Дисертації з теми "Kinetic and mechanistic study"
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Whyte, Lynden J. "A kinetic and mechanistic study of tropospheric reactions." Thesis, University of East Anglia, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.314391.
Повний текст джерелаKalinga, Shivashankar. "Peroxynitrite-induced modifications of myoglobin : a kinetic and mechanistic study /." Zürich : ETH, 2005. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=16014.
Повний текст джерелаSiu, Tung. "Kinetic and mechanistic study of aqueous sulfide-sulfite-thiosulfate system." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape8/PQDD_0007/MQ45585.pdf.
Повний текст джерелаScott, Laura-Marie. "Kinetic and mechanistic study of Lilestralis, a synthetic muguet fragrance molecule." Thesis, University of Aberdeen, 2011. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=165414.
Повний текст джерелаSouza, Valdir Araujo de. "Corrosion and erosion-corrosion of wc-based cermet coatings - a kinetic and mechanistic study." Thesis, Heriot-Watt University, 2004. http://hdl.handle.net/10399/318.
Повний текст джерелаAhlford, Katrin. "Asymmetric transfer hydrogenation of ketones : Catalyst development and mechanistic investigation." Doctoral thesis, Stockholms universitet, Institutionen för organisk kemi, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-55412.
Повний текст джерелаAt the time of the doctoral defense, the following paper was unpublished and had a status as follows: Paper 4: In press.
Gretton, Virginia Ann. "Kinetic and mechanistic study of aquated forms of platinium (II) complexes with nucleic acid derivatives." Thesis, University of York, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.359254.
Повний текст джерелаAppleton, Amanda Jane. "A kinetic and mechanistic study of the liquid-phase reactions of ester-substituted alkylperoxyl radicals." Thesis, University of York, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.265560.
Повний текст джерелаTrummer, Martin. "The effect of solid state inclusions on the reactivity of UO2 : A kinetic and mechanistic study." Doctoral thesis, KTH, Kärnkemi, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-33070.
Повний текст джерелаQC 20110511
Dey, Benu Kumar. "A study on metal ion complexation with a macrocyclic ligand : a thermodynamic, kinetic, and mechanistic investigation." Title page, contents and abstract only, 1991. http://web4.library.adelaide.edu.au/theses/09SM/09smd528.pdf.
Повний текст джерелаNilsson, Kristina. "Oxidative dissolution of doped UO2 and H2O2 reactivity towards oxide surfaces : A kinetic and mechanistic study." Licentiate thesis, KTH, Tillämpad fysikalisk kemi, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-145691.
Повний текст джерелаQC 20140527
Yang, Chunhua. "Synthesis and Kinetic Mechanism Study of Phosphonopeptide as a Dead-End Inhibitor of cAMP-Dependent Protein Kinase." Thesis, University of North Texas, 1991. https://digital.library.unt.edu/ark:/67531/metadc500671/.
Повний текст джерелаPillay, Kriveshini. "A kinetic and mechanistic study on the oxidation of chromium oxide in pure chemicals and in ferrometallurgical slags." Master's thesis, University of Cape Town, 2001. http://hdl.handle.net/11427/5415.
Повний текст джерелаChromium can exist in a number of oxidation states but the environmentally stable forms are trivalent (Cr(III)) and hexavalent (Cr(VI)) chromium. These two forms are noted for their different degrees of toxicity and mobility. Hexavalent chromium is more toxic and mobile and has been responsible for a number of illnesses in humans (Sheehan et. al., 1991). Elemental chromium and its compounds have a variety of uses in the industrial sector. The ferrometallurgical industry in particular makes use of chromium since this element imparts properties such as hardness and strenght to stainless steel. However, this industry also produces slags that contain residual amounts of chromium oxide (Cr[2]O[3]) along with other constituents such as calcium oxide (CaO). Thermodynamic data from the literature, has shown that Cr[2]O[3] can undergo oxidation at ambient temperature when in contact with CaO and atmospheric oxygen (Kilau and Shah, 1984; Hattori et al., 1978). Furthermore, the oxidation of Cr[2]O[3] in the presence of Ca(OH)[2] has also been observed at ambient temperature (Petersen, 1998).
