Full metadata record
DC Field | Value | Language |
---|---|---|
dc.citation.endPage | 10444 | - |
dc.citation.number | 44 | - |
dc.citation.startPage | 10436 | - |
dc.citation.title | CHEMICAL SCIENCE | - |
dc.citation.volume | 10 | - |
dc.contributor.author | Zhang, Hemin | - |
dc.contributor.author | Park, Jong Hyun | - |
dc.contributor.author | Byun, Woojin | - |
dc.contributor.author | Song, Myoung Hoon | - |
dc.contributor.author | Lee, Jae Sung | - |
dc.date.accessioned | 2023-12-21T18:21:08Z | - |
dc.date.available | 2023-12-21T18:21:08Z | - |
dc.date.created | 2019-12-06 | - |
dc.date.issued | 2019-11 | - |
dc.description.abstract | A simple electrochemical activation treatment is proposed to improve effectively the photoelectrochemical performance of Nb,Sn co-doped hematite nanorods. The activation process involves an initial thrice cathodic scanning (reduction) and a subsequent thrice anodic scanning (oxidation), which modifies both the surface and bulk properties of the Nb,Sn:Fe2O3 photoanode. First, it selectively removes the surface components to different extents endowing the hematite surface with fewer defects and richer Nb-O and Sn-O bonds and thus passivates the surface trap states. The surface passivation effect also enhances the photoelectrochemical stability of the photoanode. Finally, more Fe2+ ions or oxygen vacancies are generated in the bulk of hematite to enhance its conductivity. As a result, the photocurrent density is increased by 62.3% from 1.88 to 3.05 mA cm(-2) at 1.23 V-RHE, the photocurrent onset potential shifts cathodically by similar to 70 mV, and photoelectrochemical stability improves remarkably relative to the pristine photoanode under simulated sunlight (100 mW cm(-2)). | - |
dc.identifier.bibliographicCitation | CHEMICAL SCIENCE, v.10, no.44, pp.10436 - 10444 | - |
dc.identifier.doi | 10.1039/c9sc04110a | - |
dc.identifier.issn | 2041-6520 | - |
dc.identifier.scopusid | 2-s2.0-85075066259 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/30606 | - |
dc.identifier.url | https://pubs.rsc.org/en/content/articlelanding/2019/SC/C9SC04110A#!divAbstract | - |
dc.identifier.wosid | 000497283300026 | - |
dc.language | 영어 | - |
dc.publisher | ROYAL SOC CHEMISTRY | - |
dc.title | Activating the surface and bulk of hematite photoanodes to improve solar water splitting | - |
dc.type | Article | - |
dc.description.isOpenAccess | TRUE | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.type.docType | Article | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordPlus | OXIDATION | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | DEPOSITION | - |
dc.subject.keywordPlus | SYSTEM | - |
dc.subject.keywordPlus | LAYER | - |
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