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

Hyung Suk Oh, Jong Gil Oh, Seungjoo Haam, Kundu Arunabha, Bumwook Roh, Inchul Hwang, Hansung Kim

Research output: Contribution to journalArticle

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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 languageEnglish
Pages (from-to)1048-1051
Number of pages4
JournalElectrochemistry Communications
Issue number7
Publication statusPublished - 2008 Jul 1


All Science Journal Classification (ASJC) codes

  • Electrochemistry

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