Full metadata record

DC Field Value Language
dc.contributor.authorKim, Sun Mi-
dc.contributor.authorPark, Dahee-
dc.contributor.authorYuk, Youngji-
dc.contributor.authorKim, Sang Hoon-
dc.contributor.authorPark, Jeong Young-
dc.date.accessioned2024-01-20T12:03:21Z-
dc.date.available2024-01-20T12:03:21Z-
dc.date.created2021-09-01-
dc.date.issued2013-07-
dc.identifier.issn1359-6640-
dc.identifier.urihttps://pubs.kist.re.kr/handle/201004/127941-
dc.description.abstractWe report the hot carrier-driven catalytic activity of two-dimensional arrays of Pt nanoparticles on GaN substrate under light irradiation. In order to elucidate the effect of a hot carrier in a catalytic chemical reaction, the CO oxidation reaction was carried out on Pt nanoparticles on p-and n-type GaN under light irradiation. Metal catalysts composed of Pt nanoparticles were prepared using two different preparation methods: the one-pot polyol reduction and arc plasma deposition methods. Under light irradiation, the catalytic activity of the Pt nanoparticles supported on GaN exhibited a distinct change depending on the doping type. The catalytic activity of the Pt nanoparticles on the n-doped GaN wafer decreased by 8-28% under light irradiation, compared to no irradiation (i.e., in the dark), while the Pt nanoparticles on the p-doped GaN wafer increased by 11-33% under light irradiation, compared to no irradiation. The catalytic activity increased on the smaller Pt nanoparticles, compared to the larger nanoparticles, presumably due to the mean free path of hot carriers. Based on these results, we conclude that the flow of hot carriers generated at the Pt-GaN interface during light irradiation is responsible for the change in catalytic activity on the Pt nanoparticles.-
dc.languageEnglish-
dc.publisherROYAL SOC CHEMISTRY-
dc.subjectMETAL-SUPPORT INTERACTIONS-
dc.subjectCO OXIDATION-
dc.subjectPLATINUM NANOPARTICLES-
dc.subjectCARBON-MONOXIDE-
dc.subjectELECTRON FLOW-
dc.subjectSURFACE-
dc.subjectSIZE-
dc.subjectGENERATION-
dc.subjectDIFFUSION-
dc.subjectNANODIODE-
dc.titleInfluence of hot carriers on catalytic reaction; Pt nanoparticles on GaN substrates under light irradiation-
dc.typeArticle-
dc.identifier.doi10.1039/c2fd20133j-
dc.description.journalClass1-
dc.identifier.bibliographicCitationFARADAY DISCUSSIONS, v.162, pp.355 - 364-
dc.citation.titleFARADAY DISCUSSIONS-
dc.citation.volume162-
dc.citation.startPage355-
dc.citation.endPage364-
dc.description.journalRegisteredClassscie-
dc.description.journalRegisteredClassscopus-
dc.identifier.wosid000321591000020-
dc.identifier.scopusid2-s2.0-84884862545-
dc.relation.journalWebOfScienceCategoryChemistry, Physical-
dc.relation.journalResearchAreaChemistry-
dc.type.docTypeArticle-
dc.subject.keywordPlusMETAL-SUPPORT INTERACTIONS-
dc.subject.keywordPlusCO OXIDATION-
dc.subject.keywordPlusPLATINUM NANOPARTICLES-
dc.subject.keywordPlusCARBON-MONOXIDE-
dc.subject.keywordPlusELECTRON FLOW-
dc.subject.keywordPlusSURFACE-
dc.subject.keywordPlusSIZE-
dc.subject.keywordPlusGENERATION-
dc.subject.keywordPlusDIFFUSION-
dc.subject.keywordPlusNANODIODE-
Appears in Collections:
KIST Article > 2013
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML

qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE