Performance-Limiting Factors of Hydrocarbon Ionomeric Binders for Fuel Cells and Electrolyzers
Jong-Ho Choi
1, 2, 3, 4
,
Tanya Agarwal
1, 2, 5, 6
,
Heemin Park
1, 2, 5, 6
,
Jiyoon Jung
7, 8
,
Ain Uddin
9, 10
,
Su Min Ahn
1, 2, 5, 6
,
Jeffrey Michael Klein
1, 2, 5, 6
,
Karl Martin Klein
1, 2
,
Kie Yong Cho
7, 8, 11, 12
,
Michelle Lehmann
9, 10
,
Cy Fujimoto
13, 14
,
Eun Joo Park
1, 2, 5, 6
,
Tomonori Saito
9, 10, 15, 16
,
Rod L Borup
1, 2, 5, 6
,
Yu Seung Kim
1, 2, 5, 6
3
Department of Electrical and Energy Engineering, Gyeongsan-si, Republic of Korea
|
4
Kyungil University, Gyeongsan-si, Republic of Korea
|
5
MPA-11: Materials Synthesis and Integrated Devices
7
Extreme Materials Research Center, Seoul, Republic of Korea
|
9
Chemical Sciences Division, Oak Ridge, United States
|
11
Extreme Materials Research Center
13
Nanoscale Sciences Department, Albuquerque, United States
|
15
Chemical Sciences Division
Publication type: Journal Article
Publication date: 2025-04-18
scimago Q1
wos Q1
SJR: 6.799
CiteScore: 29.6
Impact factor: 18.2
ISSN: 23808195
Abstract
The move toward nonfluorinated hydrocarbon ionomers for fuel cells and electrolyzers is driven by potential restrictions on polyfluoroalkyl substances such as Nafion. This study examines the key limitations of hydrocarbon ionomers through half- and single-cell experiments with model hydrocarbon ionomers. Half-cell tests reveal three major performance barriers: undesirable adsorption, electrochemical oxidation, and low gas permeability. Competitive sulfate adsorption helps counteract ionomer adsorption and oxidation. These findings align with single-cell performance data, which further reveal additional oxygen mass transport limitations likely caused by localized electrode flooding. Together, these findings offer valuable insights to guide the development of high-performance, fluorine-free hydrocarbon ionomers for next-generation fuel cells and electrolyzers.
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Choi J. et al. Performance-Limiting Factors of Hydrocarbon Ionomeric Binders for Fuel Cells and Electrolyzers // ACS Energy Letters. 2025. Vol. 10. No. 5. pp. 2392-2399.
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Choi J., Agarwal T., Park H., Jung J., Uddin A., Ahn S. M., Klein J. M., Klein K. M., Cho K. Y., Lehmann M., Fujimoto C., Park E. J., Saito T., Borup R. L., Kim Yu. S. Performance-Limiting Factors of Hydrocarbon Ionomeric Binders for Fuel Cells and Electrolyzers // ACS Energy Letters. 2025. Vol. 10. No. 5. pp. 2392-2399.
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TY - JOUR
DO - 10.1021/acsenergylett.5c00487
UR - https://pubs.acs.org/doi/10.1021/acsenergylett.5c00487
TI - Performance-Limiting Factors of Hydrocarbon Ionomeric Binders for Fuel Cells and Electrolyzers
T2 - ACS Energy Letters
AU - Choi, Jong-Ho
AU - Agarwal, Tanya
AU - Park, Heemin
AU - Jung, Jiyoon
AU - Uddin, Ain
AU - Ahn, Su Min
AU - Klein, Jeffrey Michael
AU - Klein, Karl Martin
AU - Cho, Kie Yong
AU - Lehmann, Michelle
AU - Fujimoto, Cy
AU - Park, Eun Joo
AU - Saito, Tomonori
AU - Borup, Rod L
AU - Kim, Yu Seung
PY - 2025
DA - 2025/04/18
PB - American Chemical Society (ACS)
SP - 2392-2399
IS - 5
VL - 10
SN - 2380-8195
ER -
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@article{2025_Choi,
author = {Jong-Ho Choi and Tanya Agarwal and Heemin Park and Jiyoon Jung and Ain Uddin and Su Min Ahn and Jeffrey Michael Klein and Karl Martin Klein and Kie Yong Cho and Michelle Lehmann and Cy Fujimoto and Eun Joo Park and Tomonori Saito and Rod L Borup and Yu Seung Kim},
title = {Performance-Limiting Factors of Hydrocarbon Ionomeric Binders for Fuel Cells and Electrolyzers},
journal = {ACS Energy Letters},
year = {2025},
volume = {10},
publisher = {American Chemical Society (ACS)},
month = {apr},
url = {https://pubs.acs.org/doi/10.1021/acsenergylett.5c00487},
number = {5},
pages = {2392--2399},
doi = {10.1021/acsenergylett.5c00487}
}
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Choi, Jong-Ho, et al. “Performance-Limiting Factors of Hydrocarbon Ionomeric Binders for Fuel Cells and Electrolyzers.” ACS Energy Letters, vol. 10, no. 5, Apr. 2025, pp. 2392-2399. https://pubs.acs.org/doi/10.1021/acsenergylett.5c00487.
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