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Articoli di riviste sul tema "Wet chemical syntheses"

Autore: Grafiati

Pubblicato: 14 dicembre 2024

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1

Gilroy, Kyle D., Hsin-Chieh Peng, Xuan Yang, Aleksey Ruditskiy e Younan Xia. "Symmetry breaking during nanocrystal growth". Chemical Communications 53, n. 33 (2017): 4530–41. http://dx.doi.org/10.1039/c7cc01121k.

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2

Wang, Bingzhe, Verena Engelhardt, Alexandra Roth, Rüdiger Faust e Dirk M. Guldi. "n- versus p-doping of graphite: what drives its wet-chemical exfoliation?" Nanoscale 9, n. 32 (2017): 11632–39. http://dx.doi.org/10.1039/c7nr03379f.

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We have performed the syntheses of a novel pyrene-porphyrazine conjugate (ZnPzPy) and a reference porphyrazine (ZnPz) to promote the wet-chemical exfoliation of graphite based on the synergetic use of ultrasonication, centrifugation, and doping.

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3

Palmero, Paola. "Microstructural Tailoring of YAG and YAG-Containing Nanoceramics through Advanced Synthesis Routes". Advances in Science and Technology 62 (ottobre 2010): 34–43. http://dx.doi.org/10.4028/www.scientific.net/ast.62.34.

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Wet-chemical syntheses have been applied to the production of ceramic powders, with the aim of tailoring compositional and micro/nanostructural features, as an imperative requirement toward the elaboration of ceramic components with improved functional or even structural properties. Three syntheses are here presented and discussed, respectively concerning a purephased, nanostructured YAG powder, a biphasic Al2O3-YAG composite and three-phased Al2O3- YAG-ZrO2 material. In particular, this paper is aimed to illustrate the path followed from the set-up of the easier synthesis of the mono-phased system to the definition of the advanced procedures for the production of more and more complex compositions.

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Guldi, Dirk Michael. "(Invited) Towards Understanding the Competition of Electron and Energy Transfer in “Molecular” Nanographenes on the Example of Hexa-Peri-Hexabenzocoronene". ECS Meeting Abstracts MA2024-01, n. 7 (9 agosto 2024): 795. http://dx.doi.org/10.1149/ma2024-017795mtgabs.

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Bottom-up strategies have allowed the synthesis of “molecular” nanographenes with full control over size, shape and functionality. In recent years, the progress on wet chemical approaches, oxidative cyclodehydrogenation amongst all, has been the foundation to the synthesis of an impressive number of soluble and well-defined molecular nanographenes. The level of control over nanographene syntheses has allowed a fine-tuning of the photophysical and electrochemical properties and, in turn, has a compelling potential in the field of material science. In this regard, understanding and harnessing the competition between electron transfer and energy transfer in nanographenic systems is of utmost importance. However, a comprehensive structure-property relationship remains still an open aspect. In the present review we describe a large variety of hexa-peri-hexabenzocoronene (HBC)-based nanographenes obtained through wet chemical strategies and linked – either covalently or non-covalently – to porphyrins, rylenes, fullerenes, etc. Particular attention was placed on the optical, electrochemical and excited-state properties.

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Wang, Yumeng, e Zhenxing Yin. "Review of Wet Chemical Syntheses of Copper Nanowires and Their Recent Applications". Applied Science and Convergence Technology 28, n. 6 (30 novembre 2019): 186–93. http://dx.doi.org/10.5757/asct.2019.28.6.186.

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6

Becker, Sidney, Jonas Feldmann, Stefan Wiedemann, Hidenori Okamura, Christina Schneider, Katharina Iwan, Antony Crisp, Martin Rossa, Tynchtyk Amatov e Thomas Carell. "Unified prebiotically plausible synthesis of pyrimidine and purine RNA ribonucleotides". Science 366, n. 6461 (3 ottobre 2019): 76–82. http://dx.doi.org/10.1126/science.aax2747.

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Theories about the origin of life require chemical pathways that allow formation of life’s key building blocks under prebiotically plausible conditions. Complex molecules like RNA must have originated from small molecules whose reactivity was guided by physico-chemical processes. RNA is constructed from purine and pyrimidine nucleosides, both of which are required for accurate information transfer, and thus Darwinian evolution. Separate pathways to purines and pyrimidines have been reported, but their concurrent syntheses remain a challenge. We report the synthesis of the pyrimidine nucleosides from small molecules and ribose, driven solely by wet-dry cycles. In the presence of phosphate-containing minerals, 5′-mono- and diphosphates also form selectively in one-pot reactions. The pathway is compatible with purine synthesis, allowing the concurrent formation of all Watson-Crick bases.

