Monodisperse spherical silica

It can now be said that the microemulsion-mediated silicon alkoxide sol-gel process has come of age. The ability to form monodisperse spherical silica particles (20-39) and monolithic gels (40-53) by this method has been amply demonstrated. Recipes are available to prepare materials with predetermined characteristics, especially particle size and polydispersity. Potential applications of these microemulsion-derived... 

Sanchez has shown no ditferential x—y shrinkage during sintering for tape casts of monodisperse spherical silica powders [38],... 

SYNTHESIS AND DEHUMIDIFICATION BEHAVIORS OF MONODISPERSE SPHERICAL SILICA GELS WITH DIFFERENT PORE AND CHEMICAL... 

In the present study, monodisperse spherical silica gels were prepared by aging a monodisperse spherical silica gel precursor in different basic conditions, and then the effect of the basic strength in aging process on the pore and chemical structures were investigated. 

The Mainz group, specialised in chromatography, developed a reproducible and rugged synthesis of monodispersed, spherical silica particles that exhibit mesoporosity. 

Nishikawa, S. and Matijevic, E., Preparation of monodispersed spherical silica-alumina particles by hydrolysis of mixed alkoxides,/. Colloid Interf. Sci., 165, 141, 1994. 

Kosmulski, M. et al., Zeta potentials of monodispersed, spherical silica particles in mixed solvents as a function of cesium chloride concentration. Colloids Sutf. A, 162, 37, 2000. 

S. Nishikawa and E. Matijevic Preparation of Uniform Monodispersed Spherical Silica-Alumina Particles by Hydrolysis of Mixed Alkoxides. J. Colloid Interface Sci., 165, 141-147 (1994). 

An elegant method proposed by Stober et al. [61] for the preparation of monodisperse spherical silica particles with controlled size comprises the hydrolysis and condensation of aUcoxysilanes in mixtures of ammonia, water, and a lower alcohol. The reactions involved can be represented by ... 

Hiroshi Suzuki, Shigeyuki Takagi, Hideki Morimitsu, and Shin-ichi Hirano Microstructure control of porous silica glass with monodispersed spherical silica particles, J. Ceram. Soc. Jpn., 100 (1992) 284-287... 

Yoldas B.E. Alumina sol preparation from alkoxides. Am. Ceram. Soc. Bull. 1975 54 289-290 Yoshida M., Lai M., Kumar N.D., Prasad P.N. Ti02 nano-particle-dispersed polyimide composite optical waveguide materials through reverse micelles. J. Mater. Sd. 1997 32 4047-4051 Yoshizawa K., Sugoh Y., Ochi Y. Controlled growth of monodispersed spherical silica by a new synthetic process. In Science ofCeramics Vol. 14, D. Taylor, ed. Stoke-on-Trent, UK The Institute of Ceramics, 1988... 

Yoshizawa K., Sugoh Y., Ochi Y. Controlled growth of monodispersed spherical silica by a new synthetic process. In Science of Ceramics, E. Taylor, ed. The Institute of Ceramics, Shelton, 1988, pp. 125-131... 

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