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Catalysts for low-temperature methanol synthesis. I. A study of the reduction process

Authors
Journal
Journal of Solid State Chemistry
0022-4596
Publisher
Elsevier
Publication Date
Volume
42
Issue
2
Identifiers
DOI: 10.1016/0022-4596(82)90257-2

Abstract

Abstract A study of the reduction of CuO in a ternary oxide system (Cu:Zn:Al, atomic ratio 62:14:24) demonstrated that at lower temperatures it occurred in two stages, whereas at higher temperatures it was no longer possible to display the formation of Cu 2O. The rate of reduction of CuO was strongly reduced on decreasing the partial pressure of hydrogen, while the presence of CO 2 stabilized the Cu 2O, delaying the reduction to copper. On the basis of simpler systems it was possible to demonstrate the activating effect of Al 2O 3 and the delaying effect of ZnO on the reduction of CuO.

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