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题名: Preparation and gas separation properties of poly(furfuryl alcohol)-based C/CMS composite membranes
作者: Song, Chengwen1, 3;  Wang, Tonghua1;  Wang, Xiuyue1;  Qiu, Jieshan1;  Cao, Yiming2
通讯作者: Tonghua Wang
关键词: gas separation ;  carbon membrane ;  preparation ;  composite ;  poly(furfuryl alcohol)
刊名: SEPARATION AND PURIFICATION TECHNOLOGY
发表日期: 2008-01-15
DOI: 10.1016/j.seppur.2007.05.019
卷: 58, 期:3, 页:412-418
收录类别: SCI
文章类型: Article
部门归属: 9
项目归属: 905
产权排名: 2;5
WOS标题词: Science & Technology ;  Technology
类目[WOS]: Engineering, Chemical
研究领域[WOS]: Engineering
英文摘要: C/CMS composite membranes from poly(furfuryl alcohol) for gas separation were successfully prepared, in which porous coal-based carbon tubes with an average pore diameter of 0.11 mu m and a porosity of 40.3% were used as support. The tubular support was coated using viscous poly(furfuryl alcohol) liquid to form an organic layer that was transformed into a thin top layer of carbon membrane after pyrolysis. The gas separation performance of the as-prepared carbon membranes was evaluated at 25, 60 and 80 degrees C by molecular probe method. The morphology and structure changes of C/CMS composite membranes during pyrolysis were examined using SEM, HRTEM, FTIR and XRD techniques. The results show that C/CMS composite membranes with uniform and defect-free thin top layer can be made by one-step coating with viscous poly(furfuryl alcohol) liquid and following pyrolysis. The as-prepared C/CMS composite membranes have excellent gas separation properties for gas pairs such as H-2/N-2, CO2/N-2, O-2/N-2, and CO2/CH, and the highest permselectivity at 25 degrees C can reach up to 465.0, 58.8, 13.2 and 160.5, respectively. It has been found that the permeabilities of the composite membranes decrease while the permselectivities increase as the pyrolysis temperature increases from 300 to 700 degrees C. During pyrolysis, the polymeric structure of poly(furfuryl alcohol) has been transformed into an amorphous turbostratic carbon structure with ultramicropores. For the as-prepared C/CMS composite membranes, the gas separation performance in this work exhibits great competition respect to other carbon membranes reported. These clearly indicate that the C/CMS composite membranes prepared from furfuryl alcohol polymers is a promising membrane for gas separation. (c) 2007 Elsevier B.V. All rights reserved.
关键词[WOS]: CARBON MOLECULAR-SIEVE ;  FORMALDEHYDE NOVOLAC RESIN ;  FURFURYL ALCOHOL ;  TRANSPORT ;  PERMEATION ;  POLYIMIDE ;  DEPOSITION ;  PYROLYSIS ;  EVOLUTION ;  DIOXIDE
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000252762800015
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/99545
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, Dept Mat Sci & Chem Engn, Carbon Res Lab,State Key Lab Fine Chem, Dalian 116012, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
3.Dalian Maritime Univ, Sch Environm Sci & Engn, Environm Informat Inst, Dalian 116026, Peoples R China

Recommended Citation:
Song, Chengwen,Wang, Tonghua,Wang, Xiuyue,et al. Preparation and gas separation properties of poly(furfuryl alcohol)-based C/CMS composite membranes[J]. SEPARATION AND PURIFICATION TECHNOLOGY,2008,58(3):412-418.
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