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7

Padmini, P., e T. R. Narayanan Kutty. "Wet chemical syntheses of ultrafine multicomponent ceramic powders through gel to crystallite conversion". Journal of Materials Chemistry 4, n. 12 (1994): 1875. http://dx.doi.org/10.1039/jm9940401875.

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8

Isobe, T. "Low-temperature wet chemical syntheses of nanocrystal phosphors with surface modification and their characterization". physica status solidi (a) 203, n. 11 (settembre 2006): 2686–93. http://dx.doi.org/10.1002/pssa.200669630.

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9

Sportelli, Maria, Margherita Izzi, Annalisa Volpe, Maurizio Clemente, Rosaria Picca, Antonio Ancona, Pietro Lugarà, Gerardo Palazzo e Nicola Cioffi. "The Pros and Cons of the Use of Laser Ablation Synthesis for the Production of Silver Nano-Antimicrobials". Antibiotics 7, n. 3 (28 luglio 2018): 67. http://dx.doi.org/10.3390/antibiotics7030067.

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Silver nanoparticles (AgNPs) are well-known for their antimicrobial effects and several groups are proposing them as active agents to fight antimicrobial resistance. A wide variety of methods is available for nanoparticle synthesis, affording a broad spectrum of chemical and physical properties. In this work, we report on AgNPs produced by laser ablation synthesis in solution (LASiS), discussing the major features of this approach. Laser ablation synthesis is one of the best candidates, as compared to wet-chemical syntheses, for preparing Ag nano-antimicrobials. In fact, this method allows the preparation of stable Ag colloids in pure solvents without using either capping and stabilizing agents or reductants. LASiS produces AgNPs, which can be more suitable for medical and food-related applications where it is important to use non-toxic chemicals and materials for humans. In addition, laser ablation allows for achieving nanoparticles with different properties according to experimental laser parameters, thus influencing antibacterial mechanisms. However, the concentration obtained by laser-generated AgNP colloids is often low, and it is hard to implement them on an industrial scale. To obtain interesting concentrations for final applications, it is necessary to exploit high-energy lasers, which are quite expensive. In this review, we discuss the pros and cons of the use of laser ablation synthesis for the production of Ag antimicrobial colloids, taking into account applications in the food packaging field.

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10

Correya, Adrine Antony, V. P. N. Nampoori e A. Mujeeb. "Microwave assisted synthesis of bismuth titanate nanosheets and its photocatalytic effects". PeerJ Materials Science 5 (7 marzo 2023): e26. http://dx.doi.org/10.7717/peerj-matsci.26.

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Bismuth titanate syntheses using wet chemical methods are comparatively time-consuming and require long durations for completion using the well-studied sol-gel method. In this work, we use microwave initiated combustion method to produce ultra-thin bismuth titanate nanosheets. This method reduces the time required for the synthesis down to minutes, when compared to hours or days in most other methods. The thickness of the synthesized sheets were tuned by adding polyethylene glycol as a capping agent, which in turn affects the band gap and subsequently, their photocatalytic properties. The samples were characterized using x-ray diffraction, transmission electron microscopy and absorption spectrophotometry. Photocatalytic effect of the synthesized bismuth titanate nanosheets on methylene blue dye also studied and variation of band gap depending on thickness of the nanosheets were observed.

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Stride, John A., e Nam T. Tuong. "Controlled Synthesis of Titanium Dioxide Nanostructures". Solid State Phenomena 162 (giugno 2010): 261–94. http://dx.doi.org/10.4028/www.scientific.net/ssp.162.261.

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Recent interest in nanostructured titanium dioxide (TiO2) has been driven by the excellent photocatalytic and optical properties exhibited by the anatase and rutile phases. This article highlights the relationship between reaction conditions and the resultant nanostructured TiO2 and is primarily focused on wet chemical synthetic methods. We show that solvothermal syntheses of nano-TiO2 can be rationalised by making use of a diffusion-controlled model accounting for physical properties of the solvent such as the vapour-pressure, allowing the prediction and control the phase, size and type of nanostructured TiO2 product. This external control makes it possible for the systematic synthesis of TiO2 nanostructures via parameters such as the solvent chain length, the reaction temperature and time, and also by the addition of surfactants, providing the ability to design and tailor the nanostructured TiO2, which is vital for the optimal application of these nanostructures in photocatalytic or optical applications.

