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Issue 2, 2012
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Structure of the methanol synthesis catalyst determined by in situHERFD XAS and EXAFS

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Abstract

A Cu/ZnO/Al2O3 commercial catalyst for methanol synthesis from syngas was investigated under operational conditions. HERFD XAS and EXAFS data were recorded under different reaction gas mixtures, temperatures, and pressures. Activation of the catalyst precursor occurred via a Cu+ intermediate. The active catalyst predominantly consists of metallic Cu and ZnO. Methanol production only starts when all accessible Cu is reduced. The structure of the active catalyst did not change with temperature or pressure even though the methanol yield changed strongly. Formation of a carbon-containing layer on top of the catalyst surface was detected by TPD, which was correlated with a several-hour induction period in the methanol production after the catalyst reduction.

Graphical abstract: Structure of the methanol synthesis catalyst determined by in situHERFD XAS and EXAFS

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Publication details

The article was received on 15 Jul 2011, accepted on 24 Oct 2011 and first published on 08 Nov 2011


Article type: Paper
DOI: 10.1039/C1CY00277E
Citation: Catal. Sci. Technol., 2012,2, 373-378
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    Structure of the methanol synthesis catalyst determined by in situHERFD XAS and EXAFS

    E. Kleymenov, J. Sa, J. Abu-Dahrieh, D. Rooney, J. A. van Bokhoven, E. Troussard, J. Szlachetko, O. V. Safonova and M. Nachtegaal, Catal. Sci. Technol., 2012, 2, 373
    DOI: 10.1039/C1CY00277E

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