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https://hdl.handle.net/2440/118360
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dc.contributor.author | Shan, J. | - |
dc.contributor.author | Guo, C. | - |
dc.contributor.author | Zhu, Y. | - |
dc.contributor.author | Chen, S. | - |
dc.contributor.author | Song, L. | - |
dc.contributor.author | Jaroniec, M. | - |
dc.contributor.author | Zheng, Y. | - |
dc.contributor.author | Qiao, S.Z. | - |
dc.date.issued | 2019 | - |
dc.identifier.citation | Chem, 2019; 5(2):445-459 | - |
dc.identifier.issn | 2451-9308 | - |
dc.identifier.issn | 2451-9294 | - |
dc.identifier.uri | http://hdl.handle.net/2440/118360 | - |
dc.description.abstract | Achieving high activity and long-term stability is a major challenge in the design of catalysts. In particular, the oxygen evolution reaction (OER) in acidic media, which plays a key role in proton exchange membrane electrolyzers for fast hydrogen fuel generation, seriously suffers from rapid degradation of catalysts as a result of the harsh acidic and oxidative conditions. Here, we report a rational design strategy for the fabrication of a heterostructured OER electrocatalyst (Ru@IrOx) that has unique physicochemical properties and in which a strong charge redistribution exists between a highly strained ruthenium core and a partially oxidized iridium shell across the metal-metal oxide heterojunction. The increased valence of the iridium shell and the decreased valence of the ruthenium core activate a synergistic electronic and structural interaction, which results in the enhanced activity and stability of the catalyst compared with the majority of the state-of-the-art ruthenium- and iridium-based materials. | - |
dc.description.statementofresponsibility | Jieqiong Shan, Chunxian Guo, Yihan Zhu, Shuangming Chen, Li Song, Mietek Jaroniec, Yao Zheng, Shi-Zhang Qiao | - |
dc.language.iso | en | - |
dc.publisher | Cell Press; Elsevier | - |
dc.rights | © 2018 Elsevier Inc. | - |
dc.source.uri | http://dx.doi.org/10.1016/j.chempr.2018.11.010 | - |
dc.subject | Oxygen evolution reaction; acidic media; core-shell nanocrystal; ruthenium-iridium alloy; charge redistribution; activity; stability | - |
dc.title | Charge-redistribution-enhanced nanocrystalline Ru@IrOx electrocatalysts for oxygen evolution in acidic media | - |
dc.type | Journal article | - |
dc.identifier.doi | 10.1016/j.chempr.2018.11.010 | - |
dc.relation.grant | http://purl.org/au-research/grants/arc/FL170100154 | - |
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/DE160101163 | - |
dc.relation.grant | http://purl.org/au-research/grants/arc/DE160101293 | - |
pubs.publication-status | Published | - |
dc.identifier.orcid | Shan, J. [0000-0003-4308-5027] | - |
dc.identifier.orcid | Zheng, Y. [0000-0002-2411-8041] | - |
dc.identifier.orcid | Qiao, S.Z. [0000-0002-1220-1761] [0000-0002-4568-8422] | - |
Appears in Collections: | Aurora harvest 4 Chemical Engineering publications |
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