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12

Rosa, Andriele L., Luana R. Farias, Vinicius P. Dias, Otávio B. Pacheco, Fernando D. P. Morisso, Luiz F. Rodrigues Junior, Michele R. Sagrillo, Aline Rossato, Luis A. L. Santos e Tiago M. Volkmer. "Effect of synthesis temperature on crystallinity, morphology and cell viability of nanostructured hydroxyapatite via wet chemical precipitation method". International Journal of Advances in Medical Biotechnology - IJAMB 5, n. 1 (1 marzo 2022): 29–35. http://dx.doi.org/10.52466/ijamb.v5i1.110.

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Hydroxyapatite (HA) is the main natural mineral constituent of bones and is a good alternative for biomedical applications because it is osteoconductive, non-allergenic, and non-carcinogenic, which ensures high biocompatibility. A commonly used method for obtaining hydroxyapatite is the wet route, which is simple and low-cost, produces only water as a final residue, and provides HA with a crystallinity comparable to that of bone tissue, which favors its biocompatibility. Therefore, the objective of this work is to synthesize hydroxyapatite via the wet chemical precipitation method at different temperatures (4°C, 30°C, 50°C, or 70°C) to observe the influence of temperature on crystallinity, morphology, and cytotoxicity. The results of X-ray diffraction show that all syntheses resulted in pure hydroxyapatite, while increasing the temperature led to higher crystallinity (10.6% to 56.2%) and the crystal size was slightly affected. The increase in temperature changed the particle shape from irregular to needle-like. Cell viability was tested by PicoGreen® in VERO cells for samples at concentrations of 30 and 300µg/mL, and the samples synthesized at 4°C, with lower crystallinity, caused less DNA damage to cells compared to the negative control.

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13

Mann, Markus, Michael Küpers, Grit Häuschen, Martin Finsterbusch, Dina Fattakhova-Rohlfing e Olivier Guillon. "Evaluation of Scalable Synthesis Methods for Aluminum-Substituted Li7La3Zr2O12 Solid Electrolytes". Materials 14, n. 22 (11 novembre 2021): 6809. http://dx.doi.org/10.3390/ma14226809.

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Solid electrolyte is the key component in all-solid-state batteries (ASBs). It is required in electrodes to enhance Li-conductivity and can be directly used as a separator. With its high Li-conductivity and chemical stability towards metallic lithium, lithium-stuffed garnet material Li7La3Zr2O12 (LLZO) is considered one of the most promising solid electrolyte materials for high-energy ceramic ASBs. However, in order to obtain high conductivities, rare-earth elements such as tantalum or niobium are used to stabilize the highly conductive cubic phase. This stabilization can also be obtained via high levels of aluminum, reducing the cost of LLZO but also reducing processability and the Li-conductivity. To find the sweet spot for a potential market introduction of garnet-based solid-state batteries, scalable and industrially usable syntheses of LLZO with high processability and good conductivity are indispensable. In this study, four different synthesis methods (solid-state reaction (SSR), solution-assisted solid-state reaction (SASSR), co-precipitation (CP), and spray-drying (SD)) were used and compared for the synthesis of aluminum-substituted LLZO (Al:LLZO, Li6.4Al0.2La3Zr2O12), focusing on electrochemical performance on the one hand and scalability and environmental footprint on the other hand. The synthesis was successful via all four methods, resulting in a Li-ion conductivity of 2.0–3.3 × 10−4 S/cm. By using wet-chemical synthesis methods, the calcination time could be reduced from two calcination steps for 20 h at 850 °C and 1000 °C to only 1 h at 1000 °C for the spray-drying method. We were able to scale the synthesis up to a kg-scale and show the potential of the different synthesis methods for mass production.

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14

Wang, Liguo, Jianpeng Shang, Shimin Liu, Lequan Liu, Shiguo Zhang e Youquan Deng. "Environmentally benign and effective syntheses of N-substituted carbamates via alcoholysis of disubstituted ureas over TiO2/SiO2 catalyst". Pure and Applied Chemistry 84, n. 3 (4 ottobre 2011): 461–71. http://dx.doi.org/10.1351/pac-con-11-05-06.

