Electrodeposition and electrocatalytic properties of platinum nanoparticles on multi-walled carbon nanotubes: effect of the deposition conditions

被引：20
|
作者：
Zhao, Yue
Fan, Louzhen [1 ]
Zhong, Haizheng
Li, Yongfang
机构：
[1] Beijing Normal Univ, Dept Chem, Beijing 100875, Peoples R China
[2] Chinese Acad Sci, Inst Chem, Beijing 100080, Peoples R China
来源：
MICROCHIMICA ACTA | 2007年 / 158卷 / 3-4期
关键词：
MWCNTs; platinum nanoparticles; electrocatalysis; cyclic voltammetry;
D O I：
10.1007/s00604-006-0701-z
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
Platinum (Pt) nanoparticles were electrochemically deposited on multi-walled carbon nanotubes (MWCNTs) through a three-step process, including an electrochemical treatment of MWCNT, electro-oxidation of PtCl42- to Pt(IV) complex, and an electro-conversion of Pt(0) on MWCNT. The effect of formation conditions for Pt(IV) complexes on the Pt nanoparticals transformed was investigated. The structure and elemental composition of the resulting Pt/MWCNT electrode were characterized by transmission electron micrograph (TEM) and energy dispersive X-ray spectroscopy (EDX). The electrocatalytic properties of the resulting Pt/MWCNT electrode for methanol oxidation have been investigated. The high electrocatalytic activity and good stability of Pt/MWCNT electrode may be attributed to the high dispersion of platinum nanoparticles and the particular properties of the MWCNT supports.
引用
收藏
页码：327 / 334
页数：8
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