Networks of connected Pt nanoparticles supported on carbon nanotubes as superior catalysts for methanol electrooxidation

被引：35
|
作者：
Huang, Meihua [1 ,2 ]
Zhang, Jianshuo [1 ,2 ]
Wu, Chuxin [1 ,2 ]
Guan, Lunhui [1 ,2 ]
机构：
[1] Chinese Acad Sci, Fujian Inst Res Struct Matter, Key Lab Design & Assembly Funct Nanostructures, Fuzhou 350108, Peoples R China
[2] Chinese Acad Sci, Fujian Inst Res Struct Matter, Fujian Prov Key Lab Nanomaterials, Fuzhou 350108, Peoples R China
来源：
JOURNAL OF POWER SOURCES | 2017年 / 342卷
基金：
中国国家自然科学基金;
关键词：
Platinum; Surface defects; Networks of connected Pt nanoparticles; Methanol oxidation; ELECTROCATALYTIC PROPERTIES; FUEL-CELLS; DURABILITY; ARRAYS;
D O I：
10.1016/j.jpowsour.2016.12.054
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：
The high cost and short lifetime of the Pt-based anode catalyst for methanol oxidation reaction (MOR) hamper the widespread commercialization of direct methanol fuel cell (DMFC). Therefore, improving the activity of Pt-based catalysts is necessary for their practical application. For the first time, we prepared networks of connected Pt nanoparticles supported on multi-walled carbon nanotubes with loading ratio as high as 91 wt% (Pt/MWCNTs). Thanks for the unique connected structure, the Pt mass activity of Pt/MWCNTs for methanol oxidation reaction is 4.4 times as active as that of the commercial Pt/C (20 wt%). When carbon support is considered, the total mass activity of Pt/MWCNTs is 20 times as active as that of the commercial Pt/C. The durability and anti-poisoning ability are also improved greatly. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码：273 / 278
页数：6
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