Bibliografías temáticas / Anhydrous precursors

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Literatura académica sobre el tema "Anhydrous precursors"

Autor: Grafiati
Publicado: 1 de junio de 2024
Última modificación: 31 de julio de 2025

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Artículos de revistas sobre el tema "Anhydrous precursors"

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Feng, Guo, Wei Hui Jiang, Jian Min Liu, et al. "Low-Temperature Synthesis of Magnesium-Stabilized Aluminum Titanate Powder via Non-Hydrolytic Sol-Gel Method." Materials Science Forum 848 (March 2016): 319–23. http://dx.doi.org/10.4028/www.scientific.net/msf.848.319.

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Magnesium-stabilized aluminum titanate powder was prepared via non-hydrolytic sol-gel method using titanium tetrachloride and anhydrous aluminium chloride as precursors, anhydrous ethanol as the oxygen donor, magnesium powder, magnesium fluoride, magnesium ethoxide and anhydrous magnesium acetate as stabilizers. The effect of magnesium stabilizers on low temperature synthesis of aluminum titanate was investigated, and their role and mechanism in stabilizing aluminum titanate were also studied by XRD, FT-IR and thermal expansion dilatometer. The results show that introducing magnesium powder or
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Nagpal, Keshav, Erwan Rauwel, Elias Estephan, Maria Rosario Soares, and Protima Rauwel. "Significance of Hydroxyl Groups on the Optical Properties of ZnO Nanoparticles Combined with CNT and PEDOT:PSS." Nanomaterials 12, no. 19 (2022): 3546. http://dx.doi.org/10.3390/nano12193546.

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We report on the synthesis of ZnO nanoparticles and their hybrids consisting of carbon nanotubes (CNT) and polystyrene sulfonate (PEDOT:PSS). A non-aqueous sol–gel route along with hydrated and anhydrous acetate precursors were selected for their syntheses. Transmission electron microscopy (TEM) studies revealed their spherical shape with an average size of 5 nm. TEM also confirmed the successful synthesis of ZnO-CNT and ZnO-PEDOT:PSS hybrid nanocomposites. In fact, the choice of precursors has a direct influence on the chemical and optical properties of the ZnO-based nanomaterials. The ZnO na
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Bommers, Sebastian, and Hubert Schmidbaur. "Poly(trifluoromethanesulfonatosilyl)methanes - Precursors to Polysilylmethanes." Zeitschrift für Naturforschung B 49, no. 3 (1994): 337–39. http://dx.doi.org/10.1515/znb-1994-0308.

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AbstractA new and efficient synthetic route to di- and tri(silyl)methane is presented. Starting from bis- and tris(phenylsilyl)methane, bis- and tris(trifluoromethanesulfonatosilyl)methane can be obtained by Si-Ph cleavage with equivalent quantities of trifluoromethanesulfonic acid (triflic acid). Their reduction with lithium aluminium hydride yields di- and tri(silyl)methane. Substitution of the previously employed liquid anhydrous hydrogen bromide by triflic acid thus offers an experimentally more simple alternative with shorter reaction times and high selectivity.
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Purdy, Andrew P., and Clifford F. George. "Anhydrous Dithiocarbamates. Potential Precursors to Alkaline Earth Sulfide Materials." Main Group Chemistry 1, no. 2 (1996): 229–40. http://dx.doi.org/10.1080/13583149612331338465.

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Heckman, J. W., M. J. Kielszewski, D. T. A. Lamport, E. P. Muldoon, B. T. Terhune, and J. J. Willard. "Interspecific comparison of elutable cell wall extensin precursors by transmission electron microscopy." Proceedings, annual meeting, Electron Microscopy Society of America 44 (August 1986): 284–85. http://dx.doi.org/10.1017/s0424820100143043.

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In addition to cellulose microfibrils, the primary cell wall of many higher plants contains extensin, a class of hydroxyproline-rich glycoprotein (HRGP). Despite its predominately hydrophilic amino acid composition, most cell wall HRGP remains insoluble even after complete deglycosylation with anhydrous HF, suggesting a covalently linked macromolecular network. This led to the development of the "warp-weft" cell wall model, based on an extensin network ("weft") penetrated by cellulose microfibrils (the "warp")(FIG. 1). Extensin precursors elute rapidly from intact cells and cell wall preparati
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Jiang, Wei Hui, Yan Hui Yang, Qing Xia Zhu, and Jian Min Liu. "Iron-Zircon Pigments Prepared by Non-Hydrolytic Sol-Gel Method at Low Temperature." Advanced Materials Research 412 (November 2011): 223–26. http://dx.doi.org/10.4028/www.scientific.net/amr.412.223.

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ron-zircon pigment has been synthesized by non-hydrolytic sol-gel method using zirconium chloride and tetraethoxysilane as precursors, anhydrous ferric chloride as colorant, lithium fluoride as mineralizer and anhydrous ethanol as solvent. Iron-zircon pigment has been characterized by means of DTA-TG, XRD, Colorimeter and TEM. The results show that only a small fraction of iron is incorporated in the zircon crystal structure while the remaining iron cations are trapped within the zircon matrix. The iron-zircon with the red value (a*) of 20.64 can be synthesized at 700°C with the optimum Fe/Zr
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Bénard, Patricia, Jean Paul Auffrédic, and Daniel Louër. "High-temperature X-ray powder diffractometry of the decomposition of zirconium hydroxide nitrates." Powder Diffraction 8, no. 1 (1993): 39–46. http://dx.doi.org/10.1017/s0885715600017723.

