A novel catalyst support for DMFC: Onion-like fullerenes

被引：59

作者：

Xu, Bingshe ^{[1
]}

Yang, Xiaowei

Wang, Xiaomin

Guo, Junjie

Liu, Xuguang

机构：

[1] Taiyuan Univ Technol, Coll Mat Sci & Engn, Taiyuan 030024, Peoples R China

[2] Taiyuan Univ Technol, Key Lab Interface Sci & Engn Adv Mat, Minist Educ, Taiyuan 030024, Peoples R China

来源：

JOURNAL OF POWER SOURCES | 2006年 / 162卷 / 01期

基金：

中国国家自然科学基金;

关键词：

Pt/onion-like fullerenes (Pt/OLFs); characterization; electrocatalytic activity; OXYGEN REDUCTION; CARBON NANOTUBES; ARC-DISCHARGE; FUEL-CELLS; ELECTROLYTE; METHANOL; ELECTROOXIDATION; NANOPARTICLES; NETWORKS; FE;

D O I：

10.1016/j.jpowsour.2006.06.063

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：

Onion-like fullerenes (OLFs) were employed as the support for Pt in direct methanol fuel cells (DMFCs). A Pt/OLFs catalyst was synthesized by an impregnation-reduction method. Its structure and morphology were characterized by XRD, HRTEM and XPS. The Pt nanoparticles uniformly dispersed on OLFs had an average diameter of 3.05 nm, compared to 4.10 nm in Pt/Vulcan XC-72 prepared by the same method. XPS analysis revealed that Pt/OLF contained mostly Pt(0), with traces of Pt(II) and Pt(IV). Cyclic voltammetry showed that the real surface area of the Pt/OLFs was larger than Pt/XC-72 and the electrocatalytic activity of the Pt/OLFs catalyst, from the peak current value at around 0.78 V, outperformed the Pt/Vulcan XC-72 by about 20% in the electrooxidation of methanol. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：160 / 164

页数：5

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