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题名: Effect of Hydrogen Reduction of Silver Ions on the Performance and Structure of New Solid Polymer Electrolyte PEI/Pebax2533/AgBF4 Composite Membranes
作者: Wang Yanbei1;  Ren Jizhong1;  Li Hui1;  Deng Maicun1
关键词: solid polymer electrolyte membrane ;  hydrogen reduction of silver ions ;  facilitated transport ;  olefin/paraffin separation
刊名: CHINESE JOURNAL OF CHEMICAL ENGINEERING
发表日期: 2013-06-01
DOI: 10.1016/S1004-9541(13)60515-7
卷: 21, 期:6, 页:683-690
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Technology
类目[WOS]: Engineering, Chemical
研究领域[WOS]: Engineering
英文摘要: In this paper, the effect of hydrogen reduction of silver ions on the performance and structure of new solid polymer electrolyte polyetherimide (PEI)/Pebax2533 (Polynylon12/tetramethylene oxide block copolymer, PA12-PTMO)/AgBF4 composite membranes is investigated. For PEI/Pebax2533/AgBF4 composite membranes prepared with different AgBF4 concentration, the permeances of propylene and ethylene increase with the increase of AgBF4 concentration due to the carrier-facilitated transport, resulting in a high selectivity. But for propylene/propane mixture, the mixed-gas selectivity is lower than its ideal selectivity. The hydrogen reduction strongly influences the membrane performance, which causes the decrease of propylene permeance and the increase of propane permeance. With the increase of hydrogen reduction time, the membranes show a clearly color change from white to brown, yielding a great selectivity loss. The data of X-ray diffraction and FT-IR prove that silver ions are reduced to Ag-0 after hydrogen reduction, and aggregated on the surface of PEI/Pebax2533/AgBF4 composite membranes.
关键词[WOS]: OLEFIN/PARAFFIN SEPARATION ;  FACILITATED TRANSPORT ;  ETHYLENE ;  OLEFIN ;  SALTS
语种: 英语
WOS记录号: WOS:000322510200013
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/137701
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.Chinese Acad Sci, Dalian Inst Chem Phys, Natl Engn Res Ctr Membrane Technol, Dalian 116023, Peoples R China

Recommended Citation:
Wang Yanbei,Ren Jizhong,Li Hui,et al. Effect of Hydrogen Reduction of Silver Ions on the Performance and Structure of New Solid Polymer Electrolyte PEI/Pebax2533/AgBF4 Composite Membranes[J]. CHINESE JOURNAL OF CHEMICAL ENGINEERING,2013,21(6):683-690.
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