一种无机-有机高分子杂化催化剂Pd(0)-CS/MCM-41的制备及其性能研究  

Preparation and Catalytic Performance of Hybrid Inorganic-Organic Polymer Catalyst Pd(0)-CS/MCM-41

作　　者：陈静[1] 唐俊杰[1] 胡晨晖[1] 王锦堂[1] 

机构地区：[1]南京工业大学理学院应用化学系,南京210009

出　　处：《无机化学学报》2009年第1期147-153,共7页Chinese Journal of Inorganic Chemistry

基　　金：中国石油化工股份有限公司资助项目(No.J102012)

摘　　要：将天然高分子聚合物壳聚糖负载到MCM-41介孔分子筛上,再在室温与氯化钯乙醇溶液作用,制得了一种无机-有机天然高分子杂化催化剂Pd(0)-CS/MCM-41,并利用XPS、FTIR、XRD、热重等手段对其进行了表征。以碘代苯与丙烯酸的Heck芳基化反应考察了所得催化剂的催化性能。结果表明,催化剂具有较高的催化活性和良好的重复使用性能,催化剂在氮气保护下能有效地催化碘代苯与丙烯酸的Heck反应,高产率地得到反式肉桂酸。经8次重复使用后,肉桂酸的产率仍达80%以上。A hybrid inorganic-organic polymer catalyst, Pd（0）-CS/MCM-41, was prepared by supporting natural polymer chitosan on mesoporous molecular sieve MCM-41 and then reacting with an ethanol solution of palladi dichloride at room temperature. The catalyst was characterized by XPS, FTIR, XRD and TGA. The catalytic perfor- mance for Heck arylation of acrylic acid with iodobenzene was investigated. The results show that the catalyst has a high catalytic activity for the synthesis of trans-cinnamic acid under N2 atmosphere with high yield. After 8 times repeated use, the yield of cinnamic acid above 80% is still obtained.

关 键 词：MCM-41分子筛 壳聚糖 钯配合物 HECK反应 

分 类 号：O614.823[理学—无机化学] O643[理学—化学]