On-line mass spectrometry study of carbon corrosion in polymer electrolyte membrane fuel cells

被引：81

作者：

Oh, Hyung-Suk ^{[1
]}

Oh, Jong-Gil ^{[1
]}

Haam, Seungjoo ^{[1
]}

Arunabha, Kundu ^{[1
]}

Roh, Bumwook ^{[2
]}

Hwang, Inchul ^{[2
]}

Kim, Hansung ^{[1
]}

机构：

[1] Yonsei Univ, Dept Chem Engn, Seoul 120749, South Korea

[2] Hyundai Motor Co, Mabuk Ri, Gyeonggi Do, South Korea

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2008年 / 10卷 / 07期

关键词：

durability fuel cells; mass spectrometry; carbon corrosion; carbon supports;

D O I：

10.1016/j.elecom.2008.05.006

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The electrochemical corrosion of carbon catalyst supports in polymer electrolyte membrane (PEM) fuel cells is investigated by monitoring the generation of CO2 using an on-line mass spectrometer at a constant potential of 1.4 V. Our results suggest that carbon supports with a high degree of graphitization are more corrosion-resistant, which results in a dramatic improvement of the catalyst durability. We also show that CO2 measurements performed using on-line mass spectrometry represent a time-effective and reliable method for studying the electrochemical corrosion of carbon supports in PEM fuel cells. (c) 2008 Elsevier B.V. All rights reserved.

引用

页码：1048 / 1051

页数：4

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