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题名: Factors influencing the performance of catalysts in direct methanol fuel cells
作者: Chen Weimin;  Sun Gongquan;  Mao Qing;  Yang Shaohua;  Sun Pichang;  Xin Qin
关键词: direct methanol fuel cell ;  electrocatalyst ;  performance degradation ;  temperature ;  potential
刊名: CHINESE JOURNAL OF CATALYSIS
发表日期: 2007-08-01
卷: 28, 期:8, 页:703-708
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: Several factors including temperature, potential, and intermediates that influence the performance of electrocatalysts in direct methanol fuel cells were examined. The results show that the sintering process of Pt catalyst particles was accelerated at high temperatures, and for PtRu catalysts, this process was largely inhibited by ruthenium oxides/hydroxides. The alloying degree of PtRu catalysts was elevated to some extent after the discharge test at a high temperature. The degradation of electrocatalysts was accelerated by high potential. The methanol oxidation reaction was hindered to some extent by intermediates such as formic acid and formaldehyde, especially the latter.
关键词[WOS]: PTRU NANOPARTICLES ;  OXIDATION ;  ELECTROCATALYSTS ;  PLATINUM ;  CARBON ;  DEMS ;  ELECTROOXIDATION ;  DURABILITY ;  ELECTRODE ;  PATHWAYS
语种: 英语
WOS记录号: WOS:000249472100008
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/140499
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.Shenyang Ligong Univ, Sch Environm & Chem Engn, Shenyang 110168, Liaoning, Peoples R China
3.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China

Recommended Citation:
Chen Weimin,Sun Gongquan,Mao Qing,et al. Factors influencing the performance of catalysts in direct methanol fuel cells[J]. CHINESE JOURNAL OF CATALYSIS,2007,28(8):703-708.
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