- Cao, G. Z. and Lu, Y. F. and Delattre, L. and Brinker, C. J. and Lopez, G. P., Amorphous silica molecular sieving membranes by sol-gel processing,
ADVANCED MATERIALS, vol. 8 no. 7
pp. 588--& .
(last updated on 2010/02/08)
Communication: Microporous ceramics and ceramic membranes have many potential applications, for example, in the chemical, environmental, energy conversion, and automotive industries. An organic template approach using sol-gel processing is described by which microporous amorphous silica is synthesized. It is shown that the very narrow pore size distribution is comparable to that of the zeolite ZSM-5 and that the membranes have ideal gas separation factors at least two orders of magnitude larger than those expected for a Knudsen diffusion separation mechanism.