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Catalytic syntheses of cyclohexyl carbamates via alcoholysis of dicyclohexyl urea (DCU), which can be synthesized from CO2 and amines, were first investigated with low-molecular-weight alcohols, i.e., methanol, ethanol, butan-1-ol. TiO2/SiO2 catalyst was prepared by wet impregnation method using tetrabutyl titanate as titanium source. The catalyst was characterized by inductively coupled plasma/atomic emission spectroscopy (ICP/AES), N2 adsorption, X-ray diffraction (XRD), field emission/scanning electron microscopy (FE/SEM), transmission electron microscopy TEM), and NH3/temperature-programmed desorption (TPD) in detail. TiO2/SiO2 with 5 wt % loadings and calcination at 600 °C exhibited better catalytic activity, and excellent yields of >95 % with 98 % selectivities for desired carbamates were achieved. Accordingly, the strong acidity was considered to be responsible for its superior activity. Moreover, the catalytic activity can essentially be preserved during the recycling tests. The scope was also expanded to synthesize other alkyl or aryl carbamates via alcoholysis of the corresponding disubstituted ureas, and 94 % yields with 96 % selectivities can be achieved. It provided a good candidate for the organic carbamates syntheses via a phosgene/halogen-free and effective route.

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Svec, Jiri, Eva Bartoníčková, Alžběta Jebavá, Jiří Másilko e Petr Ptacek. "Synthesis of Layered Calcium Cobaltites Intended for Thermolectric Application". Materials Science Forum 851 (aprile 2016): 110–15. http://dx.doi.org/10.4028/www.scientific.net/msf.851.110.

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Layered misfit cobaltites exhibit adequate combination of electrical and thermal properties under the high temperatures. Cobaltites are due to these properties and appropriate costs optimal candidates for thermoelectric industrial applications [1]. Calcium cobaltites were prepared via conventional and less conventional synthesizing methods. Wet citric and glycine/nitrate combustion syntheses were compared with conventional solid state reaction. Prepared powders were studied in terms of phase and chemical composition, morphology, size of particles/agglomerates and thermoelectric properties. Particle size of prepared powders was varied from nano to micro size with different level of agglomeration. The lowest values of particle size (~ 160 nm) with low agglomeration were obtained with the citric combustion method. The influence of the preparation method on the properties of final bulk product was evaluated within this work.

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Sousa Neto, Vicente de Oliveira, Gilberto Dantas Saraiva, A. J. Ramiro De Castro, Paulo de Tarso Cavalcante Freire e Ronaldo Ferreira Do Nascimento. "Electrodeposition of One-Dimensional Nanostructures: Environmentally Friendly Method". Journal of Composites and Biodegradable Polymers 10 (28 dicembre 2022): 19–42. http://dx.doi.org/10.12974/2311-8717.2022.10.03.

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During the past decade, nanotechnology has become an active field of research because of its huge potential for a variety of applications. When the size of many established, well-studied materials is reduced to the nanoscale, radically improved or new surprising properties often emerge. There are mainly four types of nanostructures: zero, one, two and three dimensional structures. Among them, one-dimensional (1D) nanostructures have been the focus of quite extensive studies worldwide, partially because of their unique physical and chemical properties. Compared to the other three dimensional structures, the first characteristic of 1D nanostructure is its smaller dimension structure and high aspect ratio, which could efficiently transport electrical carriers along one controllable direction; as a consequence they are highly suitable for moving charges in integrated nanoscale systems. The second characteristic of 1D nanostructure is its device function, which can be exploited as device elements in many kinds of nanodevices. Indeed it is important to note that superior physical properties including superconductivity, enhanced magnetic coercivity and the unusual magnetic state of some 1D nanostructures have been theoretically predicted and some of them have already been confirmed by experiments. In order to attain the potential offered by 1D nanostructures, one of the most important issues is how to synthesize 1D nanostructures in large quantities with a convenient method. Many synthetic strategies, such as solution or vapor-phase approaches, template-directed methods, electrospinning techniques, solvothermal syntheses, self-assembly methods, etc., have been developed to fabricate different classes of 1D nanostructured materials, including metals, semiconductors, functional oxides, structural ceramics, polymers and composites. All the methods can be divided into two categories: those carried out in a gas phase (i.e., “dry processes”) and those carried out in a liquid phase (i.e., “wet processes”). The dry processes include, for example, techniques such as chemical vapor deposition (CVD), physical vapor deposition (PVD), pulse laser deposition (PLD), metal-organic chemical vapor deposition (MOCVD), and molecular beam epitaxy (MBE). In general, these gas phase processes require expensive and specialized equipments. The wet processes include sol-gel method, hydrothermal method, chemical bath deposition (CBD) and electrodeposition. Among the above mentioned methods, electrodeposition has many advantages such as low cost, environmentally friendly, high growth rate at relatively low temperatures and easier control of shape and size. Generally, there are two strategies to produce the 1D nanostructures through the electrochemical process. They are the template-assisted electrodeposition, and the template-free electrodeposition. In this chapter, we will approach the recent progress and offer some prospects of future directions in electrodeposition of 1D nanostructures. Electrodeposition is a simple and flexible method for the synthesis of one-dimensional (1D) nanostructures and has attracted great attention in recent years.

