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Preparation of silica-based inorganic-organic hybrid membrane via the sol-gel route
Alternative TitleJ. Sol-Gel Sci. Technol.
Zhang, GC; Chen, YF; Li, HY; Xie, YS
2000-12-01
Source PublicationJOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
ISSN0928-0707
Volume19Issue:1-3Pages:425-428
AbstractSilica-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.
KeywordSol-gel Inorganic-organic Hybrid Membrane Permeation Characterization
SubtypeArticle
WOS HeadingsScience & Technology ; Technology
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Indexed ByISTP ; SCI
Language英语
WOS Research AreaMaterials Science
WOS SubjectMaterials Science, Ceramics
WOS IDWOS:000166544900079
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Cited Times:10[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/6030
Collection研究所(批量导入)
AffiliationChinese 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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