劉新權 and Sing-quan Lew. "Kinetic and mechanistic study of reactions of hydroxy, methoxy, methylthio, methylseleno and amino derivatives of some heterocyclicand homocyclic polyenes." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 1991. http://hub.hku.hk/bib/B31232322.
Повний текст джерелаSabbagh, Ingrid Theresa. "Metathesis catalysts : an integrated computational, mechanistic and synthetic study." Thesis, Rhodes University, 2006. http://hdl.handle.net/10962/d1006208.
Повний текст джерелаSansone, John P. "The Kinetics of Epoxidation of A,B-Unsaturated Esters by Dimethyldioxirane: A Mechanistic Study." Digital Archive @ GSU, 2009. http://digitalarchive.gsu.edu/chemistry_theses/22.
Повний текст джерелаLobb, Kevin Alan. "Camphor derivatives in asymmetric synthesis: a synthetic, mechanistic and theoretical study." Thesis, Rhodes University, 2008. http://hdl.handle.net/10962/d1006770.
Повний текст джерелаBuitrago, Elina. "Transition metal-catalyzed reduction of carbonyl compounds : Fe, Ru and Rh complexes as powerful hydride mediators." Doctoral thesis, Stockholms universitet, Institutionen för organisk kemi, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-75795.
Повний текст джерелаAt the time of doctoral defense, the following paper was unpublished and had a status as follows: Paper 2: Manuscript.
Mueanngern, Yutichai. "Mechanistic Study for Selective Hydrogenation of Crotonaldehyde Using Platinum/Metal-Oxide Catalysts—A Gas-Phased Kinetics Study." The Ohio State University, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=osu1462804731.
Повний текст джерелаThinon, Olivier. "CO conversion over dual-site catalysts by the Water-Gas Shift Reaction for fuel cell applications : comparative mechanistic and kinetic study of gold and platinum supported catalysts." Thesis, Lyon 1, 2009. http://www.theses.fr/2009LYO10187.
Повний текст джерелаThe Fuel Cells are promising solution to reduce the air pollution. One of the cost-efficient alternatives is to produce hydrogen from another fuel such as methane or bio-ethanol. A hydrogen fuel processor consists in generating a hydrogen-rich mixture and reducing the carbon monoxide content, as PEM fuel cells are very low CO tolerance. One of these units is the water-gas shift reactor, which converts CO into CO2 by the reaction with water and provides additional hydrogen. Catalysts based on a metal (Pt, Pd, Ru, Rh, Au, Cu) supported on an oxide (CeO2, TiO2, ZrO2, Fe2O3, CeO2/Al2O3) were compared for the WGS reaction in the same conditions and in the presence of CO2 and H2. A kinetic study was conducted on catalysts Pt/CeO2, Au/CeO2, Pt/TiO2 and Au/TiO2. A power law rate model was used to determine apparent activation energies and reaction orders. A dual-site reaction mechanism was proposed to explain the different activities between the four catalysts. The sorption parameters of H2O and CO2 on the supports was quantitatively determined from temperature-programmed desorption experiments
Christmann, Julien. "Photochimie moléculaire des processus de photopolymérisation : de l'étude mécanistique à la modélisation cinétique." Thesis, Mulhouse, 2017. http://www.theses.fr/2017MULH0698.
Повний текст джерелаThis thesis deals with the mechanistic study of complex photoinitiating systems and the kinetic modeling of the photopolymerization process. In a first time, the photochemical mechanism of a system combining [Ru(bpy)3]2+ and RAFT agents for the initiation and control of a radical process has been studied. An energy transfer has been clearly demonstrated, contradicting the electron transfer mechanism generally proposed. A dual bicyclic three-component photoinitiating system ITX/IOD+/RSH has been considered for the synthesis of organic-inorganic hybrid materials. Under light exposure, this system produces simultaneously radicals and protons, enabling the initiation of a radical polymerization and a sol-gel process, respectively. In a second time, interdependence between photopolymerization kinetics and evolution of the medium’s properties has been studied, through developing a kinetic model for the simulation of the whole photopolymerization process. Photoinitiating systems of growing complexity have been included in order to study specificities of their kinetics. A type-I system has shown major termination modes and their evolution during the polymer synthesis, while the non-negligible role of back electron transfer has been highlighted for type-II photoinitiating systems. Role of terminating agent of a photoproduct based on a cationic dye, as well as some specificities of photocyclic three-component systems, have been finally studied with the model
Montoya, Arango Juan Felipe. "Photocatalytic reactions: Mechanistic and kinetic implications." Doctoral thesis, Universitat Autònoma de Barcelona, 2013. http://hdl.handle.net/10803/131320.
