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题名: Mechanism of preparation process and characterization of highly dispersed Pt/C cathode electrocatalyst for direct methanol fuel cells
作者: Zhou, ZH;  Zhou, WJ;  Jiang, LH;  Wang, SL;  Wang, GX;  Sun, GQ;  Xin, Q
关键词: electrocatalyst ;  polyol process ;  direct methanol fuel cell ;  platinum ;  carbon
刊名: CHINESE JOURNAL OF CATALYSIS
发表日期: 2004
卷: 25, 期:1, 页:65-69
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Applied ;  Chemistry, Physical ;  Engineering, Chemical
研究领域[WOS]: Chemistry ;  Engineering
英文摘要: A modified polyol process was used to prepare 40% Pt/C electrocatalyst for direct methanol fuel cells (DMFC). TEM and XRD were carried out to characterize the as-synthesized samples. The results of both measurements consistently demonstrated that the highly dispersed Pt nanoparticles with narrow size distribution supported on carbon can be achieved by this process. The statistic result based on TEM measurement showed that the Pt particles have a mean size of 2.9 nm. The DMFC performance tests indicated that the in-house Pt/C electrocatalyst has better electrocatalytic activity and stability for oxygen reduction reaction in DMFC than its commercial counterpart. In addition, UV-Vis spectroscopy measurements verified that the redox reaction between PtCl62- and ethylene glycol takes place via a single-step reaction path.
关键词[WOS]: COLLOIDAL PLATINUM ;  CATALYSTS ;  OXYGEN
语种: 英语
WOS记录号: WOS:000188980500015
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/139328
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, Dalian 116023, Liaoning, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Liaoning, Peoples R China

Recommended Citation:
Zhou, ZH,Zhou, WJ,Jiang, LH,et al. Mechanism of preparation process and characterization of highly dispersed Pt/C cathode electrocatalyst for direct methanol fuel cells[J]. CHINESE JOURNAL OF CATALYSIS,2004,25(1):65-69.
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