DC Field | Value | Language |
---|---|---|
dc.contributor.author | Naik, Brundabana | ko |
dc.contributor.author | Moon, Song Yi | ko |
dc.contributor.author | Kim, Sang Hoon | ko |
dc.contributor.author | Park, Jeong Young | ko |
dc.date.accessioned | 2016-04-20T06:14:11Z | - |
dc.date.available | 2016-04-20T06:14:11Z | - |
dc.date.created | 2015-11-30 | - |
dc.date.created | 2015-11-30 | - |
dc.date.issued | 2015-11 | - |
dc.identifier.citation | APPLIED SURFACE SCIENCE, v.354, pp.347 - 352 | - |
dc.identifier.issn | 0169-4332 | - |
dc.identifier.uri | http://hdl.handle.net/10203/205189 | - |
dc.description.abstract | We 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 degrees C (Pt-NHPT-300) have both macro- and mesoporosity, Pt-NHPT catalysts calcined at 800 degrees C (Pt-NHPT-800) exhibit only macroporosity. We found that Pt-NHPT-300 shows a two-fold higher H-2 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.language | English | - |
dc.publisher | ELSEVIER SCIENCE BV | - |
dc.subject | HOT-ELECTRON FLOW | - |
dc.subject | LIGHT IRRADIATION | - |
dc.subject | WATER | - |
dc.subject | PHOTOSYNTHESIS | - |
dc.subject | NANOPARTICLES | - |
dc.subject | NANODIODES | - |
dc.subject | FRAMEWORK | - |
dc.subject | SUNLIGHT | - |
dc.subject | PT/TIO2 | - |
dc.subject | PT/GAN | - |
dc.title | Enhanced photocatalytic generation of hydrogen by Pt-deposited nitrogen-doped TiO2 hierarchical nanostructures | - |
dc.type | Article | - |
dc.identifier.wosid | 000363673500016 | - |
dc.identifier.scopusid | 2-s2.0-84944275030 | - |
dc.type.rims | ART | - |
dc.citation.volume | 354 | - |
dc.citation.beginningpage | 347 | - |
dc.citation.endingpage | 352 | - |
dc.citation.publicationname | APPLIED SURFACE SCIENCE | - |
dc.identifier.doi | 10.1016/j.apsusc.2015.05.102 | - |
dc.contributor.localauthor | Park, Jeong Young | - |
dc.contributor.nonIdAuthor | Naik, Brundabana | - |
dc.contributor.nonIdAuthor | Kim, Sang Hoon | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | H-2 generation | - |
dc.subject.keywordAuthor | Photocatalysis | - |
dc.subject.keywordAuthor | Hot electron | - |
dc.subject.keywordAuthor | Hierarchical | - |
dc.subject.keywordAuthor | Macro-meso-micro porosity | - |
dc.subject.keywordPlus | HOT-ELECTRON FLOW | - |
dc.subject.keywordPlus | LIGHT IRRADIATION | - |
dc.subject.keywordPlus | WATER | - |
dc.subject.keywordPlus | PHOTOSYNTHESIS | - |
dc.subject.keywordPlus | NANOPARTICLES | - |
dc.subject.keywordPlus | NANODIODES | - |
dc.subject.keywordPlus | FRAMEWORK | - |
dc.subject.keywordPlus | SUNLIGHT | - |
dc.subject.keywordPlus | PT/TIO2 | - |
dc.subject.keywordPlus | PT/GAN | - |
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