Codoping titanium dioxide nanowires with tungsten and carbon for enhanced photoelectrochemical performance
DC Field | Value | Language |
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dc.contributor.author | Cho, In Sun | - |
dc.contributor.author | Lee, Chi Hwan | - |
dc.contributor.author | Feng, Yunzhe | - |
dc.contributor.author | Logar, Manca | - |
dc.contributor.author | Rao, Pratap M. | - |
dc.contributor.author | Cai, Lili | - |
dc.contributor.author | Kim, Dong Rip | - |
dc.contributor.author | Sinclair, Robert | - |
dc.contributor.author | Zheng, Xiaolin | - |
dc.date.accessioned | 2022-07-16T10:25:15Z | - |
dc.date.available | 2022-07-16T10:25:15Z | - |
dc.date.created | 2021-05-12 | - |
dc.date.issued | 2013-04 | - |
dc.identifier.issn | 2041-1723 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/163056 | - |
dc.description.abstract | Recent density-functional theory calculations suggest that codoping TiO2 with donor-acceptor pairs is more effective than monodoping for improving photoelectrochemical water-splitting performance because codoping can reduce charge recombination, improve material quality, enhance light absorption and increase solubility limits of dopants. Here we report a novel ex-situ method to codope TiO2 with tungsten and carbon (W, C) by sequentially annealing W-precursor-coated TiO2 nanowires in flame and carbon monoxide gas. The unique advantages of flame annealing are that the high temperature (>1,000 degrees C) and fast heating rate of flame enable rapid diffusion of W into TiO2 without damaging the nanowire morphology and crystallinity. This is the first experimental demonstration that codoped TiO2:(W, C) nanowires outperform monodoped TiO2:W and TiO2:C and double the saturation photocurrent of undoped TiO2 for photoelectrochemical water splitting. Such significant performance enhancement originates from a greatly improved electrical conductivity and activity for oxygen-evolution reaction due to the synergistic effects of codoping. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | NATURE RESEARCH | - |
dc.title | Codoping titanium dioxide nanowires with tungsten and carbon for enhanced photoelectrochemical performance | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Kim, Dong Rip | - |
dc.identifier.doi | 10.1038/ncomms2729 | - |
dc.identifier.scopusid | 2-s2.0-84877724317 | - |
dc.identifier.wosid | 000318872100080 | - |
dc.identifier.bibliographicCitation | NATURE COMMUNICATIONS, v.4, pp.1 - 10 | - |
dc.relation.isPartOf | NATURE COMMUNICATIONS | - |
dc.citation.title | NATURE COMMUNICATIONS | - |
dc.citation.volume | 4 | - |
dc.citation.startPage | 1 | - |
dc.citation.endPage | 10 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | N | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Science & Technology - Other Topics | - |
dc.relation.journalWebOfScienceCategory | Multidisciplinary Sciences | - |
dc.subject.keywordPlus | DOPED TIO2 | - |
dc.subject.keywordPlus | WATER | - |
dc.subject.keywordPlus | HYDROGEN | - |
dc.subject.keywordPlus | PHOTOCATALYSIS | - |
dc.subject.keywordPlus | DEGRADATION | - |
dc.subject.keywordPlus | EFFICIENT | - |
dc.subject.keywordPlus | NANORODS | - |
dc.identifier.url | https://www.nature.com/articles/ncomms2729 | - |
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