DC Field | Value | Language |
---|---|---|
dc.contributor.author | Bae, Junemin | ko |
dc.contributor.author | Kim, Jiwhan | ko |
dc.contributor.author | Jeong, Hojin | ko |
dc.contributor.author | Lee, Hyunjoo | ko |
dc.date.accessioned | 2018-03-21T02:22:57Z | - |
dc.date.available | 2018-03-21T02:22:57Z | - |
dc.date.created | 2018-02-27 | - |
dc.date.created | 2018-02-27 | - |
dc.date.created | 2018-02-27 | - |
dc.date.issued | 2018-02 | - |
dc.identifier.citation | CATALYSIS SCIENCE & TECHNOLOGY, v.8, no.3, pp.782 - 789 | - |
dc.identifier.issn | 2044-4753 | - |
dc.identifier.uri | http://hdl.handle.net/10203/240621 | - |
dc.description.abstract | Doping metal atoms into a host metal oxide lattice can enhance its catalytic activity by modulating the properties of surface oxygen. Here, Pt-doped antimony-tin oxide (Pt/Sb-SnO2) was compared with Pt-deposited tin oxide (Pt/SnO2) and Pt-deposited silica (Pt/SiO2) for the oxidation of CO and propylene. 0.1 wt% Pt was deposited in all three cases. High angle annular dark field scanning transmission electron microscopy images, diffuse reflectance infrared Fourier transform spectra, pulsed H-2 chemisorption results, and X-ray photoelectron spectra indicated that Pt/Sb-SnO2 has atomically doped Pt inside the SnO2 lattice while Pt/SnO2 has Pt nanoparticles covered with SnO2 layers and Pt/SiO2 has Pt nanoparticles exposed at the SiO2 surface. Pt/Sb-SnO2 showed the best activity for CO oxidation but the poorest activity for propylene oxidation. Propylene oxidation occurred the least on Pt/Sb-SnO2 due to the lack of surface Pt sites. CO temperature-programmed reduction and O-2 temperature-programmed desorption results revealed that surface oxygen is the most active on Pt/Sb-SnO2. The formation of carbonates during CO oxidation was monitored, and Pt/Sb-SnO2 showed the least amount of surface carbonates with enhanced activity and durability. Doping a minimal amount of precious metal can be an efficient strategy to control the properties of metal oxide catalysts. | - |
dc.language | English | - |
dc.publisher | ROYAL SOC CHEMISTRY | - |
dc.title | CO oxidation on SnO2 surfaces enhanced by metal doping | - |
dc.type | Article | - |
dc.identifier.wosid | 000424108400011 | - |
dc.identifier.scopusid | 2-s2.0-85041383857 | - |
dc.type.rims | ART | - |
dc.citation.volume | 8 | - |
dc.citation.issue | 3 | - |
dc.citation.beginningpage | 782 | - |
dc.citation.endingpage | 789 | - |
dc.citation.publicationname | CATALYSIS SCIENCE & TECHNOLOGY | - |
dc.identifier.doi | 10.1039/c7cy02108a | - |
dc.contributor.localauthor | Lee, Hyunjoo | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordPlus | LOW-TEMPERATURE CO | - |
dc.subject.keywordPlus | CATALYTIC-OXIDATION | - |
dc.subject.keywordPlus | CARBON-MONOXIDE | - |
dc.subject.keywordPlus | MIXED OXIDES | - |
dc.subject.keywordPlus | PROPYLENE OXIDATION | - |
dc.subject.keywordPlus | SUPPORTED CATALYSTS | - |
dc.subject.keywordPlus | PD CATALYSTS | - |
dc.subject.keywordPlus | TIN OXIDE | - |
dc.subject.keywordPlus | OXYGEN | - |
dc.subject.keywordPlus | DISPERSION | - |
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