Web Release Date: December 19,
Artificial Construction of the Magnetically Separable Nanocatalyst by Anchoring Pt Nanoparticles on Functionalized Carbon-Encapsulated Nickel Nanoparticles
Key Laboratory of Mesoscopic Chemistry of MOE and Jiangsu Provincial Lab for NanoTechnology, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
National Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093, China
College of Materials Science and Engineering, Nanjing University of Technology, Nanjing 210009, China
Shenzhen Junye Nano Material Co., Ltd., Shenzhen, 518118, China
Received: June 9, 2007
In Final Form: October 20, 2007
Abstract:
A magnetically separable nanocatalyst consisting of 2-5-nm Pt particles dispersed on carbon-encapsulated nickel nanoparticles has been artificially constructed. The magnetically separable function of the nanocatalyst is well demonstrated by recycled hydrogenation of nitrobenzene to aniline. The construction process has been clearly illuminated, which is composed of the nondestructive functionalization of magnetic Ni(C) nanocapsules with carboxylic acid end groups and then the immobilization of Pt nanoparticles. This strategy should be applicable to the construction of some other magnetically separable nanocatalysts.
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