柱撑蒙脱土负载的钴系催化剂的制备  

Preparation of Pillared Montmorillonite Supported Cabalt Catalysts

作　　者：曾尚红[1] 董慧[1] 苏海全[1] 张玉龙 胡瑞生[1] 

机构地区：[1]内蒙古大学化学化工学院,内蒙古自治区煤炭化学重点实验室,呼和浩特010021 [2]匹茨堡大学化学和石油工程系,美国宾夕法尼亚匹茨堡15261

出　　处：《内蒙古大学学报（自然科学版）》2009年第3期274-279,共6页Journal of Inner Mongolia University：Natural Science Edition

基　　金：教育部新世纪优秀人才支持计划项目(NCET-04-0261);内蒙古自然科学基金重大项目(200408020201)

摘　　要：以钠化改型后的内蒙古兴和县蒙脱土为原料,使用离子交换法和浸渍法制备柱撑蒙脱土负载的钴催化剂.应用XRD和TPR方法对制备的催化剂进行表征,结果表明浸渍法比离子交换法更有利于活性组分钴的负载,且浸渍次数和各组分的浸渍顺序影响柱撑蒙脱土负载的钴催化剂中钴的分散度和还原行为.A series of A1-Pillared montmorillonite supported cobalt catalysts were prepared by ion-exchange and step-impregnation methods using Na-modified montmorillonite from Inner Mongolia Xinghe Bentonite. They were characterized by XRD and TPR techniques. The results showed that the active component was easier to load on the supports using impregnation method than ion-exchange method. Moreover ,the impregnation times and impregnation order influenced the dispersion degree and reductive behavior of cobalt on the Al-Pillared montmorillonite supported cobalt catalysts.

关 键 词：柱撑蒙脱土 钴 铈 催化剂 

分 类 号：O643[理学—物理化学]