNOLOGIES IN SCIENCE AND EDUCATION. DSTU-Print, 2020. http://dx.doi.org/10.23947/itno.2020.492-496.

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Fischer-Tropsch synthesis is the main process for the production of synthetic hydrocarbons. The raw material of the process is a mixture of CO and H2, called synthesis gas. The process is carried out using catalysts based on cobalt or iron, supported on carriers of various nature. The composition of the resulting product depends on the process conditions and the catalyst used. Hydrocarbon synthesis technologies are developed and introduced into production by both foreign and some Russian companies.
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Gvoić, Vesna, Miljana Prica, Đurđa Kerkez, Ognjan Lužanin, Aleksandra Kulić Mandić, Milena Bečelić-Tomin, and Dragana Tomašević Pilipović. "Fenton-like oxidation of flexographic water-based key (black) dye: a definitive screening design optimization." In 10th International Symposium on Graphic Engineering and Design. University of Novi Sad, Faculty of technical sciences, Department of graphic engineering and design,, 2020. http://dx.doi.org/10.24867/grid-2020-p25.

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Fenton oxidation process has obtained large applicative use for efficient water remediation, whereby overall reaction efficiency could be improved by developing advanced Fenton catalysts. In order to synthesize iron nanoparticles with higher catalytic activity, a simple and eco-friendly method using FeCl3 and aqueous plant extract (oak leaves) was applied in this paper. The nano zero valent iron particles were used as a catalyst in Fenton treatment to remove organic dye from aqueous solution. The objective of this study was to optimize Fenton-like process for the removal of black printing dye using a recently developed design of experiment method - definitive screening design. This novel design framework significantly reduces the number of experiments required to estimate the model parameters and to establish the optimum operation conditions. The experiments were carried out in a batch mode technique, investigating the influence of dye concentration (20 - 180 mgL-1), nanoparticles dosage (0.75 - 60 mgL-1), H2O2 concentration (1 - 11 mM) and pH value of the solution (2 - 10) on the decolorization efficiency. The Fenton-like process resulted with 79% of dye removal from aqueous solution under the optimal process conditions: dye concentration of 180 mgL-1, nanoparticles dosage of 0.75 mgL-1, H2O2 concentration of 1 mM and pH of 2. Increasing the pH value to slightly acidic or near neutral (5-7) medium resulted with slight decrease in the process efficiency (69.14 - 62.63%), but a limitation in the form of sludge generation is noticeable.
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Arana, Claudya P., Ishwar K. Puri, and Swarnendu Sen. "How Do the Local Conditions Influence the Flame Synthesis of Carbon Nanostructures?" In ASME 2004 International Mechanical Engineering Congress and Exposition. ASMEDC, 2004. http://dx.doi.org/10.1115/imece2004-60382.

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Since prepared substrates offer an appropriate method for the selective production of uniform arrays of aligned CNTs and CNFs, it is important to illustrate the influence of different catalysts on the resulting nanostructures. This investigation characterizes the activity of three catalysts — iron in alloyed form as stainless steel, nickel, and platinum — on carbon nanostructure formation under identical conditions in an ethylene/air nonpremixed flame. We have synthesized well-aligned multi-walled CNTs (on Ni) and CNFs (on stainless steel). The third transition metal Pt produces CNF structures of a different kind and its activity has not been previously characterized in flames. The catalyst and gas-phase conditions leading to the formation of these different structures are discussed.
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Wicakso, Doni Rahmat, Sutijan, Rochmadi, and Arief Budiman. "Catalytic decomposition of tar derived from wood waste pyrolysis using Indonesian low grade iron ore as catalyst." In PROCEEDINGS OF THE 3RD AUN/SEED-NET REGIONAL CONFERENCE ON ENERGY ENGINEERING AND THE 7TH INTERNATIONAL CONFERENCE ON THERMOFLUIDS (RCENE/THERMOFLUID 2015). Author(s), 2016. http://dx.doi.org/10.1063/1.4949316.

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Modan, Ecaterina Magdalena, Catalin Marian Ducu, Carmen Mihaela Topala, Sorin Georgian Moga, and Aurelian Denis Negrea. "Chemical synthesis of iron oxide particles of catalysis." In 2021 13th International Conference on Electronics, Computers and Artificial Intelligence (ECAI). IEEE, 2021. http://dx.doi.org/10.1109/ecai52376.2021.9515054.

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Pan, Lujun. "Synthesis of carbon nanocoils using electroplated iron catalyst." In NANONETWORK MATERIALS: Fullerenes, Nanotubes, and Related Systems. AIP, 2001. http://dx.doi.org/10.1063/1.1420047.

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Reports on the topic "Iron catalysi"

1

Bukur, D. B. Development of improved iron Fischer-Tropsch catalysts. [Iron catalyst with nominal composition 100Fe/0. 3Cu/0. 8K]. Office of Scientific and Technical Information (OSTI), April 1992. http://dx.doi.org/10.2172/7275042.

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Datye, A. K., M. D. Shroff, Y. Jin, R. P. Brooks, J. A. Wilder, M. S. Harrington, A. G. Sault, and N. B. Jackson. Nanoscale attrition during activation of precipitated iron Fischer- Tropsch catalysts: Implications for catalyst design. Office of Scientific and Technical Information (OSTI), June 1996. http://dx.doi.org/10.2172/237416.

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Datye, A. K., M. D. Shroff, M. S. Harrington, K. E. Coulter, A. G. Sault, and N. B. Jackson. The role of catalyst activation on the activity and attrition of precipitated iron Fischer-Tropsch catalysts. Office of Scientific and Technical Information (OSTI), December 1995. http://dx.doi.org/10.2172/237401.

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Caradonna, J. P. Binuclear Non-heme Iron Catalysts. Office of Scientific and Technical Information (OSTI), May 2004. http://dx.doi.org/10.2172/832718.

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Davis, B. H. Technology Development for Iron Fischer-Tropsch Catalysis. Office of Scientific and Technical Information (OSTI), December 1997. http://dx.doi.org/10.2172/646003.

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Davis, B. H. Technology development for iron fischer-tropsch catalysis. Office of Scientific and Technical Information (OSTI), May 1997. http://dx.doi.org/10.2172/614886.

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Davis, B. H. Technology development for iron fisher-tropsch catalysis. Office of Scientific and Technical Information (OSTI), July 1997. http://dx.doi.org/10.2172/626462.

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Burton H. Davis. TECHNOLOGY DEVELOPMENT FOR IRON FISCHER-TROPSCH CATALYSIS. Office of Scientific and Technical Information (OSTI), February 1999. http://dx.doi.org/10.2172/766367.

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Burtron H. Davis. TECHNOLOGY DEVELOPMENT FOR IRON FISCHER-TROPSCH CATALYSIS. Office of Scientific and Technical Information (OSTI), April 1998. http://dx.doi.org/10.2172/769339.

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Davis, A., H. H. Schobert, G. D. Mitchell, and L. Artok. Catalyst dispersion and activity under conditions of temperature- staged liquefaction. [Catalyst precursors for molybdenum-based catalyst and iron-based catalyst]. Office of Scientific and Technical Information (OSTI), July 1992. http://dx.doi.org/10.2172/7233290.

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