IMR OpenIR
Characteristics of the Activity Loss of Anode Catalyst in DMFC
Alternative TitleCharacteristics of the Activity Loss of Anode Catalyst in DMFC
Chen Weimin1; Jin Wenying3
2012
Source PublicationRARE METAL MATERIALS AND ENGINEERING
ISSN1002-185X
Volume41Issue:9Pages:1633-1637
AbstractThe activity loss anode PtRu/C catalyst in direct methanol fuel cell (DMFC) was examined by an electrochemical aging test. The results show that after the aging test, the activity of PtRu/C catalyst toward methanol oxidation decreased obviously. The transmission electron microscopy and X-ray diffraction analysis display that catalyst particles experienced Otswald ripening and directional migration under the electric field during the aging test. The electrochemical impedance spectra show that after the aging test, both the ohmic resistance and the polarization impedance increased remarkably, which is related to the loss of active components. The energy dispersive X-ray analysis shows that the mass ratio of Pt to Ru in the catalyst layer increased noticeably after the test. It is suggested that the loss of active components due to the potential fluctuation is an important factor responsible for the activity loss of the anode catalyst in DMFC.
KeywordMETHANOL FUEL-CELLS MEMBRANE-ELECTRODE ASSEMBLIES ADSORBED CO DEGRADATION PERFORMANCE DURABILITY PTRU ELECTROOXIDATION ELECTROCATALYST SPECTROSCOPY direct methanol fuel cell (DMFC) electrocatalyst PtRu/C aging
Indexed ByCSCD
Language英语
CSCD IDCSCD:4641707
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/148763
Collection中国科学院金属研究所
Affiliation1.沈阳理工大学
2.中国科学院金属研究所
3.Guilin University Technol, Guilin 541004, Peoples R China
Recommended Citation
GB/T 7714
Chen Weimin,Jin Wenying. Characteristics of the Activity Loss of Anode Catalyst in DMFC[J]. RARE METAL MATERIALS AND ENGINEERING,2012,41(9):1633-1637.
APA Chen Weimin,&Jin Wenying.(2012).Characteristics of the Activity Loss of Anode Catalyst in DMFC.RARE METAL MATERIALS AND ENGINEERING,41(9),1633-1637.
MLA Chen Weimin,et al."Characteristics of the Activity Loss of Anode Catalyst in DMFC".RARE METAL MATERIALS AND ENGINEERING 41.9(2012):1633-1637.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Chen Weimin]'s Articles
[Jin Wenying]'s Articles
Baidu academic
Similar articles in Baidu academic
[Chen Weimin]'s Articles
[Jin Wenying]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Chen Weimin]'s Articles
[Jin Wenying]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.