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The effect of different valency cations on DMFC performance
Jie, Xiao1,2; Shao, Zhi-Gang1; Yi, Baolian1; Shao ZG(邵志刚)
KeywordDirect Methanol Fuel Cell (Dmfc) Cationic Impurity Single Electrode Potential Ion Transport
Source PublicationELECTROCHEMISTRY COMMUNICATIONS
2010-05-01
DOI10.1016/j.elecom.2010.03.010
Volume12Issue:5Pages:700-702
Indexed BySCI
SubtypeArticle
Department3
Funding Project301
Contribution Rank1;1
WOS HeadingsScience & Technology ; Physical Sciences
WOS SubjectElectrochemistry
WOS Research AreaElectrochemistry
WOS KeywordEXCHANGE MEMBRANE ; TEMPERATURE ; IMPURITY ; ION
AbstractAn in situ study of the effects of Na(+), Mg(2+) and Cr(3+) on direct methanol fuel cell (DMFC) performance is reported. The result showed that dramatic decrease of the cell voltage was mainly ascribed to the increase of the cathode overpotential. Meanwhile, the different contamination effects by introducing Na(+), Mg(2+) and Cr(3+) to the anode and the cathode were compared. When the same molar concentration of different cations was added to the anode feed, the contamination effect on the cell performance followed the order of Na(+) > Mg(2+) > Cr(3+). Owing to the fast transfer speed and the low affinity to the sulfonic acid groups in the ionomer phase, the low-valent cations may cause much more proton losses than the high-valent cations in the cathode catalyst layer (CCL) within the same time. So the low-valent cations led to the higher cathode overpotential than the high-valent cations. When the same molar concentration of cations was directly added to the CCL, the contamination effects on the cell voltage showed an opposite trend which is Na(+)
Language英语
URL查看原文
WOS IDWOS:000278218700024
Citation statistics
Cited Times:18[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/103635
Collection中国科学院大连化学物理研究所
Corresponding AuthorShao ZG(邵志刚)
Affiliation1.Chinese Acad Sci, Dalian Inst Chem Phys, Fuel Cell Syst & Engn Lab, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
Recommended Citation
GB/T 7714
Jie, Xiao,Shao, Zhi-Gang,Yi, Baolian,et al. The effect of different valency cations on DMFC performance[J]. ELECTROCHEMISTRY COMMUNICATIONS,2010,12(5):700-702.
APA Jie, Xiao,Shao, Zhi-Gang,Yi, Baolian,&邵志刚.(2010).The effect of different valency cations on DMFC performance.ELECTROCHEMISTRY COMMUNICATIONS,12(5),700-702.
MLA Jie, Xiao,et al."The effect of different valency cations on DMFC performance".ELECTROCHEMISTRY COMMUNICATIONS 12.5(2010):700-702.
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