Recoverable performance loss due to membrane chemical degradation in PEM fuel cells

Jingxin Zhang; Brian A. Litteer; Frank D. Coms; Rohit Makharia

doi:10.1149/2.063207jes

Recoverable performance loss due to membrane chemical degradation in PEM fuel cells

Jingxin Zhang, Brian A. Litteer, Frank D. Coms, Rohit Makharia

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

54 Citations (Scopus)

Abstract

Recoverable voltage loss was observed for a PEM fuel cell due to membrane chemical degradation under open circuit voltage (OCV) conditions. The anion analysis of the fuel cell effluent water, collected during both the OCV hold and voltage recovery stages, indicates that sulfate release rate is much higher during recovery than that during the OCV hold. The surge in sulfate anion release occurs simultaneously with the recovery of fuel cell voltage. It was found that the reversible voltage loss, and concurrent sulfate release rate during voltage recovery, is lower for Ce-mitigated NRE211 membrane compared to as-received membrane. The recoverable voltage loss is proposed to be mainly due to the sulfate anion generated by membrane chemical degradation adsorbing onto the platinum catalyst surface.

Original language	English
Pages (from-to)	F287-F293
Number of pages	7
Journal	Journal of the Electrochemical Society
Volume	159
Issue number	7
DOIs	https://doi.org/10.1149/2.063207jes
Publication status	Published - 2012
Externally published	Yes

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10.1149/2.063207jes

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title = "Recoverable performance loss due to membrane chemical degradation in PEM fuel cells",

abstract = "Recoverable voltage loss was observed for a PEM fuel cell due to membrane chemical degradation under open circuit voltage (OCV) conditions. The anion analysis of the fuel cell effluent water, collected during both the OCV hold and voltage recovery stages, indicates that sulfate release rate is much higher during recovery than that during the OCV hold. The surge in sulfate anion release occurs simultaneously with the recovery of fuel cell voltage. It was found that the reversible voltage loss, and concurrent sulfate release rate during voltage recovery, is lower for Ce-mitigated NRE211 membrane compared to as-received membrane. The recoverable voltage loss is proposed to be mainly due to the sulfate anion generated by membrane chemical degradation adsorbing onto the platinum catalyst surface.",

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AU - Zhang, Jingxin

AU - Litteer, Brian A.

AU - Coms, Frank D.

AU - Makharia, Rohit

PY - 2012

Y1 - 2012

N2 - Recoverable voltage loss was observed for a PEM fuel cell due to membrane chemical degradation under open circuit voltage (OCV) conditions. The anion analysis of the fuel cell effluent water, collected during both the OCV hold and voltage recovery stages, indicates that sulfate release rate is much higher during recovery than that during the OCV hold. The surge in sulfate anion release occurs simultaneously with the recovery of fuel cell voltage. It was found that the reversible voltage loss, and concurrent sulfate release rate during voltage recovery, is lower for Ce-mitigated NRE211 membrane compared to as-received membrane. The recoverable voltage loss is proposed to be mainly due to the sulfate anion generated by membrane chemical degradation adsorbing onto the platinum catalyst surface.

AB - Recoverable voltage loss was observed for a PEM fuel cell due to membrane chemical degradation under open circuit voltage (OCV) conditions. The anion analysis of the fuel cell effluent water, collected during both the OCV hold and voltage recovery stages, indicates that sulfate release rate is much higher during recovery than that during the OCV hold. The surge in sulfate anion release occurs simultaneously with the recovery of fuel cell voltage. It was found that the reversible voltage loss, and concurrent sulfate release rate during voltage recovery, is lower for Ce-mitigated NRE211 membrane compared to as-received membrane. The recoverable voltage loss is proposed to be mainly due to the sulfate anion generated by membrane chemical degradation adsorbing onto the platinum catalyst surface.

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DO - 10.1149/2.063207jes

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AN - SCOPUS:84875962272

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VL - 159

SP - F287-F293

JO - Journal of the Electrochemical Society

JF - Journal of the Electrochemical Society

IS - 7

ER -

Recoverable performance loss due to membrane chemical degradation in PEM fuel cells

Abstract

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Research output

Recoverable performance loss due to membrane chemical degradation in PEM fuel cells

Cite this