标题：Ionic liquid-assisted synthesis of carbon nanotube/platinum nanocomposites
作者：Zou, H.;Luan, Y.;Wang, X.;Xie, Z.;Liu, J.;Sun, J.;Wang, Y.;Li, Z.
作者机构：Key Laboratory for Liquid-Solid Structural Evolution and Processing of Materials, School of Materials Science and Engineering, S
来源：Journal of nanoparticle research: An interdisciplinary forum for nanoscale science and technology
关键词：Carbon nanotube nanocomposites;Ionic liquid;Pt nanoparticles
摘要：The carbon nanotubes (CNTs) without modification for any functional group are used for the formation of CNTs/Pt nanocomposites in the presence of 1-butyl-3-methylimidazolium chloride ([BMIM]Cl) ionic liquid (IL) at a mild condition. The effects of platinum salt and [BMIM]Cl concentrations on the morphologies of final products are investigated. The asprepared products are characterized by transmission electron microscopy, powder X-ray diffraction, and cyclic voltammetry. It shows that the as-prepared CNTs/Pt nanocomposites have a good dispersion of Pt particles with tunable size by controlling the concentration of [BMIM]Cl. The Pt particle size of the synthesized CNTs/Pt nanocomposites could be as small as 7 ± 2 nm. The possible formation mechanism of the as-prepared nanocomposites is proposed based on the p-p interaction between the IL and the CNT. The electrochemical response of the synthesized CNTs/Pt nanocomposites to K _3 (FeCN) _6 is studied by cyclic voltammetry measurements, which demonstrates the response increases with the decrease of the Pt particle size. Moreover, the electroactivity for methanol oxidation using the synthesized CNTs/Pt nanocomposites with Pt particle size of 7 ± 2 nm shows that the asprepared CNTs/Pt nanocomposites have an improved catalytic performance.