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DC Field | Value | Language |
---|---|---|
dc.citation.startPage | 2311172 | - |
dc.citation.title | SMALL | - |
dc.contributor.author | Zhao, Xuhao | - |
dc.contributor.author | Li, Zijian | - |
dc.contributor.author | Jang, Haeseong | - |
dc.contributor.author | Wei, Xiaoqian | - |
dc.contributor.author | Wang, Liu | - |
dc.contributor.author | Kim, Min Gyu | - |
dc.contributor.author | Cho, Jaephil | - |
dc.contributor.author | Liu, Xien | - |
dc.contributor.author | Qin, Qing | - |
dc.date.accessioned | 2024-03-04T10:35:11Z | - |
dc.date.available | 2024-03-04T10:35:11Z | - |
dc.date.created | 2024-02-27 | - |
dc.date.issued | 2024-02 | - |
dc.description.abstract | Ruthenium oxide is currently considered as the promising alternative to Ir-based catalysts employed for proton exchange membrane water electrolyzers but still faces the bottlenecks of limited durability and slow kinetics. Herein, a 2D amorphous/crystalline heterophase ac-Cr0.53Ru0.47O2-delta substitutional solid solution with pervasive grain boundaries (GBs) is developed to accelerate the kinetics of acidic oxygen evolution reaction (OER) and extend the long-term stability simultaneously. The ac-Cr0.53Ru0.47O2-delta shows a super stability with a slow degradation rate and a remarkable mass activity of 455 A gRu-1 at 1.6 V vs RHE, which is approximate to 3.6- and 5.9-fold higher than those of synthesized RuO2 and commercial RuO2, respectively. The strong interaction of Cr-O-Ru local units in synergy with the specific 2D structural characteristics of ac-Cr0.53Ru0.47O2-delta dominates its enhanced stability. Meanwhile, high-density GBs and the shortened Ru-O bonds tailored by amorphous/crystalline structure and Cr-O-Ru interaction regulate the adsorption and desorption rates of oxygen intermediates, thus accelerating the overall acidic OER kinetics. A 2D amorphous/crystalline ac-Cr0.53Ru0.47O2-delta exhibits superior activity for the OER in an acid medium, in which high-density grain boundaries and tailored RuO bonds synergistically facilitate the adsorption and desorption of oxygen intermediates, thus significantly boosting the catalytic kinetics and durability. image | - |
dc.identifier.bibliographicCitation | SMALL, pp.2311172 | - |
dc.identifier.doi | 10.1002/smll.202311172 | - |
dc.identifier.issn | 1613-6810 | - |
dc.identifier.scopusid | 2-s2.0-85184680874 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/81502 | - |
dc.identifier.wosid | 001160877200001 | - |
dc.language | 영어 | - |
dc.publisher | WILEY-V C H VERLAG GMBH | - |
dc.title | 2D Ruthenium-Chromium Oxide with Rich Grain Boundaries Boosts Acidic Oxygen Evolution Reaction Kinetics | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter | - |
dc.relation.journalResearchArea | Chemistry; Science & Technology - Other Topics; Materials Science; Physics | - |
dc.type.docType | Article; Early Access | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordAuthor | durability | - |
dc.subject.keywordAuthor | grain boundaries | - |
dc.subject.keywordAuthor | kinetics | - |
dc.subject.keywordAuthor | metal-oxygen bonds | - |
dc.subject.keywordAuthor | oxygen evolution reaction | - |
dc.subject.keywordPlus | DEFECT-RICH | - |
dc.subject.keywordPlus | NANOSHEETS | - |
dc.subject.keywordPlus | STRAIN | - |
dc.subject.keywordPlus | ELECTROCATALYST | - |
dc.subject.keywordPlus | CATALYST | - |
dc.subject.keywordPlus | RUO2 | - |
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