介电谱
直接甲醇燃料电池
阳极
甲醇
电化学
电阻抗
材料科学
电导率
等效电路
分析化学(期刊)
甲醇燃料
水溶液
化学工程
化学
电极
电气工程
色谱法
电压
工程类
有机化学
物理化学
作者
Elena Giordano,Andrea Zaffora,Leonardo Iannucci,Monica Santamaria,Sabrina Grassini
标识
DOI:10.1109/i2mtc53148.2023.10176090
摘要
This paper analyzes and discusses the performance of a DMFC as a function of methanol aqueous solution concentration fed at the anode, using the Electrochemical Impedance Spectroscopy (EIS). Impedance data obtained were analyzed through the development of an equivalent circuit model. Electrochemical impedance spectroscopy was used to estimate the membrane conductivity and to model the electrochemical behavior of electrodic reactions inside the fuel cell, revealing a worse overall performance by increasing methanol concentration at the anode.
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