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用原位红外技术研究了Ｐｄ／Ａｌ２Ｏ３催化ＣＯ氧化反应，对ＣＯ吸附态的特征以及ＣＯ氧化反应中ＣＯ和Ｏ２的配比进行了试验，获得Ｐｄ／Ａｌ２Ｏ３吸附多重谱带和它在２８５～３７３Ｋ温区范围内的变化情况。由此证明，Ｐｄ与Ａｌ２Ｏ３发生了相互作用。根据桥型谱带在ＣＯ和Ｏ２共吸附于不同温度时的变化，确定了转化反应较快的ＣＯ和Ｏ２配比为２：１。
In-situ infrared technique was used to study the catalytic CO oxidation of Pd / Al2O3. The characteristics of CO adsorption and the CO and O2 molar ratios in CO oxidation were studied. The Pd / Al2O3 adsorption multiple bands were obtained and the results were in the range of 285 ~ 373K Changes in the temperature range. It proves that Pd interacts with Al2O3. According to the changes of the bridge type bands when CO and O2 were co-adsorbed at different temperatures, the conversion ratio of CO to O2 was determined to be 2: 1.