Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kim, Keon-Han | - |
dc.contributor.author | Kim, Se-Jun | - |
dc.contributor.author | Choi, Won Ho | - |
dc.contributor.author | Lee, Heebin | - |
dc.contributor.author | Moon, Byeong Cheul | - |
dc.contributor.author | Kim, Gi Hwan | - |
dc.contributor.author | Choi, Jae Won | - |
dc.contributor.author | Park, Dong Gyu | - |
dc.contributor.author | Choi, Jong Hui | - |
dc.contributor.author | Kim, Hyungjun | - |
dc.contributor.author | Kang, Jeung Ku | - |
dc.date.accessioned | 2024-01-19T12:03:22Z | - |
dc.date.available | 2024-01-19T12:03:22Z | - |
dc.date.created | 2022-04-05 | - |
dc.date.issued | 2022-05 | - |
dc.identifier.issn | 1614-6832 | - |
dc.identifier.uri | https://pubs.kist.re.kr/handle/201004/115254 | - |
dc.description.abstract | The search for photocatalysts allowing the highly active, selective, and stable conversion of molecular oxygen into hydrogen peroxide is of worldwide interest. Here, the authors report the efficient conversion of O-2 into H2O2 with approximate to 100% selectivity and stable cycle stability by a triphasic metal oxide photocatalyst with a cobalt hydroxide carbonate nanosheet phase for water oxidation as well as iron oxide and titanium oxide phases of a core-shell morphology for charge transfer and oxygen reduction, denoted as CFT. The different surface energies of 0.78 (anatase) and 0.93 J m(-2) (rutile) for titanium oxide and 1.39 J m(-2) for iron oxide result in a core-shell morphology. The band gaps for iron oxide (2.02 eV), titanium oxide (approximate to 3 eV), and cobalt hydroxide carbonate (3.80 eV) sites reveal that the CFT photocatalyst allows visible-to-UV light absorption. The O-18(2) isotope-labeling experiments prove that the core-shell structure promotes hole transfer toward the water oxidation site. Additionally, the hole-induced H2O2 decomposition at the oxygen reduction site is efficiently hindered. Moreover, the photogenerated electrons transfer toward the oxygen reduction site to produce H2O2 from O-2 with approximate to 10-fold higher activity than those by conventional single- or dual-phase photocatalysts, while giving robust cycle stability. | - |
dc.language | English | - |
dc.publisher | Wiley-VCH Verlag | - |
dc.title | Triphasic Metal Oxide Photocatalyst for Reaction Site-Specific Production of Hydrogen Peroxide from Oxygen Reduction and Water Oxidation | - |
dc.type | Article | - |
dc.identifier.doi | 10.1002/aenm.202104052 | - |
dc.description.journalClass | 1 | - |
dc.identifier.bibliographicCitation | Advanced Energy Materials, v.12, no.18 | - |
dc.citation.title | Advanced Energy Materials | - |
dc.citation.volume | 12 | - |
dc.citation.number | 18 | - |
dc.description.isOpenAccess | N | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.identifier.wosid | 000760881500001 | - |
dc.identifier.scopusid | 2-s2.0-85125268917 | - |
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.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Energy & Fuels | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalResearchArea | Physics | - |
dc.type.docType | Article | - |
dc.subject.keywordPlus | GRAPHITIC CARBON NITRIDE | - |
dc.subject.keywordPlus | TOTAL-ENERGY CALCULATIONS | - |
dc.subject.keywordPlus | H2O2 | - |
dc.subject.keywordPlus | DRIVEN | - |
dc.subject.keywordPlus | GENERATION | - |
dc.subject.keywordAuthor | triphasic metal-oxide photocatalysts | - |
dc.subject.keywordAuthor | water oxidation | - |
dc.subject.keywordAuthor | charge transfer | - |
dc.subject.keywordAuthor | DFT simulations | - |
dc.subject.keywordAuthor | H | - |
dc.subject.keywordAuthor | O-2 | - |
dc.subject.keywordAuthor | (2) production | - |
dc.subject.keywordAuthor | in-situ experimental analysis | - |
dc.subject.keywordAuthor | oxygen reduction | - |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.