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题名: Nafion/polyvinylidene fluoride blend membranes with improved ion selectivity for vanadium redox flow battery application
作者: Mai, Zhensheng1, 2;  Zhang, Huamin1;  Li, Xianfeng1;  Xiao, Shaohua1, 2;  Zhang, Hongzhang1, 2
关键词: Polymer blends ;  Ion exchange membranes ;  Vanadium redox flow battery
刊名: JOURNAL OF POWER SOURCES
发表日期: 2011-07-01
DOI: 10.1016/j.jpowsour.2011.02.048
卷: 196, 期:13, 页:5737-5741
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Electrochemistry ;  Energy & Fuels
研究领域[WOS]: Electrochemistry ;  Energy & Fuels
英文摘要: Nafion/PVDF blends are employed to prepare the ion exchange membranes for vanadium redox flow battery (VRB) application for the first time. The addition of the highly crystalline and hydrophobic PVDF effectively confines the swelling behavior of Nafion. In VRB single cell test, the Nafion/PVDF binary membranes exhibit higher columbic efficiency than recast Nafion at various current densities. The blend membrane with 20 wt% of PVDF (N(0.8)P(0.2)) shows energy efficiency of 85% at 80 mA cm(-2), which is superior to that of recast Nafion. N(0.8)P(0.2) membrane also possesses twice longer duration in OCV decay test and much lower permeation of VO(2+) compared with recast Nafion. These results indicate that the addition of PVDF is a simple and efficient way to improve the ion selectivity of Nafion, and the polymer blends with optimized mass fraction of PVDF show good potential for VRB application. (C) 2011 Elsevier B.V. All rights reserved.
关键词[WOS]: METHANOL FUEL-CELLS ;  POLY(VINYLIDENE FLUORIDE) ;  NAFION MEMBRANE ;  PERFLUOROSULFONATE IONOMER ;  MISCIBILITY ;  PERFORMANCE
语种: 英语
WOS记录号: WOS:000291144000049
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/142727
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, PEMFC Key Mat & Technol Lab, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100039, Peoples R China

Recommended Citation:
Mai, Zhensheng,Zhang, Huamin,Li, Xianfeng,et al. Nafion/polyvinylidene fluoride blend membranes with improved ion selectivity for vanadium redox flow battery application[J]. JOURNAL OF POWER SOURCES,2011,196(13):5737-5741.
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