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Microstructure and Pore Size Control of Silica Membrane for Gas Separation at Elevated Temperatures  

Lee Kew-Ho (Membranes and Separation Research Center, Korea Research Institute of Chemical Technology (KRICT))
Sea Bongkuk (Membranes and Separation Research Center, Korea Research Institute of Chemical Technology (KRICT))
Lee Dong-Wook (Membranes and Separation Research Center, Korea Research Institute of Chemical Technology (KRICT))
Publication Information
Korean Membrane Journal / v.7, no.1, 2005 , pp. 42-50 More about this Journal
Abstract
Among ceramic membranes developed to date, amorphous silica membranes are attractive for gas separation at elevated temperatures. Most of the silica membranes can be formed on a porous support by sol-gel or chemical vapor deposition (CVD) process. To improve gas permselectivity of the membrane, well-controlled pores having desired size and chemical affinity between permeates and membrane become important factors in the preparation of membranes. In this article, we review the literature and introduce our technologies on the microstructure to be solved and pore size control of silica membranes using sol-gel and CVD methods.
Keywords
membrane separation; gas permeation; silica membrane; microstructure and pore size control;
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Times Cited By KSCI : 1  (Citation Analysis)
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