Water-splitting Performance of TiO_2 Nanotube Arrays Annealed in NH_3 Ambient
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 김세임 | - |
dc.contributor.author | 김성진 | - |
dc.contributor.author | 양비룡 | - |
dc.date.accessioned | 2023-12-11T12:00:33Z | - |
dc.date.available | 2023-12-11T12:00:33Z | - |
dc.date.issued | 2011 | - |
dc.identifier.issn | 1229-7801 | - |
dc.identifier.issn | 2234-0491 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/kumoh/handle/2020.sw.kumoh/23082 | - |
dc.description.abstract | Increase of surface area and decrease of band gap in TiO_2 semiconductors are significant to improve the efficiency of water splitting by photoelectrolysis. In this study TiO_2 nanotube arrays with ~7 um length and ~100 nm diameter were fabricated by an anodizing technique of titanium foils using DMSO (dimethyl sulfoxide)-based electrolytes. Then to control the band gap of the TiO_2 arrays, they were annealed at 550℃ for up to 180 min in NH_3 gas ambient. The samples annealed in NH_3 gas for 30 min and 60 min showed superior photo-conversion efficiency for water splitting under white and visible light. A TiO_2 nanotube annealed in NH_3 gas ambient for a period longer than 120 min showed 1 order higher leakage current. It is believed that the decrease of band gap and increase of conductivity in TiO_2 nanotube arrays due to NH_3 gas treatments result in the superior water-splitting performance. | - |
dc.format.extent | 5 | - |
dc.language | 영어 | - |
dc.language.iso | ENG | - |
dc.publisher | 한국세라믹학회 | - |
dc.title | Water-splitting Performance of TiO_2 Nanotube Arrays Annealed in NH_3 Ambient | - |
dc.type | Article | - |
dc.publisher.location | 대한민국 | - |
dc.identifier.bibliographicCitation | 한국세라믹학회지, v.48, no.2, pp 200 - 204 | - |
dc.citation.title | 한국세라믹학회지 | - |
dc.citation.volume | 48 | - |
dc.citation.number | 2 | - |
dc.citation.startPage | 200 | - |
dc.citation.endPage | 204 | - |
dc.identifier.kciid | ART001540502 | - |
dc.description.isOpenAccess | N | - |
dc.description.journalRegisteredClass | scopus | - |
dc.description.journalRegisteredClass | kci | - |
dc.subject.keywordAuthor | TiO_2 | - |
dc.subject.keywordAuthor | Nanotube | - |
dc.subject.keywordAuthor | Nitrogen doping | - |
dc.subject.keywordAuthor | Photocatalysis | - |
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