Investigation of MEA degradation in PEM fuel cell by on/off cyclic operation under different humid conditions

Dongho Seo; Junghyun Lee; Sangsun Park; Junki Rhee; Sung Won Choi; Yong Gun Shul

doi:10.1016/j.ijhydene.2010.02.053

Investigation of MEA degradation in PEM fuel cell by on/off cyclic operation under different humid conditions

Dongho Seo, Junghyun Lee, Sangsun Park, Junki Rhee, Sung Won Choi, Yong Gun Shul

Department of Chemical and Biomolecular Engineering

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

54 Citations (Scopus)

Abstract

The durability of PEM fuel cells as a function of different humid conditions and MEA degradation were investigated by on/off cyclic operation. The maximum numbers of cycles determined by cycle at 10% of cell voltage loss were 1980, 1650, 1100, 520, and 320 cycles at relative humidity (RH) of 1000, 80, 50, 30, and 10%, respectively. The increases of ohmic resistance were observed at the high humid conditions of RH 100 and 80%. On the other hand, the charge transfer resistance increased at low humid conditions of RH 50, 30, and 10%. The losses of electrochemical surface area were obtained about 21% and 7% under RH 50 and 30% after the on/off cyclic operations, respectively. The thickness of electrode was reduced in the both anode and cathode layer, indicating that carbon corrosion occurred during on/off cycling. At cathode layer, the growth and migration platinum particles into polymer electrolyte were detected by XRD and TEM analyses.

Original language	English
Pages (from-to)	1828-1836
Number of pages	9
Journal	International Journal of Hydrogen Energy
Volume	36
Issue number	2
DOIs	https://doi.org/10.1016/j.ijhydene.2010.02.053
Publication status	Published - 2011 Jan

Bibliographical note

Funding Information:
This work was financially supported by New & Renewable Energy R&D Program(2009T100100606) under the Ministry of Knowledge and Economy, Republic of Korea and Manpower Development Program for Energy & Resources supported by the Ministry of Knowledge and Economy (MKE).

All Science Journal Classification (ASJC) codes

Renewable Energy, Sustainability and the Environment
Fuel Technology
Condensed Matter Physics
Energy Engineering and Power Technology

UN SDGs

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

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10.1016/j.ijhydene.2010.02.053

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title = "Investigation of MEA degradation in PEM fuel cell by on/off cyclic operation under different humid conditions",

abstract = "The durability of PEM fuel cells as a function of different humid conditions and MEA degradation were investigated by on/off cyclic operation. The maximum numbers of cycles determined by cycle at 10% of cell voltage loss were 1980, 1650, 1100, 520, and 320 cycles at relative humidity (RH) of 1000, 80, 50, 30, and 10%, respectively. The increases of ohmic resistance were observed at the high humid conditions of RH 100 and 80%. On the other hand, the charge transfer resistance increased at low humid conditions of RH 50, 30, and 10%. The losses of electrochemical surface area were obtained about 21% and 7% under RH 50 and 30% after the on/off cyclic operations, respectively. The thickness of electrode was reduced in the both anode and cathode layer, indicating that carbon corrosion occurred during on/off cycling. At cathode layer, the growth and migration platinum particles into polymer electrolyte were detected by XRD and TEM analyses.",

author = "Dongho Seo and Junghyun Lee and Sangsun Park and Junki Rhee and Choi, {Sung Won} and Shul, {Yong Gun}",

note = "Funding Information: This work was financially supported by New & Renewable Energy R&D Program(2009T100100606) under the Ministry of Knowledge and Economy, Republic of Korea and Manpower Development Program for Energy & Resources supported by the Ministry of Knowledge and Economy (MKE). ",

year = "2011",

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doi = "10.1016/j.ijhydene.2010.02.053",

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AU - Seo, Dongho

AU - Lee, Junghyun

AU - Park, Sangsun

AU - Rhee, Junki

AU - Choi, Sung Won

AU - Shul, Yong Gun

N1 - Funding Information: This work was financially supported by New & Renewable Energy R&D Program(2009T100100606) under the Ministry of Knowledge and Economy, Republic of Korea and Manpower Development Program for Energy & Resources supported by the Ministry of Knowledge and Economy (MKE).

PY - 2011/1

Y1 - 2011/1

N2 - The durability of PEM fuel cells as a function of different humid conditions and MEA degradation were investigated by on/off cyclic operation. The maximum numbers of cycles determined by cycle at 10% of cell voltage loss were 1980, 1650, 1100, 520, and 320 cycles at relative humidity (RH) of 1000, 80, 50, 30, and 10%, respectively. The increases of ohmic resistance were observed at the high humid conditions of RH 100 and 80%. On the other hand, the charge transfer resistance increased at low humid conditions of RH 50, 30, and 10%. The losses of electrochemical surface area were obtained about 21% and 7% under RH 50 and 30% after the on/off cyclic operations, respectively. The thickness of electrode was reduced in the both anode and cathode layer, indicating that carbon corrosion occurred during on/off cycling. At cathode layer, the growth and migration platinum particles into polymer electrolyte were detected by XRD and TEM analyses.

AB - The durability of PEM fuel cells as a function of different humid conditions and MEA degradation were investigated by on/off cyclic operation. The maximum numbers of cycles determined by cycle at 10% of cell voltage loss were 1980, 1650, 1100, 520, and 320 cycles at relative humidity (RH) of 1000, 80, 50, 30, and 10%, respectively. The increases of ohmic resistance were observed at the high humid conditions of RH 100 and 80%. On the other hand, the charge transfer resistance increased at low humid conditions of RH 50, 30, and 10%. The losses of electrochemical surface area were obtained about 21% and 7% under RH 50 and 30% after the on/off cyclic operations, respectively. The thickness of electrode was reduced in the both anode and cathode layer, indicating that carbon corrosion occurred during on/off cycling. At cathode layer, the growth and migration platinum particles into polymer electrolyte were detected by XRD and TEM analyses.

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Investigation of MEA degradation in PEM fuel cell by on/off cyclic operation under different humid conditions

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

UN SDGs

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