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The decomposition reactions of two zirconium hydroxide nitrates Zr(OH)2(NO3)2·(4+x)H2O and α-Zr(OH)2 (NO3)2·(1+x)H2O (0≤x≤1) have been studied by thermogravimetric analysis and high-temperature X-ray powder diffractometry (HTXRD), in nitrogen gas environment. The decomposition reaction sequences were clearly displayed by the HTXRD technique. They are different for the two precursors, except the formation of amorphous zirconia at low temperature (200 °C) and crystalline zirconia at about 390 °C. Three modifications of Zr(OH)2(NO3)2·H2O (α,β,γ) were identified. Their X-ray powder diffraction pat
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Gilbert, Pupa U. P. A., Susannah M. Porter, Chang-Yu Sun, et al. "Biomineralization by particle attachment in early animals." Proceedings of the National Academy of Sciences 116, no. 36 (2019): 17659–65. http://dx.doi.org/10.1073/pnas.1902273116.

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Crystallization by particle attachment (CPA) of amorphous precursors has been demonstrated in modern biomineralized skeletons across a broad phylogenetic range of animals. Precisely the same precursors, hydrated (ACC-H2O) and anhydrous calcium carbonate (ACC), have been observed spectromicroscopically in echinoderms, mollusks, and cnidarians, phyla drawn from the 3 major clades of eumetazoans. Scanning electron microscopy (SEM) here also shows evidence of CPA in tunicate chordates. This is surprising, as species in these clades have no common ancestor that formed a mineralized skeleton and app
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Yosi, Kusuma Eriwati, Arsista Dede, Triaminingsih Siti, and Sunarso. "Effect of CaSO4 Dissolution-Precipitation Time on Formation of Porous Carbonate Apatite as Bone Replacement Material." Journal of Biomimetics, Biomaterials and Biomedical Engineering 44 (February 2020): 83–90. http://dx.doi.org/10.4028/www.scientific.net/jbbbe.44.83.

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Introduction: Carbonate apatite type B (C-Ap) has been used as a bone replacement material because of its osteoconductive properties. Clinically, the pores formed in bone replacement material aid in cell mobility and nutrient supply, thereby increasing the bone regeneration ability. CO32- ions found in this material are useful for maintaining a stable physiological environment in the bone in order for it to be easily absorbed by osteoclasts. Porous C-Ap type B is formed using the dissolution–precipitation method by immersing porous anhydrous CaSO4 in a mixture of carbonate and phosphate soluti
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Nie, Xiaobo, and Yanming Chen. "Observation of Dominant Nuclei and Magic-Sized CdS Nanoparticles in a Single-Phase System." Journal of Nanoscience and Nanotechnology 21, no. 12 (2021): 5987–92. http://dx.doi.org/10.1166/jnn.2021.19504.

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Cadmium sulfide nanoparticles (CdS NPs) were synthesized by using cadmium acetate and thiourea as precursors and sodium oleate as the surfactant under different cadmium acetate concentrations in anhydrous ethanol. Cadmium (Cd) precursor concentration greatly affected the nucleation-growth of CdS NPs. In extremely dilute solution with a Cd precursor concentration of 0.1 mmol · L−1, an overlapped nucleation and growth corresponding to two pronounced absorption peaks at 310 nm and 350 nm, respectively, was observed. Unparalleled nucleation was dominant within very long reaction time until 10 hour
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Tesis sobre el tema "Anhydrous precursors"

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Purohit, Bhagyesh. "Precursors-guided synthesis of upconverting nanomaterials for near-infrared driven photocatalysis." Electronic Thesis or Diss., Lyon, 2021. https://n2t.net/ark:/47881/m6sn08q4.

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L'utilisation de l'énergie solaire pour résoudre des problèmes environnementaux tels que la détoxification de l'eau, la purification de l'air et la production d'hydrogène a suscité un grand intérêt de la part de la communauté scientifique au cours des deux dernières décennies. La photocatalyse solaire est une piste intéressante pour cibler toutes ces questions environnementales. Actuellement, les technologies ne permettent pas encore d'utiliser efficacement une partie importante du spectre solaire, à savoir l'infrarouge, qui correspond à près de ~48 % du spectre solaire total. Cette thèse vise
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Capítulos de libros sobre el tema "Anhydrous precursors"

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Khan, Khalid Mohammed, Shahnaz Perveen, and Wolfgang Voelter. "Anhydro Sugars: Useful Tools for Chiral Syntheses of Heterocycles." In Heterocycles from Carbohydrate Precursors. Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/7081_2007_078.

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Actas de conferencias sobre el tema "Anhydrous precursors"

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Zhang, Wenqi, Liuying Huang, Aidong Li, Qiyue Shao, and Di Wu. "Properties of Hf0.7Zr0.3O2 thin films chemical vapor deposited using a single-source precursor of anhydrous HfxZr1−x(NO34 precursors." In 2010 International Symposium on Next-Generation Electronics (ISNE). IEEE, 2010. http://dx.doi.org/10.1109/isne.2010.5669199.

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Noma, Satoshi, Koichi Kawahara, Yukari Sadamura, Narimasa Yoshinaga, Hiromasa Inoue, and Ikuro Maruyama. "1,5-Anhydro-D-Fructose, A Precursor Of 1,5-Anhydroglucitol, Attenuates Lipopolysaccharides (LPS) Induced Lethal Endotoxemia And Acute Lung Injury By Supressing HMGB1 And TNF-Alpha." In American Thoracic Society 2011 International Conference, May 13-18, 2011 • Denver Colorado. American Thoracic Society, 2011. http://dx.doi.org/10.1164/ajrccm-conference.2011.183.1_meetingabstracts.a2903.

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