Catalytic processes during preferential oxidation of CO in H2-rich streams over catalysts based on copper–ceria

摘要: Nanostructured catalysts based on combinations between oxidised copper and cerium entities prepared by two different methods (impregnation of ceria coprecipitation the components within reverse microemulsions) have been examined with respect to their catalytic performance for preferential oxidation CO in a H2-rich stream (CO-PROX). Correlations redox properties are established basis parallel analyses temperature programmed reduction results employing both H2 as reactants well XPS. Although general trends can be directly correlated observed upon separate interactions each reductants (CO H2), existence interferences must considered complete details such activity/redox correlation. Differences nature active copper–cerium contacts present case determine these systems CO-PROX process.