Повний текст джерелаTiO2 photocatalysis has been extensively studied over the last three decades. The output of this research effort is an increasing fundamental understanding of the phenomena involved in the process and the successful application of photocatalytic technological devices in different areas such as environmental purification, renewable energy production, and design of materials with “self cleaning” properties. However, the scientific community in the field of photocatalysis recognizes that several fundamentals issues still remain unclear. In the 80 and 90’s decades several reaction mechanisms and kinetic models were proposed for the interpretation of the large body of experimental data concerning TiO2-assisted photooxidation reactions. Despite the huge advance in the fundamental knowledge of these topics that was achieved, several assumptions taken as truths by the scientific community were challenged by the findings of surface science studies on TiO2 crystals reported in the first decade of this century. These findings brought new insights into the surface chemistry of TiO2. It was demonstrated that the TiO2 catalyst can not be considered just as particles devoid of surface structure. Conversely, the chemical structure of the catalyst surface and its interaction with molecules in the reaction media is a determinant factor to understand the events triggered by TiO2 excitation. This PhD thesis is aimed at elucidating some alternative interpretations of kinetics and mechanisms of photocatalytic oxidation reactions taking into account the aforementioned novel insights. This task has been addressed by a comprehensive analysis of the scientific literature on the topic of surface chemistry of TiO2 and by an experimental study comprising TiO2-surface/substrate interactions, their relationship with kinetics of photooxidation reactions, and mechanistic issues related to photocatalytic oxidation of several model compounds. The above issues are discussed in detail in four published articles and three manuscripts that will be submitted for publication in the near future. The results reported here confirm the crucial role of the TiO2 surface in the mechanisms and the kinetics of interfacial charge transfer in photocatalytic reactions. Specifically, the role of TiO2 surface lattice oxygens in the reaction mechanism was elucidated. Moreover, it was found that the mechanism of interfacial charge transfer strongly depends on the degree of electronic interaction between the semiconductor surface and the organic substrate to be photooxidized. The above findings provide new ideas to the current scientific debate around fundamental issues of TiO2 photocatalysis. On the other hand, the new insights into the kinetics and mechanisms of photocatalytic reactions reported here can provide more rational strategies for the development of more efficient photocatalysts for practical applications.
Jang, Mei-Huei. "Mechanistic and kinetic studies of Trimethylamine Dehydrogenase /." The Ohio State University, 2000. http://rave.ohiolink.edu/etdc/view?acc_num=osu1488191124572066.
Повний текст джерелаGuo, Xingwei. "Kinetic and mechanistic studies on reactions of quinones." Diss., Ludwig-Maximilians-Universität München, 2014. http://nbn-resolving.de/urn:nbn:de:bvb:19-177113.
Повний текст джерелаHagger, A. J. "Kinetic and mechanistic aspects of amine-epoxide reactions." Thesis, University of Surrey, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.234488.
Повний текст джерелаZotova, Natalia. "Kinetic and mechanistic investigation of asymmetric organocatalytic reactions." Thesis, Imperial College London, 2008. http://hdl.handle.net/10044/1/1395.
Повний текст джерелаKumar, Hans. "Mechanistic kinetic modeling of the hydrocracking of complex feedstocks." [College Station, Tex. : Texas A&M University, 2006. http://hdl.handle.net/1969.1/ETD-TAMU-1063.
Повний текст джерелаSilver, Sunshine Christine. "Kinetic, mechanistic and spectroscopic studies of spore photoproduct lyase." Diss., Montana State University, 2010. http://etd.lib.montana.edu/etd/2010/silver/SilverS1210.pdf.
