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考察了 Ag-Mn,Ag-Co和 Ag-Ce复合氧化物催化剂上 CO氧化和 CO-NO反应性能及催化剂的还原和再氧化特性 .结果表明 ,对于 CO氧化双组分 Ag-Mn( 4∶ 1 ) /Al2 O3,Ag-Co( 4∶ 1 ) /Al2 O3和 Ag-Ce/Al2 O3催化剂的氧化活性均高于单组分 Ag/Al2 O3.双组分催化剂对 CO-NO反应的 NO还原促进不明显 ,但对 CO氧化有明显的促进 ,结合催化剂的还原和再氧化特性 ,讨论了双组分催化剂的共助催化作用 .
The CO oxidation and CO-NO reactivity on the Ag-Mn, Ag-Co and Ag-Ce composite oxide catalysts and the reduction and reoxidation characteristics of the catalysts were investigated. The results show that for the CO oxidation of the two component Ag-Mn 1) / Al 2 O 3, Ag-Co (4 1) / Al 2 O 3 and Ag-Ce / Al 2 O 3 were higher than that of the single component Ag / Al 2 O 3. The promotion of reduction was not obvious, but the CO oxidation was obviously promoted. Combined with the reduction and reoxidation characteristics of the catalyst, the co-catalytic action of the two-component catalyst was discussed.