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Viet Ha, Chu, Hoang Thi Hang, Nguyen Thi Bich Ngoc, Ngo Thi Huong, Vu Thi Kim Lien e Tran Hong Nhung. "SYNTHESIS OF CdSe/CdS AND CdSe/CdS/SiO2 NANOPARTICLES VIA WET CHEMICAL METHOD". Journal of Science, Natural Science 60, n. 7 (2015): 75–80. http://dx.doi.org/10.18173/2354-1059.2015-0035.

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de Oliveira Fortes, Vanessa Danielle, Wandeberg Aranha Diniz, Euler Araujo dos Santos, Cristiane Xavier Resende, Luiz Eduardo Almeida e Zaine Teixeira. "Nanostructures of Hydroxyapatite in Pluronic F 127: Preparation and Structural Characterization". Key Engineering Materials 493-494 (ottobre 2011): 31–36. http://dx.doi.org/10.4028/www.scientific.net/kem.493-494.31.

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In this work, nanocomposites of hydroxyapatite and Pluronic F127 were prepared by a wet chemical method, using acid-basic reaction with Ca/P ratio of 1.67 in 10% (m/V) Pluronic F127 at 0, 37 and 90°C. The final concentration of Pluronic F127 was adjusted to 37% (m/V) at 4°C. Afterwards, the samples were lyophilized. Characterization was performed in purified samples (after Pluronic F127 removal), samples with 10% (m/V) of Pluronic F127 and calcined samples at 1000°C by X-ray diffraction (XRD), Raman spectroscopy and scanning electron microscopy (SEM). Analyses by XRD of non-calcined samples showed that hydroxyapatite was obtained, in which the samples prepared at 0°C exhibited larger peaks attributed to lower crystallite sizes. For the calcined samples, both Raman spectroscopy and XRD exhibited hydroxyapatite for the syntheses at 37 and 90°C whereas the one prepared 90°C were identified as β-tricalcium phosphate (β-TCP). Morphological analysis by SEM indicated that the hydroxyapatite was sphere or rod agglomerates in mesoporous morphology for the nanocomposites prepared at 0 and 37°C, while the sample prepared at 90°C was nanospheres agglomerated into a smother matrix. After Pluronic F127 removal, samples fabricated at 0 and 37 °C exhibited coalescence of the nanostructures, whereas the sample synthesized at 90°C kept mesoporous. Calcined samples showed sintering and some rods structures.

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Eigler, Siegfried, Michael Enzelberger-Heim, Stefan Grimm, Philipp Hofmann, Wolfgang Kroener, Andreas Geworski, Christoph Dotzer et al. "Wet Chemical Synthesis of Graphene". Advanced Materials 25, n. 26 (24 maggio 2013): 3583–87. http://dx.doi.org/10.1002/adma.201300155.

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Selbach, Sverre M., Mari-Ann Einarsrud, Thomas Tybell e Tor Grande. "Synthesis of BiFeO3by Wet Chemical Methods". Journal of the American Ceramic Society 90, n. 11 (novembre 2007): 3430–34. http://dx.doi.org/10.1111/j.1551-2916.2007.01937.x.

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Ouhajji, Samia, Bas G. P. van Ravensteijn, Carla Fernández-Rico, Kanvaly S. Lacina, Albert P. Philipse e Andrei V. Petukhov. "Wet-Chemical Synthesis of Chiral Colloids". ACS Nano 12, n. 12 (14 novembre 2018): 12089–95. http://dx.doi.org/10.1021/acsnano.8b05065.

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Taylor, D. J., e H. M. Meyer. "Wet-chemical synthesis of zirconium oxyfluoride". Journal of Materials Science 40, n. 9-10 (maggio 2005): 2655–58. http://dx.doi.org/10.1007/s10853-005-2098-1.

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Liu, Lichun, Sang-Hoon Yoo, Sang A. Lee e Sungho Park. "Wet-Chemical Synthesis of Palladium Nanosprings". Nano Letters 11, n. 9 (14 settembre 2011): 3979–82. http://dx.doi.org/10.1021/nl202332x.

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Gaki, A., Th Perraki e G. Kakali. "Wet chemical synthesis of monocalcium aluminate". Journal of the European Ceramic Society 27, n. 2-3 (gennaio 2007): 1785–89. http://dx.doi.org/10.1016/j.jeurceramsoc.2006.05.006.

