Pd/MWCNTs(多壁碳纳米管)催化剂的制备及其Heck反应催化活性  

Palladium on Multi-walled Carbon Nanotubes(Pd/MWCNTs): Preparation and Application in Heck Reaction

作　　者：李雪亭 臧鹏远 叶秋明[1] 耿皎[1] 王喜章[1] 王秧年 胡征[1] 

机构地区：[1]介观化学教育部重点实验室,江苏省纳米技术重点实验室,南京大学化学化工学院,南京210093

出　　处：《无机化学学报》2011年第8期1550-1554,共5页Chinese Journal of Inorganic Chemistry

基　　金：国家自然科学基金(No.20833002);“973”项目(No.2007CB936302)资助

摘　　要：以浓硝酸处理后的多壁碳纳米管(MWCNTs)为载体,通过微波辅助法简单而快速地制备了高度分散、粒径均一的Pd/MWCNTs催化剂。利用XRD、HRTEM、XPS等手段对催化剂进行了表征。考察了Pd/MWCNTs催化剂对Heck反应的催化活性,并优化了反应温度、碱的种类和用量等反应条件。结果表明,Pd/MWCNTs在Heck反应中具有良好的催化活性。Palladium nanocatalysts were highly dispersed on surface-oxidized multi-walled carbon nanotubes（MWCNTs） by the microwave-assisted reduction of PdCl 2 solution.These catalysts were characterized by X-ray diffraction,high resolution transmission electron microscopy,X-ray photoelectron spectroscopy.The catalytic properties of the Pd/MWCNTs catalysts for Heck reaction were examined and the conditions such as reaction temperature,kind of base,and dosage of base were optimized.The results indicate that Pd/MWCNTs catalysts present good catalytic activity for Heck reaction.

关 键 词：多相催化 HECK反应 多壁碳纳米管 PD纳米粒子 负载催化剂 

分 类 号：O614.823[理学—无机化学] O643.3[理学—化学]