The DOI matches its Crossref record; 2 of the 2 references it cites were found in a registry or an index.
Versatile Strategy for Tuning ORR Activity of a Single Fe-N4 Site by Controlling Electron-Withdrawing/Donating Properties of a Carbon Plane
Abstract
Replacement of Pt-based oxygen reduction reaction (ORR) catalysts with non-precious metal catalysts (NPMCs) such as Fe/N/C is one of the most important issues in the commercialization of proton exchange membrane fuel cells (PEMFCs). Despite numerous studies on Fe/N/C catalysts, a fundamental study on the development of a versatile strategy is still required for tuning the kinetic activity of a single Fe-N 4 site. Herein, we report a new and intuitive design strategy for tuning and enhancing the kinetic activity of a single Fe-N 4 site by controlling electron-withdrawing/donating properties of a carbon plane with the incorporation of sulfur functionalities. The effect of electron-withdrawing/donating functionalities was elucidated by experimentation and theoretical calculations. Finally, the introduction of an oxidized sulfur functionality decreases the d-band center of iron by withdrawing electrons, thereby facilitating ORR at the Fe-N 4 site by lowering the intermediate adsorption energy. Furthermore, this strategy can enhance ORR activity without a decrease in the stability of the catalyst. This simple and straightforward approach can be a cornerstone to develop optimum NPMCs for application in the cathodes of PEMFCs.
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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
Anion-exchange membranes in electrochemical energy systems
Varcoe, J. R., Atanassov, P., Dekel, D. R., Herring, A. M., Hickner, M. A., Kohl, P. A., Kucernak, A. R., Mustain, W. E., Nijmeijer, K., Scott, K., et al. (2014) · Energy Environ. Sci. · doi:10.1039/c4ee01303d · Cited by 2,051
Cited by
Kodama, K., Nagai, T., Kuwaki, A., Jinnouchi, R., & Morimoto, Y. (2021) · Nature Nanotechnology · doi:10.1038/s41565-020-00824-w · Cited by 894
Liu, S., Li, C., Zachman, M. J., Zeng, Y., Yu, H., Li, B., Wang, M., Braaten, J., Liu, J., Meyer, H. M., et al. (2022) · Nature Energy · doi:10.1038/s41560-022-01062-1 · Cited by 733
Chen, 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
Electrocatalysis of Single-Atom Sites: Impacts of Atomic Coordination
Lu, B., Liu, Q., & Chen, S. (2020) · ACS Catalysis · doi:10.1021/acscatal.0c01950 · Cited by 394
Atomic interface effect of a single atom copper catalyst for enhanced oxygen reduction reactions
Jiang, Z., Sun, W., Shang, H., Chen, W., Sun, T., Li, H., Dong, J., Zhou, J., Li, Z., Wang, Y., et al. (2019) · Energy & Environmental Science · doi:10.1039/c9ee02974e · Cited by 380
Metadata
- Authors
- Mun, Y., Lee, S., Kim, K., Kim, S., Lee, S., Han, J. W., & Lee, J.
- Venue
- Journal of the American Chemical Society
- Publisher
- American Chemical Society (ACS)
- Published
- 2019-03-28
- Volume
- 141
- Issue
- 15
- Pages
- 6254-6262
- ISSN
- 0002-7863 (ISSN-L)
- 1520-5126
- OpenAlex
- W2930621785
- Cited by
- 710
- References
- 2
- FWCI
- 18.19
- Type
- journal article
- Language
- en
- Open access
- closed
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- Mun, Y., Lee, S., Kim, K., Kim, S., Lee, S., Han, J. W., & Lee, J. (2019). Versatile Strategy for Tuning ORR Activity of a Single Fe-N4 Site by Controlling Electron-Withdrawing/Donating Properties of a Carbon Plane. Journal of the American Chemical Society. https://doi.org/10.1021/jacs.8b13543
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