Methanol electro-oxidation on Ni@Pd core-shell nanoparticles supported on multi-walled carbon nanotubes in alkaline media

被引：327
|
作者：
Zhao, Yanchun [1 ]
Yang, Xiulin [1 ]
Tian, Jianniao [1 ]
Wang, Fengyang [1 ]
Zhan, Lu [1 ]
机构：
[1] Guangxi Normal Univ, Key Lab Chem & Mol Engn Med Resources, Minist Educ China, Coll Chem & Chem Engn, Guilin 541004, Peoples R China
来源：
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2010年 / 35卷 / 08期
关键词：
Ni@Pd core-shell nanoparticles; Multi-walled carbon nanotubes; Methanol oxidation; Electrocatalysis; TERNARY COMPOSITE FILMS; PT-RU NANOPARTICLES; ELECTROCATALYTIC ACTIVITY; ETHANOL ELECTROOXIDATION; CATALYTIC PERFORMANCE; OXIDATION; REDUCTION; TEMPERATURE; DECORATION; BINARY;
D O I：
10.1016/j.ijhydene.2010.01.112
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
A novel method to prepare well-dispersed Ni@Pd core-shell nanoparticles on multi-walled carbon nanotubes (Ni@Pd/MWCNTs) is reported. The morphology and crystallinity of the catalyst are characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS) and X-ray diffraction (XRD) analyses, respectively. Binary composite Ni@Pd/MWCNTs have been obtained and investigated for electrocatalysis of methanol oxidation in 0.5 M NaOH. It is observed that Ni@Pd/MWCNTs increases the apparent electrocatalytic activity and stability of the electrode considerably than that of PdNi/MWCNTs and Pd/MWCNTs catalysts. It is implied that Ni@Pd core-shell nanoparticles supported on MWCNTs is very promising for portable applications in DMFC in alkaline solution. (C) 2010 Professor T. Nejat Veziroglu. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：3249 / 3257
页数：9
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