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Singh, Vartika S., C. P. Joshi e S. V. Moharil. "Wet chemical synthesis of LiBaF3 phosphor". Journal of Alloys and Compounds 579 (dicembre 2013): 165–68. http://dx.doi.org/10.1016/j.jallcom.2013.04.163.

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SINGH, AKANKSHA, CHANTAL KHAN MALEK e SULABHA K. KULKARNI. "DEVELOPMENT IN MICROREACTOR TECHNOLOGY FOR NANOPARTICLE SYNTHESIS". International Journal of Nanoscience 09, n. 01n02 (febbraio 2010): 93–112. http://dx.doi.org/10.1142/s0219581x10006557.

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Microreactor technology is a new concept of chemical synthesis for nanoparticle production. The "state of the art" in microreactor fabrication and its application to the synthesis of nanoparticles is reviewed. The microfluidic concepts, the materials and technologies for microreactor manufacture, with particular emphasis on polymers and microreplication techniques, and their application to the synthesis of various nanomaterials in microreactors are presented. The unique synthesis properties of various nanoparticles using a microfluidic process as well as broader impact in term of nanomaterials engineering, i.e., selectivity and monodispersity, reduced amount of chemicals, fast reaction, minimum cost, a better control of the process, minimum waste and reduced amounts of reaction byproducts and improved safety, are discussed in comparison with the traditional wet-chemical batch synthesis approach.

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Jain, Titoo, Qingxin Tang, Thomas Bjørnholm e Kasper Nørgaard. "Wet Chemical Synthesis of Soluble Gold Nanogaps". Accounts of Chemical Research 47, n. 1 (14 agosto 2013): 2–11. http://dx.doi.org/10.1021/ar3002848.

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Singh, Vartika S., e S. V. Moharil. "Wet-chemical synthesis and luminescence of KCeF4". Materials Today: Proceedings 26 (2020): 1046–48. http://dx.doi.org/10.1016/j.matpr.2020.02.208.

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Guha, P., S. Gorai, D. Ganguli e S. Chaudhuri. "Ammonia-mediated wet chemical synthesis of CuInS2". Materials Letters 57, n. 12 (marzo 2003): 1786–91. http://dx.doi.org/10.1016/s0167-577x(02)01069-8.

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Singh, Vartika S., C. P. Joshi, T. K. Gundu Rao e S. V. Moharil. "Wet chemical synthesis of KMgF 3 phosphors". Journal of Alloys and Compounds 657 (febbraio 2016): 848–54. http://dx.doi.org/10.1016/j.jallcom.2015.10.176.

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Singh, Vartika S., C. P. Joshi e S. V. Moharil. "ChemInform Abstract: Wet Chemical Synthesis of LiBaF3Phosphor." ChemInform 44, n. 47 (4 novembre 2013): no. http://dx.doi.org/10.1002/chin.201347199.

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Uhlmann, D. R., B. J. J. Zelinski, G. Teowee, J. M. Boulton e A. Koussa. "Wet chemical synthesis of bulk optical materials". Journal of Non-Crystalline Solids 129, n. 1-3 (marzo 1991): 76–92. http://dx.doi.org/10.1016/0022-3093(91)90082-h.

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Della Gaspera, Enrico. "Special Issue “Wet Chemical Synthesis of Functional Nanomaterials”". Nanomaterials 11, n. 4 (19 aprile 2021): 1044. http://dx.doi.org/10.3390/nano11041044.

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Abstract (sommario):

“Wet chemical synthesis, also called solution processing, represents an accessible, versatile, and powerful approach for synthesizing materials with excellent control of their structural, chemical, and physical properties” [...]

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Rao, Rameshwar, C. Shilpa Chakra e K. Venkateswara Rao. "Eco-Friendly Synthesis of Silver Nanoparticles Using Carica Papaya Extract for Anti Bacterial Applications". Advanced Materials Research 629 (dicembre 2012): 279–83. http://dx.doi.org/10.4028/www.scientific.net/amr.629.279.

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Nanobiotechnology emerged as integration of nanotechnology and biotechnology for developing bioactive, biosynthetic and eco -friendly technology for synthesis of nanomaterials. Nanostructures have great demand in areas such as chemistry, catalysis, electronics, energy, and medical applications. Metallic nano-particles are normally synthesized by wet chemical synthesis techniques using the toxic and inflammable chemicals. Present research work on preparation of silver nano-particles by green nano synthesis method and has advantages over conventional methods involving chemical agents which can cause environmental toxicity. The synthesis technique is a cost effective and environment friendly technique for green nano synthesis of silver nano-particles from varying concentrations of AgNO3 solution and extract of Carica papaya fruit of different concentrations which acts as reducing and capping agent. Characterizations has been done using UV–Vis absorption spectroscopy, XRD, particle size analyser and SEM with EDX. Antimicrobial activity was done using Escherichia coli and Pseudomonas.

