Facile Fabrication of Platinum Nanoparticles Supported on Nitrogen-doped Carbon Nanotubes and Their Catalytic Activity  

作　　者：Ling-ling Wang Long Shen Hai-ying Jin Lu-ping Zhu Li-jun Wang 

机构地区：[1]School of Urban Development and Environment Engineering, Shanghai Second Polytechnic University, Shanghai 201209, China [2]Shanghai Shanshan Technology Co., Ltd., Shanghai 201209, China

出　　处：《Chinese Journal of Chemical Physics》2014年第3期327-331,共5页化学物理学报（英文）

基　　金：ACKNOWLEDGMENTS This work was supported by the National Natural Science Foundation of China （No.21101105 and No.51174274）, Innovation Program supported by Shanghai Municipal Education Commission （No.12ZZ195 and No.13YZ134）, Shanghai Educational Development Foundation and the Shanghai Municipal Education Commission （No.12CG66）, ＂Shu Guang＂ Project supported by Shanghai Municipal Education Commission （No.09SG54）, and Shanghai Municipal Natural Science Foundation （No.13ZR1454800）.

摘　　要：A facile impregnation method under mild condition is designed for synthesis of highly dispersed Pt nanoparticles with a narrow size of 4-7 nm on nitrogen-doped carbon nanotubes （CNx）. CNx do not need any pre-surface modification due to the inherent chemical activity. The structure and nature of Pt/CNx were characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy and energy dispersive spectroscopy spectrum. All the experimental results revealed that the large amount of doped nitrogen atoms in CNx was virtually effective for capturing the Pt（IV） ions. The improved surface nitrogen functionalities and hydrophilicity contributed to the good dispersion and immobi- lization of Pt nanoparticles on the CNx surface. The Pt/CNx served as active and reusable catalysts in the hydrogenation of allyl alcohol. This could be attributed to high dispersion of Pt nanoparticles and stronger interaction between Pt and the supports, which prevented the Pt nanoparticles from aggregating into less active Pt black and from leaching as well.

关 键 词：Carbon nanotube Nitrogen doping Allyl alcohol hydrogenation Pt nanoparticles Heterogeneous catalyst 

分 类 号：O643.36[理学—物理化学] TB383[理学—化学]