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In relation to this article, we declare that there is no conflict of interest.
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Received August 19, 2009
Accepted November 8, 2009
articles This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
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In situ IR studies on the mechanism of methanol synthesis from CO/H2 and CO2/H2 over Cu-ZnO-Al2O3 catalyst

State Key Laboratory of Chemical Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, P. R. China
liwei@ecust.edu.cn
Korean Journal of Chemical Engineering, July 2010, 27(4), 1093-1098(6), 10.1007/s11814-010-0176-9
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Abstract

Methanol synthesis from CO/H2 and CO2/H2 was carried out at atmospheric pressure over Cu/ZnO/Al2O3 catalyst. The formation and variation of surface species were recorded by in situ FT-IR spectroscopy. The result revealed that both CO and CO2 can serve as the primary carbon source for methanol synthesis. For CO/H2 feed gas, only HCOOZn was detected; however, for CO2/H2, both HCOO-Zn and HCOO-Cu were observed, and without CH3O-Cu. HCOOZn was the key intermediate. A scheme of methanol synthesis and reverse water-gas shift (RGWS) reaction was proposed.

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