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Srdic, Vladimir, Ruzica Djenadic, Marija Milanovic, Nikolina Pavlovic, Ivan Stijepovic, Ljubica Nikolic, Evagelia Moshopoulous, Konstantinos Giannakopoulos, Jan Dusza e Karel Maca. "Direct synthesis of nanocrystalline oxide powders by wet-chemical techniques". Processing and Application of Ceramics 4, n. 3 (2010): 127–34. http://dx.doi.org/10.2298/pac1003127s.

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In a recent period there is a great need for increasing the knowledge of tailoring the innovative procedures for the synthesis of electroceramic nanopowders and materials with improved quality for specific application. In order to produce electroceramics with desirable microstructure and properties, synthesis of stoichiometric, ultra-fine and agglomerate free powders with narrow size distributions is one of the most important steps. Within this scope, in the present paper we summarize our recent results on direct synthesis of some important perovskites and ferrites nanopowders by wet-chemical techniques.

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Salma, Kristine, Liga Berzina-Cimdina e Natalija Borodajenko. "Calcium phosphate bioceramics prepared from wet chemically precipitated powders". Processing and Application of Ceramics 4, n. 1 (2010): 45–51. http://dx.doi.org/10.2298/pac1001045s.

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In this work calcium phosphates were synthesized by modified wet chemical precipitation route. Contrary to the conventional chemical precipitation route calcium hydroxide was homogenized with planetary mill. Milling calcium oxide and water in planetary ball mill as a first step of synthesis provides a highly dispersed calcium hydroxide suspension. The aim of this work was to study the influence of main processing parameters of wet chemical precipitation synthesis product and to control the morphology, phase and functional group composition and, consequently, thermal stability and microstructure of calcium phosphate bioceramics after thermal treatment. The results showed that it is possible to obtain calcium phosphates with different and reproducible phase compositions after thermal processing (hydroxyapatite [HAp], ?-tricalcium phosphate [?-TCP] and HAp/?-TCP) by modified wet-chemical precipitation route. The ?-TCP phase content in sintered bioceramics samples is found to be highly dependent on the changes in technological parameters and it can be controlled with ending pH, synthesis temperature and thermal treatment. Pure, crystalline and highly thermally stable (up to 1300?C) HAp bioceramics with homogenous grainy microstructure, grain size up to 200-250 nm and high open porosity can be successfully obtained by powder synthesized at elevated synthesis temperature of 70?C and stabilizing ending pH at 9. .

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Sokolova, Marina, Andris Putnins, Imants Kreicbergs e Janis Locs. "Scale-Up of Wet Precipitation Calcium Phosphate Synthesis". Key Engineering Materials 604 (marzo 2014): 216–19. http://dx.doi.org/10.4028/www.scientific.net/kem.604.216.

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Within current research calcium phosphates were synthesized by wet chemical precipitation method in laboratory and pilot scale reactor. The aim of this work was to study the influence of main technological parameters of wet chemical precipitation synthesis and scale-up of laboratory synthesis. The results showed that it is possible to obtain calcium phosphates with different and reproducible phase compositions such as hydroxyapatite (HAp), β-tricalcium phosphate (β-TCP) and biphasic calcium phosphates (HAp/β-TCP) in pilot scale reactor. Using the method developed it was possible to increase the product yield more than 30 times compared to formerly used laboratory scale method.

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Nakashima, Kouichi, Ichiro Fujii e Satoshi Wada. "Synthesis of BaZrO3 nanocrystals by wet chemical reaction". Transactions of the Materials Research Society of Japan 38, n. 1 (2013): 45–48. http://dx.doi.org/10.14723/tmrsj.38.45.

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LIU, Zhongxin. "Wet-chemical synthesis and characteristics of Au nanoshell". Science in China Series B 48, n. 5 (2005): 431. http://dx.doi.org/10.1360/042004-101.

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Chaki, Sunil H., M. P. Deshpande, J. P. Tailor, K. S. Mahato e M. D. Chaudhary. "Wet Chemical Synthesis and Characterization of MnS Nanoparticles". Advanced Materials Research 584 (ottobre 2012): 243–47. http://dx.doi.org/10.4028/www.scientific.net/amr.584.243.

