An EXAFS investigation of Cu-ZnO methanol synthesis catalysts

Sankar, G. ; Vasudevan, S. ; Rao, C. N. R. (1986) An EXAFS investigation of Cu-ZnO methanol synthesis catalysts Journal of Chemical Physics, 85 (4). pp. 2291-2299. ISSN 0021-9606

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Cu K-edge EXAFS of calcined and reduced Cu-ZnO methanol synthesis catalysts (with a maximum copper content of 33 at wt. %) have been studied. The calcined catalysts contain two species, Cu2+ in a CuO-like phase and Cu2+ occupying substitutional sites in the ZnO lattice. The reduced catalysts contain three species, Cu0, Cu1+ in a Cu2O-like phase, and Cu1+ in an interstitial site in the ZnO lattice. In carrying out the EXAFS analysis of these multiphasic catalysts, we have employed an additive relation for the EXAFS function and made use of residual spectra for identifying unknown species.

Item Type:Article
Source:Copyright of this article belongs to American Institute of Physics.
Keywords:Catalysts; EXAFS; Methanol; Synthesis; Zinc Oxides; Copper Additions
ID Code:58470
Deposited On:31 Aug 2011 06:00
Last Modified:16 Jul 2012 08:57

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