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研究了不同活性炭负载的Ｐｄ催化剂在ＮＯ＋ＣＯ反应中和单独处理ＮＯ时的催化行为．结果表明，Ｐｄ的引入可大大提高催化活性，且活性与Ｐｄ含量呈顺变关系．不同的载体对催化剂活性有很大影响．在ＮＯ＋ＣＯ反应中，由煤质炭为载体制得的催化剂活性很高，在低于５５０Ｋ时ＮＯ即可达到１００％转化，而在单独ＮＯ时，由山桃核炭制得的催化剂有较高的活性，在低于６５０Ｋ时ＮＯ可达到１００％转化．催化剂活性的差异与活性炭表面性质有关．当反应体系中有还原物质ＣＯ存在时，活性炭作为载体，Ｐｄ在其上的分散对活性有重要影响；当体系中没有还原物质时，活性炭作为还原剂参与反应，这时活性炭本身的性质变得十分重要．
The catalytic activity of different activated carbon supported Pd catalysts for NO + CO and NO alone was investigated. The results show that the introduction of Pd can greatly improve the catalytic activity, and the activity and Pd content showed a covary relationship. Different supports have a great influence on the catalyst activity. In the NO + CO reaction, the catalyst prepared from coal-based carbon is very active. When NO is less than 550K, the conversion of NO reaches 100%. In the case of NO alone, the catalyst prepared from the peach kernel carbon has higher Activity, NO can reach 100% conversion below 650K. The difference in catalyst activity is related to the surface properties of the activated carbon. When there is a reducing substance CO in the reaction system, the activated carbon as a carrier, the dispersion of Pd on it has an important influence on the activity; when there is no reducing substance in the system, the activated carbon is involved in the reaction as a reducing agent, and the properties of the activated carbon itself become Very important.