Effect of operating conditions on carbon corrosion in polymer electrolyte membrane fuel cells

Katie Heeyum Lim; Hyung Suk Oh; Sang Eun Jang; Young Jin Ko; Hyun Jong Kim; Hansung Kim

doi:10.1016/j.jpowsour.2009.04.006

Effect of operating conditions on carbon corrosion in polymer electrolyte membrane fuel cells

Katie Heeyum Lim, Hyung Suk Oh, Sang Eun Jang, Young Jin Ko, Hyun Jong Kim, Hansung Kim

Department of Chemical and Biomolecular Engineering

Research output: Contribution to journal › Article › peer-review

94 Citations (Scopus)

Abstract

The influence of humidity, cell temperature and gas-phase O₂ on the electrochemical corrosion of carbon in polymer electrolyte membrane fuel cells is investigated by measuring CO₂ emission at a constant potential of 1.4 V for 30 min using on-line mass spectrometry. Carbon corrosion shows a strong positive correlation with humidity and cell temperature. The presence of water is indispensable for electrochemical carbon corrosion. By contrast, the presence of gas-phase O₂ has little effect on electrochemical carbon corrosion. With increased carbon corrosion, changes in fuel cell electrochemical characteristics become more prominent and thereby indicate that such corrosion significantly affects fuel cell durability.

Original language	English
Pages (from-to)	575-579
Number of pages	5
Journal	Journal of Power Sources
Volume	193
Issue number	2
DOIs	https://doi.org/10.1016/j.jpowsour.2009.04.006
Publication status	Published - 2009 Sep 5

Bibliographical note

Funding Information:
This work was partially supported by Hyundai Motors and the Ministry of Knowledge Economy of the South Korean Government through grant no. 2005-N-FC12-P-01-0-000, and a fostering project of the Core-Technology Research Center.

All Science Journal Classification (ASJC) codes

Renewable Energy, Sustainability and the Environment
Energy Engineering and Power Technology
Physical and Theoretical Chemistry
Electrical and Electronic Engineering

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.jpowsour.2009.04.006

Cite this

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title = "Effect of operating conditions on carbon corrosion in polymer electrolyte membrane fuel cells",

abstract = "The influence of humidity, cell temperature and gas-phase O2 on the electrochemical corrosion of carbon in polymer electrolyte membrane fuel cells is investigated by measuring CO2 emission at a constant potential of 1.4 V for 30 min using on-line mass spectrometry. Carbon corrosion shows a strong positive correlation with humidity and cell temperature. The presence of water is indispensable for electrochemical carbon corrosion. By contrast, the presence of gas-phase O2 has little effect on electrochemical carbon corrosion. With increased carbon corrosion, changes in fuel cell electrochemical characteristics become more prominent and thereby indicate that such corrosion significantly affects fuel cell durability.",

author = "Lim, {Katie Heeyum} and Oh, {Hyung Suk} and Jang, {Sang Eun} and Ko, {Young Jin} and Kim, {Hyun Jong} and Hansung Kim",

note = "Funding Information: This work was partially supported by Hyundai Motors and the Ministry of Knowledge Economy of the South Korean Government through grant no. 2005-N-FC12-P-01-0-000, and a fostering project of the Core-Technology Research Center.",

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doi = "10.1016/j.jpowsour.2009.04.006",

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T1 - Effect of operating conditions on carbon corrosion in polymer electrolyte membrane fuel cells

AU - Lim, Katie Heeyum

AU - Oh, Hyung Suk

AU - Jang, Sang Eun

AU - Ko, Young Jin

AU - Kim, Hyun Jong

AU - Kim, Hansung

N1 - Funding Information: This work was partially supported by Hyundai Motors and the Ministry of Knowledge Economy of the South Korean Government through grant no. 2005-N-FC12-P-01-0-000, and a fostering project of the Core-Technology Research Center.

PY - 2009/9/5

Y1 - 2009/9/5

N2 - The influence of humidity, cell temperature and gas-phase O2 on the electrochemical corrosion of carbon in polymer electrolyte membrane fuel cells is investigated by measuring CO2 emission at a constant potential of 1.4 V for 30 min using on-line mass spectrometry. Carbon corrosion shows a strong positive correlation with humidity and cell temperature. The presence of water is indispensable for electrochemical carbon corrosion. By contrast, the presence of gas-phase O2 has little effect on electrochemical carbon corrosion. With increased carbon corrosion, changes in fuel cell electrochemical characteristics become more prominent and thereby indicate that such corrosion significantly affects fuel cell durability.

AB - The influence of humidity, cell temperature and gas-phase O2 on the electrochemical corrosion of carbon in polymer electrolyte membrane fuel cells is investigated by measuring CO2 emission at a constant potential of 1.4 V for 30 min using on-line mass spectrometry. Carbon corrosion shows a strong positive correlation with humidity and cell temperature. The presence of water is indispensable for electrochemical carbon corrosion. By contrast, the presence of gas-phase O2 has little effect on electrochemical carbon corrosion. With increased carbon corrosion, changes in fuel cell electrochemical characteristics become more prominent and thereby indicate that such corrosion significantly affects fuel cell durability.

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JO - Journal of Power Sources

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SN - 0378-7753

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Effect of operating conditions on carbon corrosion in polymer electrolyte membrane fuel cells

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

UN SDGs

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