XAFS Study of a Au/Al2O3 Catalytic Nanosystem Doped by Ce and Ce-Zr Oxides | Sciact - CRIS-system of Boreskov Institute of Catalysis

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

Conference

XVII 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, Pr. Ak. Lavrentyeva, 5, Novosibirsk 630090, Russia
2	Centro de Nanociencias y Nanotecnologia, UNAM, Ensenada, BC, Mexico
3	Posgrado en Fisica de Materiales, CICESE, Ensenada, BC, Mexico
4	Posgrado en Ciencia e Ingenierı´a, Area Nanotecnologıa, UABC, Ensenada, BC, Me´xico

Funding (8)

1	Russian Foundation for Basic Research	06-03-33005
2	Russian Foundation for Basic Research	08-03-01150
3	Russian Foundation for Basic Research	08-03-91758
4	Russian Foundation for Basic Research	08-03-92502
5	Russian Foundation for Basic Research	09-03-01012
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

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.

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 WOS Scopus РИНЦ ANCAN OpenAlex

Published online:	Mar 9, 2009
Published print:	May 11, 2009

Web of science:	WOS:000266760800056
Scopus:	2-s2.0-65549127598
Elibrary:	13603989
Chemical Abstracts:	2009:569804
Chemical Abstracts (print):	152:154800
OpenAlex:	W2018495520

DB	Citing
Web of science	8
Scopus	8
Elibrary	10
OpenAlex	10