The DOI matches its Crossref record; 3 of the 3 references it cites were found in a registry or an index.
On the Influence of Oxygen on the Degradation of Fe‐N‐C Catalysts
Abstract
Fe‐N‐C catalysts containing atomic FeNx sites are promising candidates as precious‐metal‐free catalysts for oxygen reduction reaction (ORR) in proton exchange membrane fuel cells. The durability of Fe‐N‐C catalysts in fuel cells has been extensively studied using accelerated stress tests (AST). Herein we reveal stronger degradation of the Fe‐N‐C structure and four‐times higher ORR activity loss when performing load cycling AST in O 2‐ vs. Ar‐saturated pH 1 electrolyte. Raman spectroscopy results show carbon corrosion after AST in O 2, even when cycling at low potentials, while no corrosion occurred after any load cycling AST in Ar. The load‐cycling AST in O 2 leads to loss of a significant fraction of FeNx sites, as shown by energy dispersive X‐ray spectroscopy analyses, and to the formation of Fe oxides. The results support that the unexpected carbon corrosion occurring at such low potential in the presence of O 2 is due to reactive oxygen species produced between H 2 O 2 and Fe sites via Fenton reactions.
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Cites
High-performance fuel cell cathodes exclusively containing atomically dispersed iron active sites
Zhang, H., Chung, H. T., Cullen, D. A., Wagner, S., Kramm, U. I., More, K. L., Zelenay, P., & Wu, G. (2019) · Energy & Environmental Science · doi:10.1039/c9ee00877b · Cited by 616
In situ electrochemical quantification of active sites in Fe–N/C non-precious metal catalysts
Malko, D., Kucernak, A., & Lopes, T. (2016) · Nature Communications · doi:10.1038/ncomms13285 · Cited by 568
PGM‐Free Cathode Catalysts for PEM Fuel Cells: A Mini‐Review on Stability Challenges
Shao, Y., Dodelet, J., Wu, G., & Zelenay, P. (2019) · Advanced Materials · doi:10.1002/adma.201807615 · Cited by 553
Cited by
(2020) · doi:10.1038/s41929-020-00545-2 · Cited by 741
Advancements in cathode catalyst and cathode layer design for proton exchange membrane fuel cells
Sun, Y., Polani, S., Luo, F., Ott, S., Strasser, P., & Dionigi, F. (2021) · Nature Communications · doi:10.1038/s41467-021-25911-x · Cited by 369
Du, L., Prabhakaran, V., Xie, X., Park, S., Wang, Y., & Shao, Y. (2021) · Advanced Materials · doi:10.1002/adma.201908232 · Cited by 357
Carbon‐Based Electrocatalysts for Acidic Oxygen Reduction Reaction
Cui, P., Zhao, L., Long, Y., Dai, L., & Hu, C. (2023) · Angewandte Chemie International Edition · doi:10.1002/anie.202218269 · Cited by 267
Hu, J., Wang, S., Yu, J., Nie, W., Sun, J., & Wang, S. (2021) · Environmental Science & Technology · doi:10.1021/acs.est.0c06825 · Cited by 258
Metadata
- Authors
- Kumar, K., Dubau, L., Mermoux, M., Li, J., Zitolo, A., Nelayah, J., Jaouen, F., & Maillard, F.
- Venue
- Angewandte Chemie International Edition
- Publisher
- Wiley
- Published
- 2020-01-07
- Volume
- 59
- Issue
- 8
- Pages
- 3235-3243
- ISSN
- 1433-7851 (ISSN-L)
- 1521-3773
- OpenAlex
- W4230730036
- Cited by
- 238
- References
- 3
- FWCI
- 5.41
- Type
- journal article
- Language
- en
- Open access
- closed
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- Kumar, K., Dubau, L., Mermoux, M., Li, J., Zitolo, A., Nelayah, J., Jaouen, F., & Maillard, F. (2020). On the Influence of Oxygen on the Degradation of Fe‐N‐C Catalysts. Angewandte Chemie International Edition. https://doi.org/10.1002/anie.201912451
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