Pd/C催化剂的制备与活性  

Preperation of Pd/C and Its Catalytic Activity

作　　者：林辉[1] 史鸿鑫[2] 吴美宁[3] 

机构地区：[1]浙江医科大学机能中心,杭州310006 [2]浙江工业大学化工学院,杭州310032 [3]温州大学轻工化工系,温州325027

出　　处：《浙江工业大学学报》1998年第2期94-97,共4页Journal of Zhejiang University of Technology

摘　　要：研究了Pd／C催化剂制备因素对加氢催化活性的影响，实验结果表明，活性中心之间存在着“集团效应”；Pd／C催化剂中Pd含量较高时，催化剂具有较高的比活性；载体颗粒小，则有利于提高活性组份的分散度，但由于“集团效应”，只有适当的载体粒度才有利于提高Pd／C催化剂的活性。载体的酸洗预处理也能促进催化剂治性提高，还原方式与条件亦有一定的影响。The effect of prepration factors of Pd/C on their activities of hydrogenation has been studied.There is a 'group effect' among the active centres. The higher content of Pd/C, the higher catalytic activity. Reduing the grain size of active carbon carrier will incease the dispersive degree of active ingredient, but because of the 'group effect', a proper graininess of carrier is favorable to increase the catalytic activity of Pd/C, and pre-impregnating the carrier with acid solution will increase the activity of the catalyst. The method and the condition of reduction of catalysts have also some influences on their catalytic activities.

关 键 词：催化剂 制备 加氢 活性 

分 类 号：O643[理学—物理化学]