The DOI matches its Crossref record; 8 of the 8 references it cites were found in a registry or an index.
Iron‐Free Cathode Catalysts for Proton‐Exchange‐Membrane Fuel Cells: Cobalt Catalysts and the Peroxide Mitigation Approach
Abstract
High‐performance and inexpensive platinum‐group‐metal (PGM)‐free catalysts for the oxygen reduction reaction (ORR) in challenging acidic media are crucial for proton‐exchange‐membrane fuel cells (PEMFCs). Catalysts based on Fe and N codoped carbon (Fe–N–C) have demonstrated promising activity and stability. However, a serious concern is the Fenton reactions between Fe 2+ and H 2 O 2 generating active free radicals, which likely cause degradation of the catalysts, organic ionomers within electrodes, and polymer membranes used in PEMFCs. Alternatively, Co–N–C catalysts with mitigated Fenton reactions have been explored as a promising replacement for Fe and PGM catalysts. Therefore, herein, the focus is on Co–N–C catalysts for the ORR relevant to PEMFC applications. Catalyst synthesis, structure/morphology, activity and stability improvement, and reaction mechanisms are discussed in detail. Combining experimental and theoretical understanding, the aim is to elucidate the structure–property correlations and provide guidance for rational design of advanced Co catalysts with a special emphasis on atomically dispersed single‐metal‐site catalysts. In the meantime, to reduce H 2 O 2 generation during the ORR on the Co catalysts, potential strategies are outlined to minimize the detrimental effect on fuel cell durability.
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Citations
Cites
Electrocatalyst approaches and challenges for automotive fuel cells
Debe, M. K. (2012) · Nature · doi:10.1038/nature11115 · Cited by 5,885
High-Performance Electrocatalysts for Oxygen Reduction Derived from Polyaniline, Iron, and Cobalt
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Self-citationRecent Advances in Electrocatalysts for Oxygen Reduction Reaction
Shao, M., Chang, Q., Dodelet, J.-P., & Chenitz, R. (2016) · Chemical Reviews · doi:10.1021/acs.chemrev.5b00462 · Cited by 3,903
Recent advancements in Pt and Pt-free catalysts for oxygen reduction reaction
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Self-citationBanham, D., Kishimoto, T., Zhou, Y., Sato, T., Bai, K., Ozaki, J.-I., Imashiro, Y., & Ye, S. (2018) · Science Advances · doi:10.1126/sciadv.aar7180 · Cited by 267
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Cited by
Wang, X. X., Swihart, M. T., & Wu, G. (2019) · Nature Catalysis · doi:10.1038/s41929-019-0304-9 · Cited by 1,174
Self-citationChen, Y., Gao, R., Ji, S., Li, H., Tang, K., Jiang, P., Hu, H., Zhang, Z., Hao, H., Qu, Q., et al. (2021) · Angewandte Chemie International Edition · doi:10.1002/anie.202012798 · Cited by 650
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
Self-citationDu, L., Prabhakaran, V., Xie, X., Park, S., Wang, Y., & Shao, Y. (2021) · Advanced Materials · doi:10.1002/adma.201908232 · Cited by 357
Self-citationExploring Durable Single-Atom Catalysts for Proton Exchange Membrane Fuel Cells
Wan, X., & Shui, J. (2022) · ACS Energy Letters · doi:10.1021/acsenergylett.2c00473 · Cited by 128
Metadata
- Authors
- Wang, X. X., Prabhakaran, V., He, Y., Shao, Y., & Wu, G.
- Venue
- Advanced Materials
- Publisher
- Wiley
- Published
- 2019-02
- Volume
- 31
- Issue
- 31
- Pages
- e1805126-e1805126
- ISSN
- 0935-9648 (ISSN-L)
- 1521-4095
- OpenAlex
- W2912752889
- Cited by
- 321
- References
- 8
- FWCI
- 9.79
- Type
- journal article
- Language
- en
- Open access
- closed
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- Wang, X. X., Prabhakaran, V., He, Y., Shao, Y., & Wu, G. (2019). Iron‐Free Cathode Catalysts for Proton‐Exchange‐Membrane Fuel Cells: Cobalt Catalysts and the Peroxide Mitigation Approach. Advanced Materials. https://doi.org/10.1002/adma.201805126
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