Preparation of dispersible double-walled carbon nanotubes and application as catalyst support in fuel cells

被引：16

作者：

Wu, Zi Ping ^{[2
]}

Xia, Bao Yu ^{[2
]}

Wang, Xiao Xia ^{[1
]}

Wang, Jian Nong ^{[1
]}

机构：

[1] Tongji Univ, Sch Mat Sci & Engn, Shanghai Key Lab Metall Funct Mat, Key Lab Adv Civil Engn Mat,Minist Educ, Shanghai 200092, Peoples R China

[2] Shanghai Jiao Tong Univ, Sch Mat Sci & Engn, Shanghai Key Lab Laser Proc & Mat Modificat, Shanghai 200240, Peoples R China

来源：

JOURNAL OF POWER SOURCES | 2010年 / 195卷 / 08期

关键词：

Double-walled carbon nanotubes; Dispersion; Catalyst support; Fuel cells; SINGLE-WALL; NANOPARTICLES; DEPOSITION; BUNDLES; PEMFCS;

D O I：

10.1016/j.jpowsour.2009.10.013

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：

Dispersion of double-walled carbon nanotubes (DWCNTs) in ethylene glycol (EG) medium by a simple ultrasonication method is investigated. Excellent dispersion of DWCNTs in EG without addition of a surfactant is found. Surface structure and crystallinity of the DWCNTs undergo little change. The dispersion state of DWCNTs is found to be very important for deposition of Pt nanoparticles on them. The Pt particles prepared in the homogenous dispersion system has a small size and uniform distribution. As a result, the electrochemical activity of the Pt catalyst is much higher than that prepared in the nondispersible system. In terms of the good dispersion in EG medium achieved by a simple method, the DWCNT solutions could also be widely used in energy, biology, medicine and other fields. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：2143 / 2148

页数：6

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