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本文用过渡应答法研究了CO在含钾Fe-Co/Al_2O_3催化剂上的氢化反应,为含钾催化剂的吸附行为和反应机理提供了有益的信息。数据表明,H_2和CO在该催化剂上存在着部分不可逆吸附。二者吸附在同一个活性位上,CO的吸附略强于H_2的吸附。由产物应答实验可知催化剂上只存在一种活性中间体—表面碳。其碳链的增长不一定经过气相CO的插入。
In this paper, the transition reaction method was used to study the hydrogenation of CO over potassium-containing Fe-Co / Al 2 O 3 catalysts, which provided useful information for the adsorption behavior and reaction mechanism of potassium-containing catalysts. The data show that there is some irreversible adsorption of H 2 and CO on this catalyst. The two adsorbed on the same active site, the adsorption of CO slightly stronger than that of H 2. By the product response experiment shows that there is only one active catalyst on the catalyst - surface carbon. The carbon chain growth does not necessarily go through the insertion of gaseous CO.