Effects of pretreatments of Cu/ZnO-based catalysts on their activities for the water-gas shift reaction

The effects of the pretreatments of Cu/ZnO-based catalysts prepared by a coprecipitation method on their activities for the water–gas shift reaction at 523K were investigated. The activity of a Cu/ZnO/ZrO2/Al2O3 catalyst for the water–gas shift reaction was less affected by calcination at temperatur...

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Bibliographic Details
Published in:Catalysis letters 2003-07, Vol.89 (1-2), p.11-13
Main Authors: SAITO, Masahiro, TOMODA, Kazumi, TAKAHARA, Isao, MURATA, Kazuhisa, INABA, Megumu
Format: Article
Language:English
Subjects:
Aluminum oxide
Catalysis
Catalysts
Catalysts: preparations and properties
Chemistry
Exact sciences and technology
General and physical chemistry
Shift reaction
Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry
Zinc oxide
Zirconium dioxide
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Summary:The effects of the pretreatments of Cu/ZnO-based catalysts prepared by a coprecipitation method on their activities for the water–gas shift reaction at 523K were investigated. The activity of a Cu/ZnO/ZrO2/Al2O3 catalyst for the water–gas shift reaction was less affected by calcination at temperatures ranging from 673-973K and by H2 treatment at 573 or 723K than that of a Cu/ZnO/Al2O3 catalyst. The catalyst activity could be correlated mainly to the Cu surface area of the catalyst.
ISSN:1011-372X
1572-879X
DOI:10.1023/A:1024792014792