The DOI matches its Crossref record; 74 of the 74 references it cites were found in a registry or an index.
Amorphous nickel hydroxide shell tailors local chemical environment on platinum surface for alkaline hydrogen evolution reaction
Open accessAbstract
In analogy to natural enzymes, an elaborated design of catalytic systems with a specifically tailored local chemical environment could substantially improve reaction kinetics, effectively combat catalyst poisoning effect and boost catalyst lifetime under unfavourable reaction conditions. Here we report a unique design of 'Ni(OH)2-clothed Pt-tetrapods' with an amorphous Ni(OH)2 shell as a water dissociation catalyst and a proton conductive encapsulation layer to isolate the Pt core from bulk alkaline electrolyte while ensuring efficient proton supply to the active Pt sites. This design creates a favourable local chemical environment to result in acidic-like hydrogen evolution reaction kinetics with a lowest Tafel slope of 27 mV per decade and a record-high specific activity and mass activity in alkaline electrolyte. The proton conductive Ni(OH)2 shell can also effectively reject impurity ions and retard the Oswald ripening, endowing a high tolerance to solution impurities and exceptional long-term durability that is difficult to achieve in the naked Pt catalysts. The markedly improved hydrogen evolution reaction activity and durability in an alkaline medium promise an attractive catalyst material for alkaline water electrolysers and renewable chemical fuel generation.
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“The much higher Tafel slopes observed for Pt/C and HEA/C are consistent with the Volmer- or Heyrovsky-limited kinetics typically expected in alkaline electrolyte, while the markedly reduced Tafel slope of the HEA|Pt aerogel suggests a shift toward a distinct Tafel-step limited pathway.47”
From High-Entropy Alloy Aerogels with High-Density Solid–Solid Heterointerfaces for Alkaline Hydrogen Evolution (2026) · cites this paper as [47]
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Zhang, B., Wang, J., Liu, G., Weiss, C. M., Liu, D., Chen, Y., Xia, L., Zhou, P., Gao, M., Liu, Y., et al. (2024) · Nature Catalysis · doi:10.1038/s41929-024-01126-3 · Cited by 567
Zhu, Y., Klingenhof, M., Gao, C., Koketsu, T., Weiser, G., Pi, Y., Liu, S., Sui, L., Hou, J., Li, J., et al. (2024) · Nature Communications · doi:10.1038/s41467-024-45654-9 · Cited by 471
Local reaction environment in electrocatalysis
Chen, C., Jin, H., Wang, P., Sun, X., Jaroniec, M., Zheng, Y., & Qiao, S. (2024) · Chemical Society Reviews · doi:10.1039/d3cs00669g · Cited by 401
Gao, X., Chen, Y., Wang, Y., Zhao, L., Zhao, X., Du, J., Wu, H., & Chen, A. (2024) · Nano-Micro Letters · doi:10.1007/s40820-024-01424-2 · Cited by 392
Unraveling and Resolving the Inconsistencies in Tafel Analysis for Hydrogen Evolution Reactions
Wan, C., Ling, Y., Wang, S., Pu, H., Huang, Y., & Duan, X. (2024) · ACS Central Science · doi:10.1021/acscentsci.3c01439 · Cited by 258
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Metadata
- Authors
- Wan, C., Zhang, Z., Dong, J., Xu, M., Pu, H., Baumann, D., Lin, Z., Wang, S., Huang, J., Shah, A. H., Pan, X., Hu, T., Alexandrova, A. N., Huang, Y., & Duan, X.
- Affiliations
- University of California, Los Angeles (US)
- Chinese Academy of Sciences (CN)
- University of California, Irvine (US)
- California NanoSystems Institute (US)
- Corresponding author
- Alexandrova, Anastassia N.
- Huang, Yu
- Duan, Xiangfeng
- ORCID
- Venue
- Nature Materials
- Published
- 2023-06-22
- Volume
- 22
- Issue
- 8
- Pages
- 1022-1029
- ISSN
- 1476-1122 (ISSN-L)
- 1476-4660
- OpenAlex
- W4381612401
- Cited by
- 404
- References
- 74
- Citations by year
- 2026: 103 · 2025: 156 · 2024: 129 · 2023: 16
- FWCI
- 19.31
- Type
- journal article
- Language
- en
- Open access
- green
- escholarship.org
- Licence
- Locations
- Nature Materials (publishedVersion)
- PubMed (publishedVersion)
- eScholarship (California Digital Library) (submittedVersion)
- OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) (submittedVersion)
- Funders
- NSF | Directorate for Mathematical & Physical Sciences | Division of Chemistry (1800580)
- Topics
- Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Electrocatalysts for Energy Conversion
- Physical Sciences › Engineering › Electrical and Electronic Engineering › Fuel Cells and Related Materials
- Physical Sciences › Materials Science › Materials Chemistry › Hydrogen Storage and Materials
- Keywords
- platinum catalysts, alkaline hydrogen evolution reaction, local chemical environment, proton conduction, water dissociation, catalyst stability, Ostwald ripening, alkaline water electrolysis, Tafel slope, mass activity
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