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题名: Double-Walled Carbon Nanotubes as Catalyst Support in Direct Methanol Fuel Cells
作者: Tang, Shuihua1;  Sun, Gongquan2;  Sun, Shiguo2;  Qi, Jing2;  Xin, Qin2;  Haarberg, Geir Martin1
刊名: JOURNAL OF THE ELECTROCHEMICAL SOCIETY
发表日期: 2010
DOI: 10.1149/1.3463724
卷: 157, 期:9, 页:B1321-B1325
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Electrochemistry ;  Materials Science, Coatings & Films
研究领域[WOS]: Electrochemistry ;  Materials Science
英文摘要: Double-walled carbon nanotubes (DWCNTs) with a large specific surface area, good crystallization, and netlike structure were synthesized by chemical vapor deposition. The DWCNT-supported platinum catalyst was prepared by a modified polyol method and used as a cathode catalyst for the oxygen reduction reaction (ORR) in direct methanol fuel cells. The Pt/DWCNT catalyst was characterized by X-ray diffraction, transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), cyclic voltammetry, and a single cell test. The TEM images showed that platinum particles with an average size of 2 - 3 nm were uniformly distributed on the surface of the DWCNTs when the platinum loading is as high as 60 wt %. The Pt binding energy of XPS showed a stronger interaction between Pt particles and DWCNTs than between Pt particles and Vulcan XC72R, and the Pt/DWCNT catalyst exhibited better activity and stability toward ORR than a commercial Pt/XC72R catalyst under identical conditions. This can be attributed to the unique properties of the DWCNTs, which can facilitate electron transfer, water removal, and oxygen access to the catalyst active sites. (C) 2010 The Electrochemical Society. [DOI: 10.1149/1.3463724] All rights reserved.
关键词[WOS]: PERFORMANCE ;  PLATINUM ;  NANOPARTICLES ;  FABRICATION ;  ELECTRODES
语种: 英语
WOS记录号: WOS:000280348300016
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/141842
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Norwegian Univ Sci & Technol, Dept Mat Sci & Engn, N-7491 Trondheim, Norway
2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China

Recommended Citation:
Tang, Shuihua,Sun, Gongquan,Sun, Shiguo,et al. Double-Walled Carbon Nanotubes as Catalyst Support in Direct Methanol Fuel Cells[J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY,2010,157(9):B1321-B1325.
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