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采用ＣＯＴＰＳＲ和ＣＯ氧化活性测试等方法考察了不同载体对Ｐｄ催化剂的ＣＯ表面氧化性能的影响．结果表明，载体对Ｐｄ催化剂的ＣＯ氧化性能、ＣＯ吸附能力影响很大．ＣＯ的吸附能力顺序为Ｐｄ／ＣｅＯ２（吸附量：０５９ｍＬ／１００ｍｇ）＞Ｐｄ／Ａｌ２Ｏ３（吸附量：００５２ｍＬ／１００ｍｇ）＞Ｐｄ／ＴｉＯ２（吸附量：０００１ｍＬ／１００ｍｇ）．催化剂的ＣＯ氧化活性与ＣＯ吸附能力有很好的对应关系，尤其是Ｐｄ／ＣｅＯ２催化剂对ＣＯ表现出很好的活性，在５０℃时其转化率可达９８％．
COTPSR and CO oxidation activity tests were used to investigate the effect of different supports on the CO oxidation performance of Pd catalysts. The results showed that the support had a great influence on the CO oxidation performance and CO adsorption capacity of the Pd catalyst. The adsorption capacity of CO was Pd / CeO2 (adsorption amount: 059mL / 100mg)> Pd / Al2O3 (adsorption amount: 0052mL / 100mg)> Pd / TiO2 (adsorption amount: 0001mL / 100mg). The CO oxidation activity of the catalyst has a good correspondence with the CO adsorption capacity. In particular, the Pd / CeO2 catalyst shows good activity on CO, and the conversion rate reaches 98% at 50 ° C.