Study of Methanol Concentration Effect in Direct Methanol Fuel Cells by Electrochemical Impedance Spectroscopy

被引：0
|
作者：
Giordano, Elena [1 ]
Zaffora, Andrea [2 ]
Iannucci, Leonardo [1 ]
Santamaria, Monica [2 ]
Grassini, Sabrina [1 ]
机构：
[1] Politecn Torino, Dipartimento Sci Applicata & Tecnol, Turin, Italy
[2] Univ Palermo, Dipartimento Ingn, Palermo, Italy
来源：
2023 IEEE INTERNATIONAL INSTRUMENTATION AND MEASUREMENT TECHNOLOGY CONFERENCE, I2MTC | 2023年
关键词：
Fuel Cells; Electrochemical Impedance Spectroscopy; Impedance Measurements; Direct Methanol Fuel Cells; ACID; PERFORMANCE; CROSSOVER; STACK;
D O I：
10.1109/I2MTC53148.2023.10176090
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
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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页数：5
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