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- W2376319259 abstract "Two types supported mesoporous SiO 2 membranes were prepared with organic silicon source (tetraethoxy silane, TEOS), inorganic silicon source (Na 2SiO 3) and template agents C 12 H 25 (CH 3) 3N +Cl - by combined sol-gel method with template technology. The membranes were characterized by SEM, TG, nitrogen absorption and gas permeability measurement. The results show that the two membranes are well formed and bonds formed between silicon source and template agents. Both crystalline phase and amorphous phase exist in the membranes prepared from TEOS, whose average pore size is 4.2 nm and the maximum organic decomposition temperature is 297 ℃. However, the membranes prepared from Na 2SiO 3 only have crystalline phase, with average pore size of 6.0 nm and the maximum organic decomposition temperature of 275 ℃. The gas permeability of the two membranes is controlled by Knudsen diffusion." @default.
- W2376319259 created "2016-06-24" @default.
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- W2376319259 date "2002-01-01" @default.
- W2376319259 modified "2023-09-23" @default.
- W2376319259 title "SUPPORTED MESOPOROUS SiO_2 MEMBRANES SYNTHESIZED BY SOL-GEL-TEMPLATE TECHNOLOGY" @default.
- W2376319259 hasPublicationYear "2002" @default.
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