标题：Ionic liquid-assisted synthesis of carbon nanotube/platinum nanocomposites
作者：Zou, Hua; Luan, Yuxia; Wang, Xiaojun; Xie, Zhiyun; Liu, Jijuan; Sun, Junchao; Wang, Yana; Li, Zhonghao
作者机构：[Zou, Hua; Wang, Xiaojun; Xie, Zhiyun; Liu, Jijuan; Sun, Junchao; Wang, Yana; Li, Zhonghao] Shandong Univ, Sch Mat Sci & Engn, Key Lab Liquid Solid St 更多
通讯作者地址：[Li, ZH]Shandong Univ, Sch Mat Sci & Engn, Key Lab Liquid Solid Struct Evolut & Proc Mat, Jinan 250061, Shandong, Peoples R China.
来源：JOURNAL OF NANOPARTICLE RESEARCH
关键词：Ionic liquid; Carbon nanotube nanocomposites; 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 as-prepared 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.