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나노물질및화학반응연구단
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Enhanced photocatalytic generation of hydrogen by Pt-deposited nitrogen-doped TiO2 hierarchical nanostructures

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dc.contributor.authorBrundabana Naik-
dc.contributor.authorSong Yi Moon-
dc.contributor.authorSang Hoon Kim-
dc.contributor.authorJeong Young Park-
dc.date.available2016-01-07T09:10:15Z-
dc.date.created2015-10-08-
dc.date.issued2015-11-
dc.identifier.issn0169-4332-
dc.identifier.urihttps://pr.ibs.re.kr/handle/8788114/1847-
dc.description.abstractWe report the photocatalytic activity of hydrogen generation on Pt nanoparticles deposited on hierarchically porous N-doped TiO2 nanostructures (Pt-NHPT). The photocatalysts are composed of Pt nanoparticles well dispersed throughout hierarchical macroporous TiO2 fibrous channels. The interstitial N doping extends light absorption toward the visible region. We found that the porosity of N-doped TiO2 nanostructures can be tuned using different annealing temperatures. While Pt-NHPT catalysts calcined at 300 °C (Pt-NHPT-300) have both macro- and mesoporosity, Pt-NHPT catalysts calcined at 800 °C (Pt-NHPT-800) exhibit only macroporosity. We found that Pt-NHPT-300 shows a two-fold higher H2 evolution activity than that of Pt-NHPT-800, and 30% higher activity than undoped hierarchical catalysts (Pt-HPT-300). The enhanced photoactivity is attributed to the synergistic effects of N doping, hierarchical porosity, and charge transfer between the TiO2 nanostructures and the Pt co-catalyst.-
dc.description.uri1-
dc.language영어-
dc.publisherELSEVIER SCIENCE BV-
dc.subjectH2generation, Photocatalysis, Hot electron, Hierarchical, Macro–meso–micro porosity-
dc.titleEnhanced photocatalytic generation of hydrogen by Pt-deposited nitrogen-doped TiO2 hierarchical nanostructures-
dc.typeArticle-
dc.type.rimsART-
dc.identifier.wosid000363673500016-
dc.identifier.scopusid2-s2.0-84944275030-
dc.identifier.rimsid21330ko
dc.date.tcdate2018-10-01-
dc.contributor.affiliatedAuthorBrundabana Naik-
dc.contributor.affiliatedAuthorSong Yi Moon-
dc.contributor.affiliatedAuthorJeong Young Park-
dc.identifier.doi10.1016/j.apsusc.2015.05.102-
dc.identifier.bibliographicCitationAPPLIED SURFACE SCIENCE, v.354, pp.347 - 352-
dc.citation.titleAPPLIED SURFACE SCIENCE-
dc.citation.volume354-
dc.citation.startPage347-
dc.citation.endPage352-
dc.date.scptcdate2018-10-01-
dc.description.wostc20-
dc.description.scptc24-
dc.description.journalClass1-
dc.description.journalRegisteredClassscie-
dc.description.journalRegisteredClassscopus-
Appears in Collections:
Center for Nanomaterials and Chemical Reactions(나노물질 및 화학반응 연구단) > 1. Journal Papers (저널논문)
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