Study on corrosion migrations within catalyst-coated membranes of proton exchange membrane electrolyzer cells

Jingke Mo; Stuart Steen; Zhenye Kang; Gaoqiang Yang; Derrick A. Taylor; Yifan Li; Todd J. Toops; Michael P. Brady; Scott T. Retterer; David A. Cullen; Johney B. Green; Feng Yuan Zhang

doi:10.1016/j.ijhydene.2017.09.020

Study on corrosion migrations within catalyst-coated membranes of proton exchange membrane electrolyzer cells

Jingke Mo, Stuart Steen, Zhenye Kang, Gaoqiang Yang, Derrick A. Taylor, Yifan Li, Todd J. Toops, Michael P. Brady, Scott T. Retterer, David A. Cullen, Johney B. Green, Feng Yuan Zhang

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

38 Scopus citations

Abstract

The corrosion of low-cost, easily manufactured metallic components inside the electrochemical environment of proton exchange membrane electrolyzer cells (PEMECs) has a significant effect on their performance and durability. In this study, 316 stainless steel (SS) mesh was used as a model liquid/gas diffusion layer material to investigate the migration of corrosion products in the catalyst-coated membrane of a PEMEC. Iron and nickel cation particles were found distributed throughout the anode catalyst layer, proton exchange membrane, and cathode catalyst layer, as revealed by scanning transmission electron microscopy and energy dispersive X-ray spectroscopy. The results indicate the corrosion products of 316 SS are transported from anode to cathode through the nanochannels of the Nafion membrane, resulting in impeded proton transport and overall PEMEC performance loss.

Original language	English
Pages (from-to)	27343-27349
Number of pages	7
Journal	International Journal of Hydrogen Energy
Volume	42
Issue number	44
DOIs	https://doi.org/10.1016/j.ijhydene.2017.09.020
State	Published - Nov 2 2017

Funding

The authors greatly appreciate the support from U.S. Department of Energy's National Energy Technology Laboratory under Award DE-FE0011585. The research was partially performed at ORNL's Center for Nanophase Materials Sciences (CNMS), which is sponsored by DOE Office of Basic Energy Sciences. The authors also wish to express their appreciations to Alexander Terekhov, Douglas Warnberg, and Kate Lansford for their help. The authors greatly appreciate the support from U.S. Department of Energy's National Energy Technology Laboratory under Award DE-FE0011585 . The research was partially performed at ORNL's Center for Nanophase Materials Sciences (CNMS), which is sponsored by DOE Office of Basic Energy Sciences . The authors also wish to express their appreciations to Alexander Terekhov, Douglas Warnberg, and Kate Lansford for their help.

Funders	Funder number
DOE Office of Basic Energy Sciences
ORNL's
U.S. Department of Energy
National Energy Technology Laboratory	DE-FE0011585

Keywords

Corrosion
Migration
Nafion
Proton exchange membrane
Stainless steel

UN SDGs

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

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10.1016/j.ijhydene.2017.09.020

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Mo, J., Steen, S., Kang, Z., Yang, G., Taylor, D. A., Li, Y., Toops, T. J., Brady, M. P., Retterer, S. T., Cullen, D. A., Green, J. B., & Zhang, F. Y. (2017). Study on corrosion migrations within catalyst-coated membranes of proton exchange membrane electrolyzer cells. International Journal of Hydrogen Energy, 42(44), 27343-27349. https://doi.org/10.1016/j.ijhydene.2017.09.020

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abstract = "The corrosion of low-cost, easily manufactured metallic components inside the electrochemical environment of proton exchange membrane electrolyzer cells (PEMECs) has a significant effect on their performance and durability. In this study, 316 stainless steel (SS) mesh was used as a model liquid/gas diffusion layer material to investigate the migration of corrosion products in the catalyst-coated membrane of a PEMEC. Iron and nickel cation particles were found distributed throughout the anode catalyst layer, proton exchange membrane, and cathode catalyst layer, as revealed by scanning transmission electron microscopy and energy dispersive X-ray spectroscopy. The results indicate the corrosion products of 316 SS are transported from anode to cathode through the nanochannels of the Nafion membrane, resulting in impeded proton transport and overall PEMEC performance loss.",

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AU - Mo, Jingke

AU - Steen, Stuart

AU - Kang, Zhenye

AU - Yang, Gaoqiang

AU - Taylor, Derrick A.

AU - Li, Yifan

AU - Toops, Todd J.

AU - Brady, Michael P.

AU - Retterer, Scott T.

AU - Cullen, David A.

AU - Green, Johney B.

AU - Zhang, Feng Yuan

PY - 2017/11/2

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N2 - The corrosion of low-cost, easily manufactured metallic components inside the electrochemical environment of proton exchange membrane electrolyzer cells (PEMECs) has a significant effect on their performance and durability. In this study, 316 stainless steel (SS) mesh was used as a model liquid/gas diffusion layer material to investigate the migration of corrosion products in the catalyst-coated membrane of a PEMEC. Iron and nickel cation particles were found distributed throughout the anode catalyst layer, proton exchange membrane, and cathode catalyst layer, as revealed by scanning transmission electron microscopy and energy dispersive X-ray spectroscopy. The results indicate the corrosion products of 316 SS are transported from anode to cathode through the nanochannels of the Nafion membrane, resulting in impeded proton transport and overall PEMEC performance loss.

AB - The corrosion of low-cost, easily manufactured metallic components inside the electrochemical environment of proton exchange membrane electrolyzer cells (PEMECs) has a significant effect on their performance and durability. In this study, 316 stainless steel (SS) mesh was used as a model liquid/gas diffusion layer material to investigate the migration of corrosion products in the catalyst-coated membrane of a PEMEC. Iron and nickel cation particles were found distributed throughout the anode catalyst layer, proton exchange membrane, and cathode catalyst layer, as revealed by scanning transmission electron microscopy and energy dispersive X-ray spectroscopy. The results indicate the corrosion products of 316 SS are transported from anode to cathode through the nanochannels of the Nafion membrane, resulting in impeded proton transport and overall PEMEC performance loss.

KW - Corrosion

KW - Migration

KW - Nafion

KW - Proton exchange membrane

KW - Stainless steel

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ER -

Study on corrosion migrations within catalyst-coated membranes of proton exchange membrane electrolyzer cells

Abstract

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Keywords

UN SDGs

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