Повний текст джерелаPoncipe, Carlo. "Some kinetic and mechanistic studies of epoxy resin cure." Thesis, University of Surrey, 1985. http://epubs.surrey.ac.uk/842722/.
Повний текст джерелаDu, Yi. "Layered cobalt hydroxides: synthesis, characterisation, kinetic and mechanistic studies." Thesis, University of Oxford, 2008. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.489431.
Повний текст джерелаEapen, S. S. "Kinetic and mechanistic studies of aquated cisplatin-nucleobase interactions." Thesis, University of York, 1989. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.480533.
Повний текст джерелаHlalele, Lebohang. "Kinetic and mechanistic features of nitroxide mediated (co)polymerization." Thesis, Stellenbosch : University of Stellenbosch, 2011. http://hdl.handle.net/10019.1/6515.
Повний текст джерелаAllegrezza, Michael LeGrande. "Mechanistic Insight Into Photo-Polymerization Techniques Through Kinetic Analysis." Miami University / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=miami1605182244121264.
Повний текст джерелаKahn, Kalju. "Kinetic and mechanistic characterization of the urate oxidase reaction /." free to MU campus, to others for purchase, 1998. http://wwwlib.umi.com/cr/mo/fullcit?p9924895.
Повний текст джерелаRoy, Biplab. "Interfacial kinetic and mechanistic studies on Dendrimer-liposome interactions." Thesis, University of North Bengal, 2018. http://ir.nbu.ac.in/handle/123456789/2773.
Повний текст джерелаRogers, Emma Irene. "Electrode Kinetic and Mechanistic Studies in Room Temperature Ionic Liquids." Thesis, University of Oxford, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.514984.
Повний текст джерелаMohamed, M. A. "Kinetic and mechanistic studies of thermal decomposition reactions of solids." Thesis, Queen's University Belfast, 1985. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.374228.
Повний текст джерелаLi, Tie. "Kinetic and mechanistic investigation of reductive dechlorination at iron surfaces." Diss., The University of Arizona, 2002. http://hdl.handle.net/10150/279981.
Повний текст джерелаWang, Zhihong. "Kinetic isotope effects, dynamic effects, and mechanistic studies of organic reactions." Texas A&M University, 2005. http://hdl.handle.net/1969.1/4886.
Повний текст джерелаCraig, Daniel Henry. "Kinetic and mechanistic studies of morphinone reductase and pentaerythritol tetranitrate reductase." Thesis, University of Leicester, 2000. http://hdl.handle.net/2381/29647.
Повний текст джерелаSchweicher, Julien. "Kinetic and mechanistic studies of CO hydrogenation over cobalt-based catalysts." Doctoral thesis, Universite Libre de Bruxelles, 2010. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/210036.
Повний текст джерелаTwo different types of catalysts have been investigated during this thesis: cobalt with magnesia used as support or dispersant (Co/MgO) and cobalt with silica used as support (Co/SiO2). Each catalyst from the first class is prepared by precipitation of a mixed Co/Mg oxalate in acetone. This coprecipitation is followed by a thermal decomposition under reductive atmosphere leading to a mixed Co/MgO catalyst. On the other hand, Co/SiO2 catalysts are prepared by impregnation of a commercial silica support with a chloroform solution containing Co nanoparticles. This impregnation is then followed by a thermal activation under reductive atmosphere.
The mixed Co/Mg oxalates and the resulting Co/MgO catalysts have been extensively characterized in order to gain a better understanding of the composition, the structure and the morphology of these materials: thermal treatments under reductive and inert atmospheres (followed by MS, DRIFTS, TGA and DTA), BET surface area measurements, XRD and electron microscopy studies have been performed. Moreover, an original in situ technique for measuring the H2 chemisorption surface area of catalysts has been developed and used over our catalysts.
The performances of the Co/MgO and Co/SiO2 catalysts have then been evaluated in the CO+H2 reaction at atmospheric pressure. Chemical Transient Kinetics (CTK) experiments have been carried out in order to obtain information about the reaction kinetics and mechanism and the nature of the catalyst active surface under reaction conditions. The influence of several experimental parameters (temperature, H2 and CO partial pressures, total volumetric flow rate) and the effect of passivation are also discussed with regard to the catalyst behavior.
