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Electrochemically generated electrophilic peroxo species accelerates alkaline oxygen evolution reaction
DC Field | Value | Language |
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dc.contributor.author | Lee, Hyeon Seok | - |
dc.contributor.author | Shin, Heejong | - |
dc.contributor.author | Park, Subin | - |
dc.contributor.author | Kim, Jiheon | - |
dc.contributor.author | Jung, Euiyeon | - |
dc.contributor.author | Hwang, Wonchan | - |
dc.contributor.author | Lee, Byoung-Hoon | - |
dc.contributor.author | Yoo, Ji Mun | - |
dc.contributor.author | Antink, Wytse Hooch | - |
dc.contributor.author | Lee, Kangjae | - |
dc.contributor.author | Lee, Seongbeom | - |
dc.contributor.author | Na, Geumbi | - |
dc.contributor.author | Suh, Kangmin | - |
dc.contributor.author | Kim, Young Seong | - |
dc.contributor.author | Lee, Kug-Seung | - |
dc.contributor.author | Yoo, Sung Jong | - |
dc.contributor.author | Sung, Yung-Eun | - |
dc.contributor.author | Hyeon, Taeghwan | - |
dc.date.accessioned | 2023-10-30T01:44:53Z | - |
dc.date.available | 2023-10-30T01:44:53Z | - |
dc.date.created | 2023-09-01 | - |
dc.date.issued | 2023-08 | - |
dc.identifier.citation | Joule, Vol.7 No.8, pp.1902-1919 | - |
dc.identifier.issn | 2542-4351 | - |
dc.identifier.uri | https://hdl.handle.net/10371/195840 | - |
dc.description.abstract | Introducing a new redox cycle into (electro)catalysts can activate reactants, enabling novel functionality. Here, we report that early transition metals (TMs) with vacant d orbitals (d0-oxoanions) directly participate in and accelerate the alkaline oxygen evolution reaction (OER) via a redox cycle associated with early TM-peroxo species [M-(O2)2−]. Interestingly, the metal-peroxo cycles both induced by hydrogen peroxide (H2O2) and OER intermediates have similar characteristics, making it possible to modulate the OER performance using d0-oxoanions that react with H2O2 as enhancers. This principle was successfully integrated into practical electrolysis systems with the anode side extended to typical OER catalysts. Among them, tungstate-modified iron-nickel (oxy)hydroxide (W/FeNiOOH) exhibited current densities of 7.87 and 4.26 A cmgeo−2 at 2.0 Vcell in water electrolysis while running in 1.0 M KOH and 1.0 wt % K2CO3 electrolyte, respectively. Our finding provides universal platforms demonstrating a controllable strategy toward electrochemical oxygen activation using the electrophilic peroxo cycle. | - |
dc.language | 영어 | - |
dc.publisher | CELL PRESS | - |
dc.title | Electrochemically generated electrophilic peroxo species accelerates alkaline oxygen evolution reaction | - |
dc.type | Article | - |
dc.identifier.doi | 10.1016/j.joule.2023.06.018 | - |
dc.citation.journaltitle | Joule | - |
dc.identifier.wosid | 001076600400001 | - |
dc.identifier.scopusid | 2-s2.0-85167789345 | - |
dc.citation.endpage | 1919 | - |
dc.citation.number | 8 | - |
dc.citation.startpage | 1902 | - |
dc.citation.volume | 7 | - |
dc.description.isOpenAccess | N | - |
dc.contributor.affiliatedAuthor | Sung, Yung-Eun | - |
dc.contributor.affiliatedAuthor | Hyeon, Taeghwan | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.subject.keywordPlus | OXYGEN-EVOLUTION | - |
dc.subject.keywordPlus | METAL-OXIDES | - |
dc.subject.keywordPlus | ACTIVE-SITE | - |
dc.subject.keywordPlus | COMPLEXES | - |
dc.subject.keywordPlus | CATALYST | - |
dc.subject.keywordPlus | ELECTROCATALYSTS | - |
dc.subject.keywordPlus | OXIDATION | - |
dc.subject.keywordPlus | TUNGSTATE | - |
dc.subject.keywordPlus | HYDROGEN | - |
dc.subject.keywordAuthor | anion-exchange membrane water electrolyzer | - |
dc.subject.keywordAuthor | in situ electrochemical spectroscopy | - |
dc.subject.keywordAuthor | metal hydroxide | - |
dc.subject.keywordAuthor | metal-peroxo species | - |
dc.subject.keywordAuthor | oxygen evolution reaction | - |
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