In situ FTIR-diffuse reflection spectroscopy of the anode surface in a direct methanol/oxygen fuel cell

被引：26

作者：

Fan, QB

Pu, C

Ley, KL

Smotkin, ES

机构：

[1] Department of Chemistry, Illinois Institute of Technology, Chicago

来源：

JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 1996年 / 143卷 / 02期

关键词：

D O I：

10.1149/1.1836443

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

In situ Fourier transform infrared-diffuse reflection spectroscopy is introduced as a method for studying the catalytic surfaces of membrane electrode assemblies in working fuel cells. An annular collection electrode and a CaF2 window are used to expose a sufficient area of the electrode to the IR beam. Experimental results for methanol oxidation, CO adsorption, and (CO2 + CO) adsorption show that this method can be used to monitor the catalyst surface in a direct methanol fuel cell under load. The IR peaks associated with CO adsorption on high surface area Pt-Ru are similar to previously observed peaks on smooth electrodes reported in the literature.

引用

页码：L21 / L23

页数：3

共 12 条

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