Nafion公司
直接甲醇燃料电池
膜
甲醇
聚电解质
壳聚糖
化学工程
结晶度
电导率
高分子化学
质子交换膜燃料电池
材料科学
化学
聚合物
复合材料
有机化学
电化学
物理化学
电极
阳极
生物化学
工程类
作者
Amirsalar Bagherzadeh,Mahdi Tohidian,Yeganeh Mollamohammadi Sadafi,Amirsaeed Shamsabadi,Hesam Makki
出处
期刊:Journal of The Electrochemical Society
[The Electrochemical Society]
日期:2023-08-01
卷期号:170 (8): 084504-084504
被引量:5
标识
DOI:10.1149/1945-7111/aceb94
摘要
In this study, polyelectrolyte membranes (PEMs) were fabricated by blending chitosan and Nafion with various compositions for direct methanol fuel cell (DMFC) application. The incorporation of Nafion caused increasing the glass transition temperature (T g ), as well as decreasing the crystallinity of chitosan based matrix, which has roots in the attractive interaction between –SO 3 H groups in Nafion and –NH 2 groups in chitosan structure. In addition, the proton conductivity, as well as the methanol permeability of the studied membranes increased with an increase in the loading weight of Nafion. The selectivity parameter (the ratio of proton conductivity to methanol permeability) of the membrane containing 25 wt% of Nafion was comparable to neat Nafion. In parallel, the results of the DMFC performance test showed a maximum power density of 39 mW cm −2 at 319 mA cm −2 current density (at 5 M methanol concentration and 75 °C) for the mentioned membrane which is near to that for recast Nafion. The results showed that the chitosan/Nafion complex can be considered as a PEM for DMFC application.
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