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Degradation of electrocatalysts performance in direct methanol fuel cells
Chen Wei-Min; Sun Gong-Quan; Zhao Xin-Sheng; Sun Pi-Chang; Yang Shao-Hua; Xin Qin
关键词Direct Methanol Fuel Cell(Dmfc) Electrocatalyst Discharge Test Performance Degradation
刊名CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE
2007-05-01
28期:5页:928-931
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Chemistry, Multidisciplinary
研究领域[WOS]Chemistry
关键词[WOS]ELECTROOXIDATION ; OXIDATION ; PLATINUM ; IMPEDANCE ; CATALYSTS ; ANODE ; BLACK ; CO
英文摘要A discharge test was conducted to evaluate the degradation of the performance of electrocatalysts in direct methanol fuel cells (DMFCS). The results of transmission electron microscopy (TEM) and X-ray diffraction (XRD) analyses show that after the test, the mean particle size of the anode electrocatalyst did not change, while that of the cathode electrocatalyst increased remarkably. The main reason for the sintering of electrocatalysts is the existence of liquids. Amorphous Ru species in the anode catalyst inhibit the growing of Pt crystallites. The electrochemical surface area (ECSA) decreased. after the discharge test, with a degree higher than the specific surface area (SSA), both for the anode and the cathode. Part of ruthenium was lost from the anode electrocatalyst during the discharge test.
语种英语
WOS记录号WOS:000246787400031
引用统计
被引频次:13[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/140703
专题中国科学院大连化学物理研究所
作者单位1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
2.Shenyang Inst Technol, Sch Environm & Chem Engn, Shenyang 110168, Peoples R China
3.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
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GB/T 7714
Chen Wei-Min,Sun Gong-Quan,Zhao Xin-Sheng,et al. Degradation of electrocatalysts performance in direct methanol fuel cells[J]. CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE,2007,28(5):928-931.
APA Chen Wei-Min,Sun Gong-Quan,Zhao Xin-Sheng,Sun Pi-Chang,Yang Shao-Hua,&Xin Qin.(2007).Degradation of electrocatalysts performance in direct methanol fuel cells.CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE,28(5),928-931.
MLA Chen Wei-Min,et al."Degradation of electrocatalysts performance in direct methanol fuel cells".CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE 28.5(2007):928-931.
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