The DOI matches its Crossref record; 12 of the 12 references it cites were found in a registry or an index.
NiO as a Bifunctional Promoter for RuO2 toward Superior Overall Water Splitting
Open accessAbstract
Conventional development of nanomaterials for efficient electrocatalysis is largely based on performance‐oriented trial‐and‐error/iterative approaches, while a rational design approach at the atomic/molecular level is yet to be found. Here, inspired by a fundamental understanding of the mechanism for both oxygen and hydrogen evolution half reactions (OER/HER), a unique strategy is presented to engineer RuO 2 for superior alkaline water electrolysis through coupling with NiO as an efficient bifunctional promoter. Benefitting from desired potential‐induced interfacial synergies, NiO‐derived NiOOH improves the oxygen binding energy of RuO 2 for enhanced OER, and NiO also promotes water dissociation for enhanced HER on RuO 2‐derived Ru. The resulting hybrid material exhibits remarkable bifunctional activities, affording 2.6 times higher OER activity than that of RuO 2 and an HER activity comparable to Pt/C. As a result, the simple system requires only 1.5 V to deliver 10 mA cm−2 for overall alkaline water splitting, outperforming the benchmark PtC/NF||IrO 2/NF couple with high mass loading. Comprehensive electrochemical investigation reveals the unique and critical role of NiO on the optimized RuO 2/NiO interface for synergistically enhanced activities, which may be extended to broader (electro)catalytic systems.
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Cites
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Cited by
Metal oxide-based materials as an emerging family of hydrogen evolution electrocatalysts
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High-entropy materials for energy and electronic applications
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Engineering Ruthenium-Based Electrocatalysts for Effective Hydrogen Evolution Reaction
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Metadata
- Authors
- Liu, J., Zheng, Y., Jiao, Y., Wang, Z., Lu, Z., Vasileff, A., & Qiao, S.
- Venue
- Small
- Publisher
- Wiley
- Published
- 2018-03-15
- Volume
- 14
- Issue
- 16
- Pages
- e1704073-e1704073
- ISSN
- 1613-6810 (ISSN-L)
- 1613-6829
- OpenAlex
- W2791761965
- Cited by
- 286
- References
- 12
- FWCI
- 7.92
- Type
- journal article
- Language
- en
- Open access
- bronze
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