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

doi:10.1016/j.elecom.2008.05.006

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

Department of Chemical and Biomolecular Engineering

Research output: Contribution to journal › Article

49 Citations (Scopus)

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
Pages (from-to)	1048-1051
Number of pages	4
Journal	Electrochemistry Communications
Volume	10
Issue number	7
DOIs	https://doi.org/10.1016/j.elecom.2008.05.006
Publication status	Published - 2008 Jul 1

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All Science Journal Classification (ASJC) codes

Electrochemistry

Cite this

Oh, H. S., Oh, J. G., Haam, S., Arunabha, K., Roh, B., Hwang, I., & Kim, H. (2008). On-line mass spectrometry study of carbon corrosion in polymer electrolyte membrane fuel cells. Electrochemistry Communications, 10(7), 1048-1051. https://doi.org/10.1016/j.elecom.2008.05.006

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AU - Haam, Seungjoo

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AU - Roh, Bumwook

AU - Hwang, Inchul

AU - Kim, Hansung

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AB - 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.

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Access to Document

10.1016/j.elecom.2008.05.006