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DC Field | Value | Language |
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dc.citation.endPage | 1673 | - |
dc.citation.number | 5948 | - |
dc.citation.startPage | 1670 | - |
dc.citation.title | SCIENCE | - |
dc.citation.volume | 325 | - |
dc.contributor.author | Kwak, Jahun | - |
dc.contributor.author | Hu, Jianzhi | - |
dc.contributor.author | Mei, Donghai | - |
dc.contributor.author | Yi, Cheol-Woo | - |
dc.contributor.author | Kim, Do Heui | - |
dc.contributor.author | Peden, Charles H. F. | - |
dc.contributor.author | Allard, Lawrence F. | - |
dc.contributor.author | Szanyi, Janos | - |
dc.date.accessioned | 2023-12-22T07:40:13Z | - |
dc.date.available | 2023-12-22T07:40:13Z | - |
dc.date.created | 2015-07-21 | - |
dc.date.issued | 2009-09 | - |
dc.description.abstract | In many heterogeneous catalysts, the interaction of metal particles with their oxide support can alter the electronic properties of the metal and can play a critical role in determining particle morphology and maintaining dispersion. We used a combination of ultrahigh magnetic field, solid-state magic-angle spinning nuclear magnetic resonance spectroscopy, and high-angle annular dark-field scanning transmission electron microscopy coupled with density functional theory calculations to reveal the nature of anchoring sites of a catalytically active phase of platinum on the surface of a gamma-Al2O3 catalyst support material. The results obtained show that coordinatively unsaturated pentacoordinate Al3+ (Al-penta(3+)) centers present on the (100) facets of the gamma-Al2O3 surface are anchoring Pt. At low loadings, the active catalytic phase is atomically dispersed on the support surface (Pt/Al-penta(3+) = 1), whereas two-dimensional Pt rafts form at higher coverages | - |
dc.identifier.bibliographicCitation | SCIENCE, v.325, no.5948, pp.1670 - 1673 | - |
dc.identifier.doi | 10.1126/science.1176745 | - |
dc.identifier.issn | 0036-8075 | - |
dc.identifier.scopusid | 2-s2.0-70349558828 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/12319 | - |
dc.identifier.url | http://www.sciencemag.org/content/325/5948/1670 | - |
dc.identifier.wosid | 000270131800040 | - |
dc.language | 영어 | - |
dc.publisher | AMER ASSOC ADVANCEMENT SCIENCE | - |
dc.title.alternative | Coordinatively Unsaturated Al3+ Centers as Binding Sites for Active Catalyst Phases of Platinum on gamma-Al2O3 | - |
dc.title | Coordinatively Unsaturated Al3+ Centers as Binding Sites for Active Catalyst Phases of Platinum on gamma-Al2O3 | - |
dc.type | Article | - |
dc.description.journalRegisteredClass | scopus | - |
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