DC Field | Value | Language |
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dc.contributor.author | Jeon, Tae Hwa | - |
dc.contributor.author | Han, Seungmok | - |
dc.contributor.author | Kim, Bupmo | - |
dc.contributor.author | Park, Cheolwoo | - |
dc.contributor.author | Kim, Wooyul | - |
dc.contributor.author | Park, Hyunwoong | - |
dc.contributor.author | Choi, Wonyong | - |
dc.date.accessioned | 2023-03-03T00:51:05Z | - |
dc.date.available | 2023-03-03T00:51:05Z | - |
dc.date.created | 2022-03-03 | - |
dc.date.issued | 2022-01 | - |
dc.identifier.issn | 2380-8195 | - |
dc.identifier.uri | https://oasis.postech.ac.kr/handle/2014.oak/116427 | - |
dc.description.abstract | © 2021 American Chemical SocietyFe3+ is widely used as a conduction band electron acceptor in the photocatalytic and photoelectrochemical (PEC) oxidation of water and various substrates. However, a question of the possible involvement of Fe3+ as a valence band hole acceptor has been raised. Herein, we demonstrate that the PEC water oxidation using oxide semiconductor (WO3, TiO2, and BiVO4; primarily WO3) films can proceed via the formation of high-valent iron species in the presence of aqueous Fe3+ ions at pH 1–3. The presence of Fe3+ (1–100 mM) enhances the photocurrent generation, O2 evolution, and the Faradaic efficiency (FE) of ∼90% with a biased WO3 electrode (1.23–1.88 VRHE), whereas the formation of Fe2+ is significantly inhibited. An in situ transient absorption spectroscopic analysis reveals the formation of high-valent iron species. The selective oxidation of dimethyl sulfoxide to dimethyl sulfone using in situ high-valent iron species is achieved with an FE of ∼98% in the PEC reaction with Fe3+. The proposed reaction mechanism should call for attention to the conventional role of Fe3+ in the PEC reaction. | - |
dc.language | English | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.relation.isPartOf | Acs Energy Letters | - |
dc.title | High-Valent Iron Redox-Mediated Photoelectrochemical Water Oxidation | - |
dc.type | Article | - |
dc.identifier.doi | 10.1021/acsenergylett.1c02430 | - |
dc.type.rims | ART | - |
dc.identifier.bibliographicCitation | Acs Energy Letters, v.7, no.1, pp.59 - 66 | - |
dc.identifier.wosid | 000769973900009 | - |
dc.citation.endPage | 66 | - |
dc.citation.number | 1 | - |
dc.citation.startPage | 59 | - |
dc.citation.title | Acs Energy Letters | - |
dc.citation.volume | 7 | - |
dc.contributor.affiliatedAuthor | Jeon, Tae Hwa | - |
dc.contributor.affiliatedAuthor | Han, Seungmok | - |
dc.contributor.affiliatedAuthor | Kim, Bupmo | - |
dc.contributor.affiliatedAuthor | Choi, Wonyong | - |
dc.identifier.scopusid | 2-s2.0-85121003186 | - |
dc.description.journalClass | 1 | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | N | - |
dc.type.docType | Article | - |
dc.subject.keywordPlus | ELECTROCHEMICAL GENERATION | - |
dc.subject.keywordPlus | HYDROGEN-PEROXIDE | - |
dc.subject.keywordPlus | IRON(III) IONS | - |
dc.subject.keywordPlus | NITRIC-ACID | - |
dc.subject.keywordPlus | WO3 | - |
dc.subject.keywordPlus | OXYGEN | - |
dc.subject.keywordPlus | FERRATE | - |
dc.subject.keywordPlus | PHENOL | - |
dc.subject.keywordPlus | TIO2 | - |
dc.subject.keywordPlus | DEGRADATION | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical | - |
dc.relation.journalWebOfScienceCategory | Electrochemistry | - |
dc.relation.journalWebOfScienceCategory | Energy & Fuels | - |
dc.relation.journalWebOfScienceCategory | Nanoscience & Nanotechnology | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Electrochemistry | - |
dc.relation.journalResearchArea | Energy & Fuels | - |
dc.relation.journalResearchArea | Science & Technology - Other Topics | - |
dc.relation.journalResearchArea | Materials Science | - |
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