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题名: A high CO2 permselective mesoporous silica/carbon composite membrane for CO2 separation
作者: Li, Lin1;  Wang, Tonghua1;  Liu, Qingling1;  Cao, Yiming2;  Qiu, Jieshan1
刊名: CARBON
发表日期: 2012-11-01
DOI: 10.1016/j.carbon.2012.06.060
卷: 50, 期:14, 页:5186-5195
收录类别: SCI
文章类型: Article
类目[WOS]: Chemistry, Physical ;  Materials Science, Multidisciplinary
研究领域[WOS]: Chemistry ;  Materials Science
英文摘要: Ordered mesoporous silica/carbon composite membranes with a high CO2 permeability and selectivity were designed and prepared by incorporating SBA-15 or MCM-48 particles into polymeric precursors followed by heat treatment. The as-made composite membranes were characterized by high-resolution transmission electron microscopy (HRTEM), X-ray diffraction (XRD) and N-2 adsorption, of which the gas separation performance in terms of gas permeability and selectivity were evaluated using the single gas (CO2, N-2, CH4) and gas mixtures (CO2/N-2 and CO2/CH4, 50/50 mol.%). In comparison to the pure carbon membranes and microporous zeolite/C composite membranes, the as-made mesoporous silica/C composite membranes, and the MCM-48/C composite membrane in particular, exhibit an outstanding CO2 gas permeability and selectivity for the separation of CO2/CH4 and CO2/N-2 gas pairs owing to the smaller gas diffusive resistance through the membrane and additional gas permeation channels created by the incorporation of mesoporous silicas in carbon membrane matrix. The channel shape and dimension of mesoporous silicas are key parameters for governing the gas permeability of the as-made composite membranes. The gas separation mechanism and the functions of porous materials incorporated inside the composite membranes are addressed. (C) 2012 Elsevier Ltd. All rights reserved.
关键词[WOS]: MOLECULAR-SIEVE MEMBRANES ;  NANOPOROUS CARBON MEMBRANES ;  ETHER SULFONE KETONE) ;  GAS SEPARATION ;  HIGH-PERFORMANCE ;  POLYMERIC MEMBRANES ;  SILICA ;  TRANSPORT ;  PURIFICATION ;  FABRICATION
语种: 英语
WOS记录号: WOS:000308898900023
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/142844
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Dalian Univ Technol, Sch Chem Engn, Carbon Res Lab, State Key Lab Fine Chem, Dalian 116024, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China

Recommended Citation:
Li, Lin,Wang, Tonghua,Liu, Qingling,et al. A high CO2 permselective mesoporous silica/carbon composite membrane for CO2 separation[J]. CARBON,2012,50(14):5186-5195.
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