Studies on Redox Properties of the Catalyst Cu-Fe-Ce-O/γ-Al2O3

Abstract

Abstract: TPR, XPSand FTIRwere used to study the redox properties of the catalyst Cu-Fe-Ce-O(Ⅰ) supported on alumina.The results show that copper in (Ⅰ) has much stronger reduction and reoxidization properties, the presence of which facilitates the reduction of iron.Cerium as a promoter can enhance the redox properties of Cu-Fe-O(Ⅱ) supported on alumina.The studies on the samples pretreated by COor/and NOindicate that the adsorption of NO on iron is stronger than that on copper and the adsorption of COon copper is stronger than that on iron.The presence of cerium can enhance the adsorption of COin the reaction of CO+NO and has influence on the adsorption of NOin nitrates on (Ⅱ).

Key words: Catalyst, Redox property, Copper oxide, Iron oxide, Cerium oxide

TrendMD:

LU Guan-zhong, WANG Ren . Studies on Redox Properties of the Catalyst Cu-Fe-Ce-O/γ-Al₂O₃[J]. Chem. J. Chinese Universities, 1992, 13(6): 819.

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Studies on Redox Properties of the Catalyst Cu-Fe-Ce-O/γ-Al₂O₃

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