溶胶凝胶法制备甲醇裂解铜系催化剂  

Preparation of copper based catalysts by sol-gel technique for methanol decomposition to hydroen

作　　者：徐士伟[1] 储伟[1] 戴晓雁[1] 

机构地区：[1]四川大学化工学院,四川成都610065

出　　处：《化学研究与应用》2005年第1期110-111,114,共3页Chemical Research and Application

基　　金：国家自然科学基金(29903011);973重点基础研究发展规划项目分题资助(19990224065)

摘　　要：The copper-based catalysts were prepared by sol-gel method and characterized by TPR and TG,and the catalysts were also examined in the reaction of methanol decomposition to hydrogen and carbon monoxide.It was showed that the size of Cu particles on the catalysts prepared by sol-gel method was smaller that than on the one prepared by impregnation method.In the reaction of methanol decomposition,the conversion increased with the rise of temperature.The catalysts with Cr promoter had better activity and higher yield of H2 at lower temperature,but at higher temperature,the catalysts with La or Ce were better.The copper-based catalysts were prepared by sol-gel method and characterized by TPR and TG,and the catalysts were also examined in the reaction of methanol decomposition to hydrogen and carbon monoxide.It was showed that the size of Cu particles on the catalysts prepared by sol-gel method was smaller that than on the one prepared by impregnation method.In the reaction of methanol decomposition,the conversion increased with the rise of temperature.The catalysts with Cr promoter had better activity and higher yield of H_2 at lower temperature,but at higher temperature,the catalysts with La or Ce were better.

关 键 词：溶胶凝胶法 铜系催化剂 甲醇制氢 助剂TPR表征 

分 类 号：O643.36[理学—物理化学]