Abstract
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.
Original language | English |
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Pages (from-to) | 1048-1051 |
Number of pages | 4 |
Journal | Electrochemistry Communications |
Volume | 10 |
Issue number | 7 |
DOIs | |
Publication status | Published - 2008 Jul |
Bibliographical note
Funding Information:This work was supported by Hyundai Motors Company and Korea Research Foundation Grant (KRF-2003-005-D00002).
All Science Journal Classification (ASJC) codes
- Electrochemistry