Effects of solvent on TEOS hydrolysis kinetics and silica particle size under basic conditions
作者： Ozge Malay , Iskender Yilgor , Yusuf Z. Menceloglu
DOI: 10.1007/S10971-013-3088-4
关键词: Dynamic light scattering 、 Methanol 、 Solvent effects 、 Hydrolysis 、 Particle size 、 Tetraethyl orthosilicate 、 Dispersity 、 Solvent 、 Inorganic chemistry 、 Chemistry 、 Materials Chemistry 、 Electronic, Optical and Magnetic Materials 、 General chemistry 、 Condensed matter physics 、 Biomaterials 、 Ceramics and Composites
摘要: In-situ liquid-state 29Si nuclear magnetic resonance was used to investigate the temporal concentration changes during ammonia-catalyzed initial hydrolysis of tetraethyl orthosilicate in different solvents (methanol, ethanol, n-propanol, iso-propanol and n-butanol). Dynamic light scattering employed monitor simultaneous average diameter silica particles atomic force microscopy image within this time frame. Solvent effects on kinetics, size polydispersity were discussed terms polarity hydrogen-bonding characteristics solvents. Initial rate particle increased with molecular weight primary alcohols. In comparison, lower larger obtained secondary alcohol. Exceptionally, reactions methanol exhibited highest smallest size. Ultimately, our investigation elaborated, hence confirmed, influences chemical structure nature solvent formation growth under applied conditions.
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Sridhar Sadasivan, Anil K. Dubey, Yuzhou Li, Don H. Rasmussen, Alcoholic Solvent Effect on Silica Synthesis—NMR and DLS Investigation Journal of Sol-Gel Science and Technology. ,vol. 12, pp. 5- 14 ,(1998) , 10.1023/A:1008659708390
C. Jeffrey Brinker, George W. Scherer, Sol-Gel Science: The Physics and Chemistry of Sol-Gel Processing ,(1990)
K.C. Chen, T. Tsuchiya, J.D. Mackenzie, Sol-gel processing of silica: I. The role of the starting compounds Journal of Non-crystalline Solids. ,vol. 81, pp. 227- 237 ,(1986) , 10.1016/0022-3093(86)90272-3
Allan F. M. Barton, CRC Handbook of Solubility Parameters and Other Cohesion Parameters Barton, A.F.M. <https://researchrepository.murdoch.edu.au/view/author/Barton, Allan.html> (2017) CRC Handbook of Solubility Parameters and Other Cohesion Parameters. Routledge as part of the Taylor and Francis group, New York.. ,(1983)
Karl Bredereck, Franz Effenberger, Michael Tretter, Preparation and characterization of silica aquasols joint international conference on information sciences. ,vol. 360, pp. 408- 414 ,(2011) , 10.1016/J.JCIS.2011.04.062
Hacène Boukari, J. S. Lin, M. T. Harris, Probing the Dynamics of the Silica Nanostructure Formation and Growth by SAXS Chemistry of Materials. ,vol. 9, pp. 2376- 2384 ,(1997) , 10.1021/CM9702878
Beibei Zhao, Caihua Tian, Yan Zhang, Tao Tang, Fengyun Wang, Size control of monodisperse nonporous silica particles by seed particle growth Particuology. ,vol. 9, pp. 314- 317 ,(2011) , 10.1016/J.PARTIC.2010.07.028
Henan Zhang, Yu Zhao, Daniel L. Akins, Synthesis and new structure shaping mechanism of silica particles formed at high pH Journal of Solid State Chemistry. ,vol. 194, pp. 277- 281 ,(2012) , 10.1016/J.JSSC.2012.05.031
T.N.M. Bernards, M.J.C.H. Janssen, M.J. van Bommel, Influence of butanol on the hydrolysis-condensation behaviour of TEOS Journal of Non-crystalline Solids. ,vol. 168, pp. 201- 212 ,(1994) , 10.1016/0022-3093(94)90331-X
Yao Xu, Ruili Liu, Dong Wu, Yuhan Sun, Hongchang Gao, Hanzhen Yuan, Feng Deng, Ammonia-catalyzed hydrolysis kinetics of mixture of tetraethoxysilane with methyltriethoxysilane by 29Si NMR Journal of Non-crystalline Solids. ,vol. 351, pp. 2403- 2413 ,(2005) , 10.1016/J.JNONCRYSOL.2005.07.003