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The manganese sulfide, MnS, is a wide bandgap (Eg = 3.1eV) diluted magnetic semiconductor belonging to the VIIB-VIA family with outstanding magneto-optical properties. The authors report the synthesis and characterization of MnS nanoparticles. The MnS nanoparticles were synthesized by simple wet chemical method at ambient temperature. Manganese acetate (C4H6MnO4.4H2O) was used as source for Mn+2 ions and thioacetamide (C2H5NS) was used as source for S-2 ions. The energy dispersive analysis of X-ray (EDAX) and X-ray diffraction (XRD) were used for stoichiometric and structural characterization of the synthesized nanoparticles respectively. The crystallite size calculated from XRD using Scherrer’s formula and Hall-Williamson relation came out to be of 6.81 nm and 5.27 nm respectively. The optical absorption spectra showed absorption edge at 325 nm corresponding to energy of 3.82 eV, which acknowledged the occurrence of blue shift. The photoluminescence spectra recorded for five different excitation wavelengths viz 250, 275, 280, 300 and 325 nm showed three emission peaks at 463 nm, 550 nm and 821 nm. The TEM and SEM analysis of the particles clearly shows the particles are spherical in shape. The selected area electron diffraction (SAED) pattern showed ring pattern, stating the nanoparticles to be polycrystalline. The obtained results are discussed in details.

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Ohashi, Masayoshi, Yasuo Iida e Hisashi Morikawa. "Preparation of CuAlO2 Films by Wet Chemical Synthesis". Journal of the American Ceramic Society 85, n. 1 (20 dicembre 2004): 270–72. http://dx.doi.org/10.1111/j.1151-2916.2002.tb00080.x.

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Samanta, Pijus Kanti, e Abhijit Saha. "Wet chemical synthesis of ZnO nanoflakes and photoluminescence". Optik 126, n. 23 (dicembre 2015): 3786–88. http://dx.doi.org/10.1016/j.ijleo.2015.07.157.

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Pfaff, G. "Wet chemical synthesis of BaSnO3 and Ba2SnO4 powders". Journal of the European Ceramic Society 12, n. 2 (gennaio 1993): 159–64. http://dx.doi.org/10.1016/0955-2219(93)90137-g.

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Wang, Shi-Wei, Xiao-Xian Huang e Jing-Kun Guo. "Wet chemical synthesis of ZrO2-SiO2 composite powders". Journal of the European Ceramic Society 16, n. 10 (gennaio 1996): 1057–61. http://dx.doi.org/10.1016/0955-2219(96)00035-0.

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Chaki, Sunil H., M. P. Deshpande, Devangini P. Trivedi, Jiten P. Tailor, Mahesh D. Chaudhary e Kanchan Mahato. "Wet chemical synthesis and characterization of SnS2 nanoparticles". Applied Nanoscience 3, n. 3 (27 aprile 2012): 189–95. http://dx.doi.org/10.1007/s13204-012-0123-7.

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Vázquez-Vázquez, C., S. Dosil-Caamaño e M. A. López-Quintela. "Synthesis of La1-xCaxMnO3±δby wet chemical routes". Acta Crystallographica Section A Foundations of Crystallography 56, s1 (25 agosto 2000): s383. http://dx.doi.org/10.1107/s0108767300028014.

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Caswell, K. K., Christopher M. Bender e Catherine J. Murphy. "Seedless, Surfactantless Wet Chemical Synthesis of Silver Nanowires". Nano Letters 3, n. 5 (maggio 2003): 667–69. http://dx.doi.org/10.1021/nl0341178.

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Wei, Qinglian, e Jin Mu. "Synthesis of CuInS2Nanocubes by a Wet Chemical Process". Journal of Dispersion Science and Technology 26, n. 5 (settembre 2005): 555–58. http://dx.doi.org/10.1081/dis-200057631.

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Yelten-Yilmaz, Azade, e Suat Yilmaz. "Wet chemical precipitation synthesis of hydroxyapatite (HA) powders". Ceramics International 44, n. 8 (giugno 2018): 9703–10. http://dx.doi.org/10.1016/j.ceramint.2018.02.201.

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Santos, L. P. S., E. R. Camargo, M. T. Fabbro, E. Longo e E. R. Leite. "Wet-chemical synthesis of magnesium niobate nanoparticles powders". Ceramics International 33, n. 7 (settembre 2007): 1205–9. http://dx.doi.org/10.1016/j.ceramint.2006.04.006.

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