Our results indicate that the FT active surface of Co/MgO 10/1 (molar ratio) is entirely covered by carbon, oxygen and hydrogen atoms, most probably associated as surface complexes (possibly formate species). Thus, this active surface does not present the properties of a metallic Co surface (this has been proved by performing original experiments consisting in switching from the CO+H2 reaction to the propane hydrogenolysis reaction (C3H8+H2) which is sensitive to the metallic nature of the catalyst). CTK experiments have also shown that gaseous CO is the monomer responsible for chain lengthening in the FT reaction (and not any CHx surface intermediates as commonly believed). Moreover, CO chemisorption has been found to be irreversible under reaction conditions.
The CTK results obtained over Co/SiO2 are quite different and do not permit to draw sharp conclusions concerning the FT reaction mechanism. More detailed studies would have to be carried out over these samples.
Finally, Co/MgO catalysts have also been studied on a combined DRIFTS/MS experimental set-up in Belfast. CTK and Steady-State Isotopic Transient Kinetic Analysis (SSITKA) experiments have been carried out. While formate and methylene (CH2) groups have been detected by DRIFTS during the FT reaction, the results indicate that these species play no role as active intermediates. These formates are most probably located on MgO or at the Co/MgO interface, while methylene groups stand for skeleton CH2 in either hydrocarbon or carboxylate. Unfortunately, formate/methylene species have not been detected by DRIFTS over pure Co catalyst without MgO, because of the full signal absorption.
Doctorat en Sciences de l'ingénieur
info:eu-repo/semantics/nonPublished
Howes, Neil Uist Macdonald. "Kinetic and mechanistic studies in atmospheric chemistry using photoionization mass spectrometry." Thesis, University of Leeds, 2016. http://etheses.whiterose.ac.uk/15766/.
Повний текст джерелаGómez, Martín Juan Carlos. "Spectroscopic, kinetic and mechanistic studies of atmospherically relevant I2-O3 photochemistry." Berlin Logos-Verl, 2006. http://deposit.d-nb.de/cgi-bin/dokserv?id=2927252&prov=M&dok_var=1&dok_ext=htm.
Повний текст джерелаGómez, Martín Juan Carlos. "Spectroscopic, kinetic and mechanistic studies of atmospherically relevant I2/O3 photochemistry /." Berlin : Logos-Verl, 2007. http://deposit.d-nb.de/cgi-bin/dokserv?id=2927252&prov=M&dok_var=1&dok_ext=htm.
Повний текст джерелаPiety, Charles Andrew. "Kinetic and mechanistic studies of reactions of atomic chlorine with haloalkanes." Thesis, Georgia Institute of Technology, 1996. http://hdl.handle.net/1853/27057.
Повний текст джерелаGarner, Mark. "Kinetic and mechanistic studies of Cisplatin derivatives with nucleic acid fragments." Thesis, University of York, 1992. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.306475.
Повний текст джерелаFerretti, Antonio. "Kinetic and mechanistic studies of Pd-catalyzed amination of aryl halides." Thesis, Imperial College London, 2009. http://hdl.handle.net/10044/1/5483.
Повний текст джерелаIslam, Zahidul. "Mechanistic and kinetic investigations of bacterial, human and cancerous thymidylate synthase." Diss., University of Iowa, 2017. https://ir.uiowa.edu/etd/5779.
Повний текст джерелаGuo, Yafang <1991>. "Kinetic and mechanistic studies on unconventional antioxidant activities of natural compounds." Doctoral thesis, Alma Mater Studiorum - Università di Bologna, 2021. http://amsdottorato.unibo.it/9950/1/Yafang_Guo.pdf.
Повний текст джерелаWarner, Madeleine. "Ruthenium-Catalyzed Hydrogen Transfer Reactions : Mechanistic Studies and Chemoenzymatic Dynamic Kinetic Resolutions." Doctoral thesis, Stockholms universitet, Institutionen för organisk kemi, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-89263.
Повний текст джерелаAt the time of the doctoral defense, the following papers were unpublished and had a status as follows: Paper 2: Manuscript. Paper 5: Mansucript.