DICP OpenIR
In situ analysis on water transport in a direct methanol fuel cell durability test
Tian, Yang1,2; Sun, Gongquan1; Mao, Qing1,2; Wang, Suli1; Liu, He1,2; Xin, Qin1,3; Sun GQ(孙公权)
KeywordDirect Methanol Fuel Cell Durability Performance Recovery Water Analysis Cathode Gas Diffusion Layer
Source PublicationJOURNAL OF POWER SOURCES
2008-12-01
DOI10.1016/j.jpowsour.2008.08.095
Volume185Issue:2Pages:1015-1021
Indexed BySCI
SubtypeArticle
Department3
Funding Project305
Contribution Rank1;1
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
WOS SubjectElectrochemistry ; Energy & Fuels
WOS Research AreaElectrochemistry ; Energy & Fuels
WOS KeywordGAS-DIFFUSION LAYER ; PERFORMANCE DEGRADATION ; ELECTROOSMOTIC DRAG ; DMFC ; MEMBRANES ; CROSSOVER
AbstractIn present work, a 600 h durability test and in situ measurements of water transport were carried out on a single direct methanol fuel cell (DMFC) at atmospheric pressure and 80 degrees C. Effect of water transport on the single cell performance was investigated in detail, which indicated that the accumulated water in the hydrophobic micropores of the cathode gas diffusion layer (GDL) aggravated the cathode flooding, and consequently led to a temporary and reversible degradation of the cell performance. Further investigation revealed that cathode flooding could be alleviated by blowing the cathode with dry air for 150 h at open circuit condition and the partially recovered cell performance within the durability could be obtained in consequence. Water analysis combined with the scanning electron microscopy (SEM), contact angle measurement and energy dispersive X-ray (EDX) was used to explore the characteristics of cathode GDL before and after the durability test. Results showed that the variation of the microstructure and hydrophobic properties for both sides of the cathode GDL is probably one of the inherent reasons for the irreversible degradation of the cell performance besides the electro-catalysts deterioration. (c) 2008 Elsevier B.V. All rights reserved.
Language英语
URL查看原文
WOS IDWOS:000261748900065
Citation statistics
Cited Times:19[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/101401
Collection中国科学院大连化学物理研究所
Corresponding AuthorSun GQ(孙公权)
Affiliation1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
3.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
Recommended Citation
GB/T 7714
Tian, Yang,Sun, Gongquan,Mao, Qing,et al. In situ analysis on water transport in a direct methanol fuel cell durability test[J]. JOURNAL OF POWER SOURCES,2008,185(2):1015-1021.
APA Tian, Yang.,Sun, Gongquan.,Mao, Qing.,Wang, Suli.,Liu, He.,...&孙公权.(2008).In situ analysis on water transport in a direct methanol fuel cell durability test.JOURNAL OF POWER SOURCES,185(2),1015-1021.
MLA Tian, Yang,et al."In situ analysis on water transport in a direct methanol fuel cell durability test".JOURNAL OF POWER SOURCES 185.2(2008):1015-1021.
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
[Tian, Yang]'s Articles
[Sun, Gongquan]'s Articles
[Mao, Qing]'s Articles
Baidu academic
Similar articles in Baidu academic
[Tian, Yang]'s Articles
[Sun, Gongquan]'s Articles
[Mao, Qing]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Tian, Yang]'s Articles
[Sun, Gongquan]'s Articles
[Mao, Qing]'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.