Influence of Modifying Additives on Electronic State of Supported Gold
Full article
| Общее |
Language:
Английский,
Genre:
Full article,
Status:
Published,
Source type:
Original
|
| Journal |
Journal of Molecular Structure
ISSN: 0022-2860
|
| Output data |
Year: 2002,
Volume: 642,
Number: 1-3,
Pages: 129-136
Pages count
: 8
DOI:
10.1016/S0022-2860(02)00402-7
|
| Tags |
Electronic states, Gold catalysts, IR spectroscopy, UV-Visible spectroscopy |
| Authors |
Pestryakov A.N.
1
,
Lunin V.V.
2
,
Kharlanov A.N.
2
,
Kochubey D.I.
3
,
Bogdanchikova N.E.
4
,
Stakheev A.Y.
5
|
| Affiliations |
| 1 |
Department of Organic Chemistry, Tomsk Polytechnic University, Lenin avenue 30, Tomsk 634034, Russian Federation
|
| 2 |
Department of Chemistry, Moscow State University, Moscow 119899, Russian Federation
|
| 3 |
Boreskov Institute of Catalysis, Novosibirsk 630090, Russian Federation
|
| 4 |
Centro de Ciencias de la Materia Condensada, Ensenada 22800, Mexico
|
| 5 |
Institute of Organic Chemistry, Moscow 119899, Russian Federation
|
|
Funding (3)
|
1
|
National Autonomous University of Mexico
|
115800
|
|
2
|
National Autonomous University of Mexico
|
31366-U
|
|
3
|
Council for Grants of the President of the Russian Federation
|
02-15-99360
|
Using the methods of IR spectroscopy of adsorbed CO, electron spectroscopy of diffuse reflectance, XRD, XPS, EXAFS and electron microscopy the influence of modifying additions of Ce, Zr, La and Cs oxides on the surface electronic states of supported gold have been studied. The additions of Ce and Zr oxides stabilize the ionic states of supported gold and increase the effective charge of the ions. In contrast, La and Cs oxides lower the effective charge of gold cation and favor their fast reduction.