The DOI matches its Crossref record; 2 of the 2 references it cites were found in a registry or an index.
Nitrogen‐Coordinated Single Cobalt Atom Catalysts for Oxygen Reduction in Proton Exchange Membrane Fuel Cells
Open accessAbstract
Due to the Fenton reaction, the presence of Fe and peroxide in electrodes generates free radicals causing serious degradation of the organic ionomer and the membrane. Pt‐free and Fe‐free cathode catalysts therefore are urgently needed for durable and inexpensive proton exchange membrane fuel cells (PEMFCs). Herein, a high‐performance nitrogen‐coordinated single Co atom catalyst is derived from Co‐doped metal‐organic frameworks (MOFs) through a one‐step thermal activation. Aberration‐corrected electron microscopy combined with X‐ray absorption spectroscopy virtually verifies the CoN 4 coordination at an atomic level in the catalysts. Through investigating effects of Co doping contents and thermal activation temperature, an atomically Co site dispersed catalyst with optimal chemical and structural properties has achieved respectable activity and stability for the oxygen reduction reaction (ORR) in challenging acidic media (e.g., half‐wave potential of 0.80 V vs reversible hydrogen electrode (RHE). The performance is comparable to Fe‐based catalysts and 60 mV lower than Pt/C ‐60 μg Pt cm−2). Fuel cell tests confirm that catalyst activity and stability can translate to high‐performance cathodes in PEMFCs. The remarkably enhanced ORR performance is attributed to the presence of well‐dispersed CoN 4 active sites embedded in 3D porous MOF‐derived carbon particles, omitting any inactive Co aggregates.
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Cites
High-Performance Electrocatalysts for Oxygen Reduction Derived from Polyaniline, Iron, and Cobalt
Wu, G., More, K. L., Johnston, C. M., & Zelenay, P. (2011) · Science · doi:10.1126/science.1200832 · Cited by 3,984
Self-citationAtomic cobalt on nitrogen-doped graphene for hydrogen generation
Fei, H., Dong, J., Arellano-Jiménez, M. J., Ye, G., Dong Kim, N., Samuel, E. L. G., Peng, Z., Zhu, Z., Qin, F., Bao, J., et al. (2015) · Nature Communications · doi:10.1038/ncomms9668 · Cited by 1,621
Cited by
Wan, X., Liu, X., Li, Y., Yu, R., Zheng, L., Yan, W., Wang, H., Xu, M., & Shui, J. (2019) · Nature Catalysis · doi:10.1038/s41929-019-0237-3 · Cited by 1,379
Wang, X. X., Swihart, M. T., & Wu, G. (2019) · Nature Catalysis · doi:10.1038/s41929-019-0304-9 · Cited by 1,174
Self-citationMetal–organic frameworks as a platform for clean energy applications
Li, X., Yang, X., Xue, H., Pang, H., & Xu, Q. (2020) · EnergyChem · doi:10.1016/j.enchem.2020.100027 · Cited by 706
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-citationLu, X. F., Fang, Y., Luan, D., & Lou, X. W. D. (2021) · Nano Letters · doi:10.1021/acs.nanolett.0c04898 · Cited by 555
Metadata
- Authors
- Wang, X. X., Cullen, D. A., Pan, Y., Hwang, S., Wang, M., Feng, Z., Wang, J., Engelhard, M. H., Zhang, H., He, Y., Shao, Y., Su, D., More, K. L., Spendelow, J. S., & Wu, G.
- Venue
- Advanced Materials
- Publisher
- Wiley
- Published
- 2018-01-24
- Volume
- 30
- Issue
- 11
- ISSN
- 0935-9648 (ISSN-L)
- 1521-4095
- OpenAlex
- W2792063676
- Cited by
- 1,086
- References
- 2
- FWCI
- 34.50
- Type
- journal article
- Language
- en
- Open access
- green
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- Wang, X. X., Cullen, D. A., Pan, Y., Hwang, S., Wang, M., Feng, Z., Wang, J., Engelhard, M. H., Zhang, H., He, Y., Shao, Y., Su, D., More, K. L., Spendelow, J. S., & Wu, G. (2018). Nitrogen‐Coordinated Single Cobalt Atom Catalysts for Oxygen Reduction in Proton Exchange Membrane Fuel Cells. Advanced Materials. https://doi.org/10.1002/adma.201706758
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