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https://hdl.handle.net/2440/112064
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dc.contributor.author | Liu, J. | - |
dc.contributor.author | Zheng, Y. | - |
dc.contributor.author | Jiao, Y. | - |
dc.contributor.author | Wang, Z. | - |
dc.contributor.author | Lu, Z. | - |
dc.contributor.author | Vasileff, A. | - |
dc.contributor.author | Qiao, S. | - |
dc.date.issued | 2018 | - |
dc.identifier.citation | Small, 2018; 14(16):1704073-1-1704073-10 | - |
dc.identifier.issn | 1613-6810 | - |
dc.identifier.issn | 1613-6829 | - |
dc.identifier.uri | http://hdl.handle.net/2440/112064 | - |
dc.description | Published online: March 15, 2018 | - |
dc.description.abstract | 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 RuO₂ 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 RuO₂ for enhanced OER, and NiO also promotes water dissociation for enhanced HER on RuO₂ -derived Ru. The resulting hybrid material exhibits remarkable bifunctional activities, affording 2.6 times higher OER activity than that of RuO₂ 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||IrO₂ /NF couple with high mass loading. Comprehensive electrochemical investigation reveals the unique and critical role of NiO on the optimized RuO₂ /NiO interface for synergistically enhanced activities, which may be extended to broader (electro)catalytic systems. | - |
dc.description.statementofresponsibility | Jinlong Liu, Yao Zheng, Yan Jiao, Zhenyu Wang, Zhouguang Lu, Anthony Vasileff, and Shi-Zhang Qiao | - |
dc.language.iso | en | - |
dc.publisher | Wiley-VCH Verlag GmbbH & Co. | - |
dc.rights | © 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim | - |
dc.source.uri | http://dx.doi.org/10.1002/smll.201704073 | - |
dc.subject | bifunctional promoters | - |
dc.subject | electrocatalysts | - |
dc.subject | nickel oxide | - |
dc.subject | ruthenium dioxide | - |
dc.subject | water splitting | - |
dc.title | NiO as a bifunctional promoter for RuO₂ toward superior overall water splitting | - |
dc.title.alternative | NiO as a bifunctional promoter for RuO(2) toward superior overall water splitting | - |
dc.type | Journal article | - |
dc.identifier.doi | 10.1002/smll.201704073 | - |
dc.relation.grant | http://purl.org/au-research/grants/arc/DP160104866 | - |
dc.relation.grant | http://purl.org/au-research/grants/arc/DP170104464 | - |
dc.relation.grant | http://purl.org/au-research/grants/arc/LP160100927 | - |
dc.relation.grant | http://purl.org/au-research/grants/arc/FL170100154 | - |
pubs.publication-status | Published | - |
dc.identifier.orcid | Liu, J. [0000-0002-4726-0972] | - |
dc.identifier.orcid | Zheng, Y. [0000-0002-2411-8041] | - |
dc.identifier.orcid | Jiao, Y. [0000-0003-1329-4290] | - |
dc.identifier.orcid | Vasileff, A. [0000-0003-1945-7740] | - |
dc.identifier.orcid | Qiao, S. [0000-0002-1220-1761] [0000-0002-4568-8422] | - |
Appears in Collections: | Aurora harvest 3 Chemical Engineering publications |
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