草簇状石墨烯片限域Pd纳米粒子及其催化应用(英文)  

Pd confined in grass-like graphene layers on monolithic cordierite as the catalyst for hydrogenation of 4-carboxybenzaldehyde

作　　者：刘贡钢[1] 余林遇 朱玉超[1] 郭晓光[2] 周永华[1] 叶红齐[1] 

机构地区：[1]中南大学化学化工学院,湖南长沙410083 [2]中国科学院大连化学物理研究所催化基础国家重点实验室,辽宁大连116023

出　　处：《催化学报》2015年第2期148-152,共5页

基　　金：supported by the National Natural Science Foundation of China(21006129,21276284 and 21146008)~~

摘　　要：通过氨基离子液体改性石墨烯,并将其固载于堇青石表面,作为负载型Pd催化剂的载体.所制备的Pd催化剂经加氢老化后,表面石墨烯呈草簇状结构,将Pd纳米粒子限域于片层内,有效防止了Pd的流失和团聚.在重要的工业反应对羧基苯甲醛(4-CBA)加氢中,此结构催化剂与传统的钯碳催化剂相比。Pd nanoparticles were confined in grass-like graphene layers on monolithic cordierite by using NH2-ion liquid C_7H14CIN3 functionalized graphene sheets.These were used as the catalyst for the hydrogenation of 4-carboxybenzaldehyde.The catalyst exhibited high stability compared to Pd/activated carbon catalyst due to the inhibition of Pd leaching and aggregation.

关 键 词：钯催化剂 草簇状结构石墨烯 对羧基苯甲醛 加氢 

分 类 号：O643.36[理学—物理化学] O625.511[理学—化学]