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题名: Performance improvement in direct methanol fuel cell cathode using high mesoporous area catalyst support
作者: Wang, GX;  Sun, GQ;  Zhou, ZH;  Liu, JG;  Wang, Q;  Wang, SL;  Guo, JS;  Yang, SH;  Xin, Q;  Yi, BL
通讯作者: 孙公权
刊名: ELECTROCHEMICAL AND SOLID STATE LETTERS
发表日期: 2005
DOI: 10.1149/1.1828343
卷: 8, 期:1, 页:A12-A16
收录类别: SCI
文章类型: Article
部门归属: 3
项目归属: 305
产权排名: 1;1
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Electrochemistry ;  Materials Science, Multidisciplinary
研究领域[WOS]: Electrochemistry ;  Materials Science
英文摘要: Black Pearls 2000 (designated as BP- 2000) and Vulcan XC-72 (designated as XC-72) carbon blacks were chosen as supports to prepare 40 wt % (the targeted value) Pt/C catalysts by a modified polyol process. The carbon blacks were characterized by N-2 adsorption and Fourier tranform infrared spectroscopy. The prepared catalysts were characterized by inductively coupled plasma atomic emission spectroscopy, transmission electron microscopy, scanning electron microscopy (SEM), in situ cyclic voltammetry, and current-voltage curves. On BP- 2000, Pt nanoparticles were larger in size and more unevenly distributed than on XC-72. It was observed by SEM that the corresponding catalyst layer on BP- 2000 was thicker than that of XC-72 based catalyst at almost the identical catalyst loading. And the BP- 2000 supported catalyst gave a better single cell performance at high current densities. These results suggest that the performance improvement is due to the enhanced oxygen diffusion and water removal capability when BP- 2000 is used as cathode catalyst support. (C) 2004 The Electrochemical Society.
关键词[WOS]: ACTIVATED CARBONS ;  PLATINUM ;  PT/C ;  ELECTRODES ;  ADSORPTION ;  OXIDATION ;  EXCHANGE ;  OXYGEN ;  WATER
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000228356800004
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/81659
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.Chinese Acad Sci, Dalian Inst Chem Phys, Direct Alcohol Fuel Cell Lab, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China

Recommended Citation:
Wang, GX,Sun, GQ,Zhou, ZH,et al. Performance improvement in direct methanol fuel cell cathode using high mesoporous area catalyst support[J]. ELECTROCHEMICAL AND SOLID STATE LETTERS,2005,8(1):A12-A16.
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