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Titolo:
Modeling heterogeneous catalysts: metal clusters on planar oxide supports
Autore:
Chusuei, CC; Lai, X; Luo, K; Goodman, DW;
Indirizzi:
Texas A&M Univ, Dept Chem, College Stn, TX 77842 USA Texas A&M Univ College Stn TX USA 77842 t Chem, College Stn, TX 77842 USA
Titolo Testata:
TOPICS IN CATALYSIS
fascicolo: 1-4, volume: 14, anno: 2001,
pagine: 71 - 83
SICI:
1022-5528(2001)14:1-4<71:MHCMCO>2.0.ZU;2-B
Fonte:
ISI
Lingua:
ENG
Soggetto:
CARBON-MONOXIDE OXIDATION; TEMPERATURE CO OXIDATION; SCANNING-TUNNELING-MICROSCOPY; PROMOTED SILVER PARTICLES; ELECTRONIC-STRUCTURE; AU/TIO2 CATALYSTS; ALPHA-ALUMINA; AG/ALPHA-AL2O3 CATALYSTS; TIO2(110) SURFACES; VAPOR-DEPOSITION;
Keywords:
metal clusters; activity; quantum size effects; thin film oxides; Au; Ag; TiO2; SiO2; Al2O3; TPD; XPS; LEIS; STM; STS;
Tipo documento:
Review
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
101
Recensione:
Indirizzi per estratti:
Indirizzo: Goodman, DW Texas A&M Univ, Dept Chem, POB 30012, College Stn, TX 77842 USA Texas A&M Univ POB 30012 College Stn TX USA 77842 TX 77842 USA
Citazione:
C.C. Chusuei et al., "Modeling heterogeneous catalysts: metal clusters on planar oxide supports", TOP CATAL, 14(1-4), 2001, pp. 71-83

Abstract

Model catalysts consisting of Au and Ag clusters of varying size have beenprepared on single crystal TiO2(110) and ultra-thin Trims of TiO2. SiO2 and Al2O3. The morphology, electronic structure, and catalytic properties of these Au and Ag clusters have been investigated using low-energy ion scattering spectroscopy (LEIS). temperature-programmed desorption (TPD), X-ray photoelectron spectroscopy (XPS) and scanning tunneling microscopy (STM) and spectroscopy (STS) with emphasis on the unique properties of clusters <5.0 nm in size. Motivating this work is the recent literature report that gold supported on TiO2 is active for various reactions including low-temperatureCO oxidation and the selective oxidation of propylene. These studies illustrate the novel and unique physical and chemical properties of nanosized supported metal esters.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 19/09/20 alle ore 21:19:47