Enhancing the Catalytic Kinetics and Stability of Ru Sites for Acidic Water Oxidation by Forming Brønsted Acid Sites in Tungsten Oxide Matrix
DC Field | Value | Language |
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dc.contributor.author | Wang, Xuefeng | - |
dc.contributor.author | Jang, Haeseong | - |
dc.contributor.author | Liu, Shangguo | - |
dc.contributor.author | Li, Zijian | - |
dc.contributor.author | Zhao, Xuhao | - |
dc.contributor.author | Chen, Yunfei | - |
dc.contributor.author | Kim, Min Gyu | - |
dc.contributor.author | Qin, Qing | - |
dc.contributor.author | Liu, Xien | - |
dc.date.accessioned | 2024-01-08T06:58:53Z | - |
dc.date.available | 2024-01-08T06:58:53Z | - |
dc.date.issued | 2023-09 | - |
dc.identifier.issn | 1614-6832 | - |
dc.identifier.issn | 1614-6840 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/69474 | - |
dc.description.abstract | The oxygen evolution reaction (OER) suffers from sluggish kinetics even on the benchmark RuO2 catalyst, due to the complex four sequential proton-coupled electron transfer steps. Severe electrochemical oxidation and dissolution issues also make RuO2 fail as an alternative to highly expensive iridium-based OER catalysts applied in proton exchange membrane water electrolysis. Herein, an acid-stable W18O49-δ matrix-confined Ru solid solution oxide is developed with considerably reduced Ru loadings beyond commercial RuO2, to enhance the acidic OER kinetics and extend the long-term durability simultaneously by incorporating Brønsted acid sites. The representative Ru0.6W17.4O49-δ with 3D urchin-like morphology achieves an excellent catalytic stability with ultra-slow degradation rate and a high mass activity of 27 110 A g−1Ru @ 1.53 V versus RHE in 0.1 m HClO4 electrolyte, which is ≈10.8 times higher than that of commercial RuO2. The enhanced electron transfer from W to Ru during the OER process prevents the over-oxidation of surface Ru sites extending the long-term stability, while the incorporated Ru-Obri-W Brønsted acid sites accelerate the deprotonation step by promoting the mobility of proton from the oxo-intermediate to the neighboring Obri sites, thus boosting the acidic OER kinetics. © 2023 Wiley-VCH GmbH. | - |
dc.language | 영어 | - |
dc.language.iso | ENG | - |
dc.publisher | John Wiley and Sons Inc | - |
dc.title | Enhancing the Catalytic Kinetics and Stability of Ru Sites for Acidic Water Oxidation by Forming Brønsted Acid Sites in Tungsten Oxide Matrix | - |
dc.type | Article | - |
dc.identifier.doi | 10.1002/aenm.202301673 | - |
dc.identifier.bibliographicCitation | Advanced Energy Materials, v.13, no.36 | - |
dc.description.isOpenAccess | N | - |
dc.identifier.wosid | 001043165400001 | - |
dc.identifier.scopusid | 2-s2.0-85166914918 | - |
dc.citation.number | 36 | - |
dc.citation.title | Advanced Energy Materials | - |
dc.citation.volume | 13 | - |
dc.type.docType | Article | - |
dc.publisher.location | 독일 | - |
dc.subject.keywordAuthor | acidic oxygen evolution reaction | - |
dc.subject.keywordAuthor | Brønsted acid sites | - |
dc.subject.keywordAuthor | durability | - |
dc.subject.keywordAuthor | oxidation resistance | - |
dc.subject.keywordAuthor | reaction kinetics | - |
dc.subject.keywordPlus | OXYGEN EVOLUTION | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | NANOWIRES | - |
dc.subject.keywordPlus | EFFICIENT | - |
dc.subject.keywordPlus | CONSTRUCTION | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Energy & Fuels | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalResearchArea | Physics | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical | - |
dc.relation.journalWebOfScienceCategory | Energy & Fuels | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Physics, Applied | - |
dc.relation.journalWebOfScienceCategory | Physics, Condensed Matter | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
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