Enhanced electrocatalytic performance for methanol oxidation of Pt nanoparticles on Mn3O4-modified multi-walled carbon nanotubes

被引：64
|
作者：
Yang, Xiulin [1 ,2 ]
Wang, Xueyun [1 ,2 ]
Zhang, Guoqiang [1 ,2 ]
Zheng, Junpeng [1 ,2 ]
Wang, Taishan [1 ,2 ]
Liu, Xianzong [1 ]
Shu, Chunying [1 ]
Jiang, Li [1 ]
Wang, Chunru [1 ]
机构：
[1] Chinese Acad Sci, Inst Chem, Key Lab Mol Nanostruct & Nanotechnol, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China
[2] Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
来源：
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2012年 / 37卷 / 15期
基金：
中国国家自然科学基金;
关键词：
Pt nanoparticles; Mn3O4; Multi-walled carbon nanotubes; Electrocatalysis; Fuel cells; MN3O4; ELECTROOXIDATION; COMPOSITE; MEMBRANE; CATALYST; RU; FUNCTIONALIZATION; CROSSOVER; PT/WO3; FILMS;
D O I：
10.1016/j.ijhydene.2012.04.153
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：
We report the preparation of well-dispersed Pt nanoparticles depositing on Mn3O4-modified multi-walled carbon nanotubes (Mn3O4-MWCNTs) that can be taken as high performance catalyst in methanol electro-oxidation. Various spectrometry techniques such as FT-IR, Raman, XRD, TEM and XPS measurements were performed, revealing that the Pt nanoparticles were highly dispersed on the surface of Mn3O4-modified MWCNTs with a narrow size distribution between 1.7 nm and 3.9 nm. Compared the Pt/MWCNT catalyst without Mn3O4 modification, the Pt/Mn3O4-MWCNT composite catalyst not only shows relative large electrochemical active surface area (EAS), high catalyzing activity toward methanol electro-oxidation, but also exhibits very high stability with apparent anti-poisoning tolerance to the incomplete oxidized species during methanol oxidation. Copyright (c) 2012, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：11167 / 11175
页数：9
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