Sarode, P. R. ; Priolkar, K. R. ; Bera, Parthasarathi ; Hegde, M. S. ; Emura, S. ; Kumashiro, R. (2002) Study of local environment of Ag in Ag/CeO catalyst by EXAFS Materials Research Bulletin, 37 (9). pp. 1679-1690. ISSN 0025-5408
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Official URL: http://linkinghub.elsevier.com/retrieve/pii/S00255...
Related URL: http://dx.doi.org/10.1016/S0025-5408(02)00797-3
Abstract
The combustion synthesized Ag/CeO2 catalysts have been characterized by Extended X-ray Absorption Fine Structure (EXAFS) spectroscopy at the Ag K-edge. It has been found that Ag+ like species is present in 1% Ag/CeO2 catalyst, whereas mostly Ag metal clusters are found in 3% Ag/CeO2. The analysis of EXAFS spectra indicates that about one oxygen atom is coordinated to Ag central atom at a distance of 2.19 Å in 1% Ag/CeO2 catalyst along with eight coordinated Ag---Ag bond at 2.86 Å. The Ag---O bond is absent in 3% Ag/CeO2.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to Elsevier Science. |
| Keywords: | A. Inorganic Compounds; B. Chemical Synthesis; C. XAFS |
| ID Code: | 16204 |
| Deposited On: | 15 Nov 2010 14:02 |
| Last Modified: | 03 Jun 2011 07:40 |
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