Preparation of silica-based inorganic-organic hybrid membrane via the sol-gel route

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	Preparation of silica-based inorganic-organic hybrid membrane via the sol-gel route
Alternative Title	J. Sol-Gel Sci. Technol.
	Zhang, GC; Chen, YF; Li, HY; Xie, YS
	2000-12-01
Source Publication	JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
ISSN	0928-0707
Volume	19 Issue:1-3 Pages:425-428
Abstract	Silica-based inorganic-organic hybrid membranes have been prepared on porous alpha -Al2O3 substrate (pore size, 2 mum) using tetraethoxysilane (TEOS) and phenyltrimethoxysilane (PTMOS) as precursors. The effects of sol synthesis conditions on the processing and performance of deposited hybrid layers were observed. The thickness of the hybrid layers after three deposition cycles is about 2 mum, estimated from their cross-section SEM micrographs. The gas permselectivity of the hybrid membrane was characterized by O-2/N-2, CO2/N-2, and CO2/O-2 mixing gases, which was mainly governed by the surface diffusion at lower pressures and Knudson diffusion at higher pressures. The introduction of phenyl groups can not only improve the selectivity of O-2/N-2 and CO2/N-2, but also densify the membrane network.; Silica-based inorganic-organic hybrid membranes have been prepared on porous alpha -Al2O3 substrate (pore size, 2 mum) using tetraethoxysilane (TEOS) and phenyltrimethoxysilane (PTMOS) as precursors. The effects of sol synthesis conditions on the processing and performance of deposited hybrid layers were observed. The thickness of the hybrid layers after three deposition cycles is about 2 mum, estimated from their cross-section SEM micrographs. The gas permselectivity of the hybrid membrane was characterized by O-2/N-2, CO2/N-2, and CO2/O-2 mixing gases, which was mainly governed by the surface diffusion at lower pressures and Knudson diffusion at higher pressures. The introduction of phenyl groups can not only improve the selectivity of O-2/N-2 and CO2/N-2, but also densify the membrane network.
Keyword	Sol-gel Inorganic-organic Hybrid Membrane Permeation Characterization
Subtype	Article
WOS Headings	Science & Technology ; Technology
URL	查看原文
Indexed By	ISTP ; SCI
Language	英语
WOS Research Area	Materials Science
WOS Subject	Materials Science, Ceramics
WOS ID	WOS:000166544900079
Citation statistics	Cited Times:10[WOS] [WOS Record] [Related Records in WOS]
Document Type	期刊论文
Version	出版稿
Identifier	http://ir.ipe.ac.cn/handle/122111/6030
Collection	研究所（批量导入）
Affiliation	Chinese Acad Sci, Inst Chem Met, Beijing 100080, Peoples R China
Recommended Citation GB/T 7714	Zhang, GC,Chen, YF,Li, HY,et al. Preparation of silica-based inorganic-organic hybrid membrane via the sol-gel route[J]. JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY,2000,19(1-3):425-428.
APA	Zhang, GC,Chen, YF,Li, HY,&Xie, YS.(2000).Preparation of silica-based inorganic-organic hybrid membrane via the sol-gel route.JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY,19(1-3),425-428.
MLA	Zhang, GC,et al."Preparation of silica-based inorganic-organic hybrid membrane via the sol-gel route".JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY 19.1-3(2000):425-428.

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