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XAFS Study of a Au/Al2O3 Catalytic Nanosystem Doped by Ce and Ce-Zr Oxides Full article

Общее Language: Английский, Genre: Full article,
Status: Published, Source type: Original
Conference 17th International Synchrotron Radiation Conference
15-20 Jun 2008 , Новосибирск
Journal Nuclear Instruments and Methods in Physics Research Section A
ISSN: 0168-9002
Output data Year: 2009, Volume: 603, Number: 1-2, Pages: 185-187 Pages count : 3 DOI: 10.1016/j.nima.2009.03.004
Tags EXAFS, Gold catalytic system, Local structure, Nanoparticle, XANES, XPS, XRD
Authors Kriventsov V.V. 1 , Simakova I.L. 1 , Simakov A.V. 2 , Smolentseva E. 2 , Castillon F. 2 , Estrada M. 3 , Vargas E. 4 , Yakimchuk E.P. 1 , Ivanov D.P. 1 , Aksenov D.G. 1 , Andreev D.V. 1 , Novgorodov B.N. 1 , Kochubey D.I. 1 , Fuentes S. 2
Affiliations
1 Boreskov Institute of Catalysis SB RAS
2 National Autonomous University of Mexico
3 Ensenada Center for Scientific Research and Higher Education
4 National Autonomous University of Mexico

Funding (8)

1 Russian Foundation for Basic Research 08-03-91758
2 Russian Foundation for Basic Research 08-03-92502
3 Russian Foundation for Basic Research 09-03-01012
4 Russian Foundation for Basic Research 06-03-33005
5 Russian Foundation for Basic Research 08-03-01150
6 National Autonomous University of Mexico 50547-Q
7 National Autonomous University of Mexico IN 110208
8 National Autonomous University of Mexico IN 120706-3

Abstract: This work is devoted to a structural study of the finely dispersed nanosized gold species supported on nanosized mixed oxides prepared by the sol–gel method. An analysis of the XANES (Au-L3) spectra has revealed mainly Au3+ cations located on the oxide matrix surface in distorted octahedral coordination for the catalysts reduced at 150 °C. For the catalysts reduced at 300 °C, a highly distorted metallic gold species has been mainly found, within the method limitation. The synthesized catalysts have also been characterized by transmission electron microscopy (TEM), BET, X-ray diffraction (XRD) and XPS.
Cite: Kriventsov V.V. , Simakova I.L. , Simakov A.V. , Smolentseva E. , Castillon F. , Estrada M. , Vargas E. , Yakimchuk E.P. , Ivanov D.P. , Aksenov D.G. , Andreev D.V. , Novgorodov B.N. , Kochubey D.I. , Fuentes S.
XAFS Study of a Au/Al2O3 Catalytic Nanosystem Doped by Ce and Ce-Zr Oxides
Nuclear Instruments and Methods in Physics Research Section A. 2009. V.603. N1-2. P.185-187. DOI: 10.1016/j.nima.2009.03.004 publication_identifier_short.wos_identifier_type publication_identifier_short.scopus_identifier_type publication_identifier_short.rinz_identifier_type
Dates:
Published online: Mar 9, 2009
Published print: May 11, 2009
Identifiers:
publication_identifier.wos_identifier_type WOS:000266760800056
publication_identifier.scopus_identifier_type 2-s2.0-65549127598
publication_identifier.rinz_identifier_type 13603989
publication_identifier.accession_number_identifier_type 2009:569804
publication_identifier.chemical_accession_number_identifier_type 152:154800
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