Sarode, PR and Priolkar, KR and Bera, Parthasarathi and Hegde, MS and Emura, S and Kumashiro, R (2002) Study of local environment of Ag in Ag/CeO2 catalyst by EXAFS. In: Materials Research Bulletin, 37 (9). 1679-1690 .
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Abstract
The combustion synthesized Ag/CeO2 catalysts have been characterized by Extended Xray 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 Angstrom in 1% Ag/CeO2 catalyst along with eight coordinated Ag-Ag bond at 2.86 Angstrom. The Ag-O bond is absent in 3% Ag/CeO2. (C) 2002 Elsevier Science Ltd. All rights reserved.
Item Type: | Journal Article |
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Publication: | Materials Research Bulletin |
Publisher: | Elsevier Science |
Additional Information: | Copyright of this article belongs to Elsevier Science. |
Keywords: | A.Inorganic compounds;B.Chemical synthesis;C.XAFS |
Department/Centre: | Division of Chemical Sciences > Solid State & Structural Chemistry Unit |
Date Deposited: | 28 Jul 2011 05:55 |
Last Modified: | 28 Jul 2011 05:55 |
URI: | http://eprints.iisc.ac.in/id/eprint/39426 |
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