CO Oxidation Promoted by Gold Atoms Supported on Titanium Oxide Cluster Anions.
Laser ablation generated Au(TiO)O (x = 0, 1; y = 2, 3; z = 1, 2) oxide cluster anions have been mass-selected using a quadrupole mass filter and reacted with CO in a hexapole collision cell. The reactions have been characterized by time-of-flight mass spectrometry and density functional theory calcu...
| Publicado en: | Journal of the American Chemical Society Vol. 136; no. 9; pp. 3617 - 3624 |
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| Autores principales: | , , |
| Formato: | Artículo |
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American Chemical Society
3/5/2014
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=hlh&AN=95084499&site=ehost-live header: @attributes: shortDbName: hlh uiTerm: 95084499 longDbName: Humanities International Complete uiTag: AN controlInfo: bkinfo: jinfo: jid: 00027863 ACS jtl: Journal of the American Chemical Society issn: 00027863 maglogo: N pubinfo: dt: 3/5/2014 vid: 136 iid: 9 pid: 997 pub: American Chemical Society artinfo: ui: 95084499 10.1021/ja412608b ppf: 3617 ppct: 7 formats: tig: atl: CO Oxidation Promoted by Gold Atoms Supported on Titanium Oxide Cluster Anions. aug: au: Xiao-Na Li Zhen Yuan Sheng-Gui He affil: Beijing National Laboratory for Molecular Sciences, State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, People's Republic of China University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China su: Oxidation of carbon monoxide Gold Titanium oxides Metal clusters Anions Laser ablation Density functional theory Time-of-flight mass spectrometry sug: subj: Oxidation of carbon monoxide Gold Titanium oxides Metal clusters Anions Laser ablation Density functional theory Time-of-flight mass spectrometry ab: Laser ablation generated Au(TiO)O (x = 0, 1; y = 2, 3; z = 1, 2) oxide cluster anions have been mass-selected using a quadrupole mass filter and reacted with CO in a hexapole collision cell. The reactions have been characterized by time-of-flight mass spectrometry and density functional theory calculations. Gold-titanium bimetallic oxide clusters Au(TiO)O are more reactive in CO oxidation than pure titanium oxide clusters (TiO)O. The computational studies identify the dual roles that the gold atom plays in CO oxidation: functioning as a CO trapper and electron acceptor. Both factors are important for the high reactivity of Au(TiO)O clusters. To the best of our knowledge, this is the first example of CO oxidation by gold-containing heteronuclear oxide clusters, which provides molecular-level insights into the roles of gold in CO oxidation over oxide supports. pubtype: Academic Journal doctype: Article src: R language: English refInfo: copyright: @attributes: flag: Y dt: @attributes: year: 2014 holdings: @attributes: islocal: N |
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