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题名: Preparation and characterization of radiation-grafted poly (tetrafluoroethylene-co-perfluoropropyl vinyl ether) membranes for alkaline anion-exchange membrane fuel cells
作者: Liu, He1, 2;  Yang, Shaohua1;  Wang, Suli1;  Fang, Jun3;  Jiang, Luhua1;  Sun, Gongquan1
关键词: Alkaline anion exchange membrane ;  Radiation grafting ;  Ionic conductivity ;  Fuel cell
刊名: JOURNAL OF MEMBRANE SCIENCE
发表日期: 2011-03-01
DOI: 10.1016/j.memsci.2010.12.002
卷: 369, 期:1-2, 页:277-283
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Technology ;  Physical Sciences
类目[WOS]: Engineering, Chemical ;  Polymer Science
研究领域[WOS]: Engineering ;  Polymer Science
英文摘要: Novel alkaline anion-exchange membranes (AAEMs) were synthesized by graft copolymerization of vinylbenzyl chloride onto pre-irradiated poly (tetrafluoroethylene-co-perfluoropropyl vinyl ether) film, followed by quaternization and alkalization. Two kinds of radiation modes, continuous radiation and dis-continuous radiation (with 15 min break in each hour's radiation), were conducted to the PFA films. The structure of the AAEMs was characterized by Fourier transform infrared (FT-IR). The performances of the AAEMs, including ion exchange capacity (IEC), ionic conductivity, water uptake (WU) and methanol permeability, were investigated systematically. The results showed that the degree of grafting of the film prepared by continuous irradiation is higher than the one prepared by discontinuous irradiation, which results in higher IEC, WU and ionic conductivity. The continuously irradiated membrane exhibited a maximum ionic conductivity of 0.05 S cm(-1) at 60 degrees C. A maximum power density of 16 mW cm(-2) for a direct methanol single cell was obtained at 60 degrees C with the continuously irradiated membrane as the electrolyte. MnO(2)/C and PtRu/C as the cathode and anode electrocatalysts, respectively. This result indicates that the direct alcohol alkaline anion-exchange membrane fuel cell is a promising system with further improvement on AAEMs. Crown Copyright (C) 2010 Published by Elsevier B.V. All rights reserved.
关键词[WOS]: SULFONIC-ACID ;  ELECTROLYTE ;  CONDUCTIVITY ;  PERFORMANCE ;  HYDROCARBON ;  FILMS
语种: 英语
WOS记录号: WOS:000287832200033
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/142375
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, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China
3.Xiamen Univ, Coll Chem, Dept Chem, Xiamen 361005, Peoples R China

Recommended Citation:
Liu, He,Yang, Shaohua,Wang, Suli,et al. Preparation and characterization of radiation-grafted poly (tetrafluoroethylene-co-perfluoropropyl vinyl ether) membranes for alkaline anion-exchange membrane fuel cells[J]. JOURNAL OF MEMBRANE SCIENCE,2011,369(1-2):277-283.
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