The DOI matches its Crossref record; 36 of the 36 references it cites were found in a registry or an index.
Significantly Enhanced Overall Water Splitting Performance by Partial Oxidation of Ir through Au Modification in Core–Shell Alloy Structure
Abstract
Developing efficient bifunctional electrocatalysts for overall water splitting in acidic conditions is the essential step for proton exchange membrane water electrolyzers (PEMWEs). We first report the synthesis of core–shell structure nanoparticles (NPs) with an Au core and an AuIr 2 alloy shell ( [email protected] 2 ). [email protected] 2 displayed 4.6 (5.6) times higher intrinsic (mass) activity toward the oxygen evolution reaction (OER) than a commercial Ir catalyst. Furthermore, it showed hydrogen evolution reaction (HER) catalytic properties comparable to those of commercial Pt/C. Significantly, when [email protected] 2 was used as both the anode and cathode catalyst, the overall water splitting cell achieved 10 mA/cm 2 with a low cell voltage of 1.55 V and maintained this activity for more than 40 h, which greatly outperformed the commercial couples (Ir/C||Pt/C, 1.63 V, activity decreased within minutes) and is among the most efficient bifunctional catalysts reported. Theoretical calculations coupled with X-ray-based structural analyses suggest that partially oxidized surfaces originating from the electronic interaction between Au and Ir provide a balance for different intermediates binding and realize significantly enhanced OER performance.
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Cited by
Bifunctional Electrocatalysts for Overall and Hybrid Water Splitting
Quan, L., Jiang, H., Mei, G., Sun, Y., & You, B. (2024) · Chemical Reviews · doi:10.1021/acs.chemrev.3c00332 · Cited by 874
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Locking the lattice oxygen in RuO2 to stabilize highly active Ru sites in acidic water oxidation
Ping, X., Liu, Y., Zheng, L., Song, Y., Guo, L., Chen, S., & Wei, Z. (2024) · Nature Communications · doi:10.1038/s41467-024-46815-6 · Cited by 363
Rational Design of Transition Metal Phosphide‐Based Electrocatalysts for Hydrogen Evolution
Liu, D., Xu, G., Yang, H., Wang, H., & Xia, B. Y. (2023) · Advanced Functional Materials · doi:10.1002/adfm.202208358 · Cited by 302
Self-citationGao, G., Zhu, G., Chen, X., Sun, Z., & Cabot, A. (2023) · ACS Nano · doi:10.1021/acsnano.3c05810 · Cited by 278
Metadata
- Authors
- Wang, H., Chen, Z.-N., Wu, D., Cao, M., Sun, F., Zhang, H., You, H., Zhuang, W., & Cao, R.
- Venue
- Journal of the American Chemical Society
- Publisher
- American Chemical Society (ACS)
- Published
- 2021-03-03
- Volume
- 143
- Issue
- 12
- Pages
- 4639-4645
- ISSN
- 0002-7863 (ISSN-L)
- 1520-5126
- OpenAlex
- W3134643107
- Cited by
- 284
- References
- 36
- FWCI
- 9.01
- Type
- journal article
- Language
- en
- Open access
- closed
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- Wang, H., Chen, Z.-N., Wu, D., Cao, M., Sun, F., Zhang, H., You, H., Zhuang, W., & Cao, R. (2021). Significantly Enhanced Overall Water Splitting Performance by Partial Oxidation of Ir through Au Modification in Core–Shell Alloy Structure. Journal of the American Chemical Society. https://doi.org/10.1021/jacs.0c12740
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