稀土Th修饰的Co-B非晶态合金催化肉桂醛选择性加氢制肉桂醇  

Liquid-Phase Selective Hydrogenation of Cinnamaldehyde to Cinnamyl Alcohol over Th-doped Co-B Amorphous Alloy Catalyst

作　　者：孟琦[1] 李和兴[1,2] 

机构地区：[1]华东理工大学化学与分子工程学院,上海200237 [2]上海师范大学化学系,上海200234

出　　处：《分子催化》2009年第1期57-61,共5页Journal of Molecular Catalysis(China)

基　　金：国家科技部资助项目(2005CCA01100,2007AA03Z339)

摘　　要：采用化学还原法制备了Th修饰的Co-B非晶态合金(Co-Th-B)并应用于液相肉桂醛选择性加氢制肉桂醇,Co-Th-B的活性和选择性显著高于非修饰Co-B,其中最佳Th修饰量为10%,此时肉桂醇得率可达81.4%,且能够多次重复使用.结合系统表征,初步讨论了催化剂的构效关系以及Th对催化性能的促进作用.Th-doped Co-B amorphous alloy catalyst （Co-Th-B） was prepared by chemical reduction method. During the liquid phase cinnamaldehyde （CMA） hydrogenation to cinnamyl alcohol （CMO）, the Co-Th-B catalyst exhibited much higher activity and selectivity to CMO than the undoped Co-B. The optimum Th-content was determined as 10% in Th/（ Co ＋ Th） weight ratio, corresponding to the CMO yield of 81.4%. Moreover, this catalyst also displayed strong durability and could be used repetitively for many times. Based on various characterizations, both the correlation of the catalytic performance to the structure of catalyst and the promoting effects of Th-dopant on the catalytic properties were discussed briefly.

关 键 词：Co—B非晶态合金 Th-修饰 肉桂醛加氢 肉桂醇 

分 类 号：O643.32[理学—物理化学]