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A methanol concentration sensor using twin membrane electrode assemblies operated in pulsed mode for DMFC
Sun, Wei; Sun, Gongquan; Yang, Weiqian; Yang, Shaohua; Xin, Qin; Sun GQ(孙公权); Sun GQ(孙公权)
KeywordDirect Methanol Fuel Cell Sensor Methanol Concentration Membrane Electrode Assembly (Mea) Pulsed Amperometric Detection
Source PublicationJOURNAL OF POWER SOURCES
2006-11-22
DOI10.1016/j.jpowsour.2006.07.033
Volume162Issue:2Pages:1115-1121
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 KeywordPOTENTIAL WAVE-FORM ; FUEL-CELL ; AMPEROMETRIC DETECTION ; ELECTROOSMOTIC DRAG ; NAFION MEMBRANES ; ELECTROOXIDATION ; NANOPARTICLES ; IMPEDANCE ; OXIDATION ; DESIGN
AbstractA methanol concentration sensor based on twin Nation membrane electrode assemblies (MEAs) was constructed and characterized by electrochemical methods. Pulsed amperometric detection (PAD) method, using a low frequency (67 mHz) potential waveform of E(red) (cathodic activation potential)= -0.2 V, E(pre-oxd) (anodic pre-oxidation potential) = +0.60 V and E(det) (detection potential) = +0.80 V versus DHE with the same pulse width of 5 s was applied to the sensor to enhance its performance. The response in pulsed mode had better linearity over a wider concentration range than that in potentiostatic mode. Furthermore, using this PAD method, the stability of the sensor was enhanced significantly with a slightly linear degradation rate of 2.9 mA h(-1) during long-time test. The performances of the sensor in terms of linearity, low anodic saturation and high stability show its potential application for direct methanol fuel cells. (c) 2006 Elsevier B.V. All rights reserved.
Language英语
URL查看原文
WOS IDWOS:000242821500056
Citation statistics
Cited Times:15[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/98299
Collection中国科学院大连化学物理研究所
Corresponding AuthorSun GQ(孙公权); Sun GQ(孙公权)
Affiliation1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100864, Peoples R China
Recommended Citation
GB/T 7714
Sun, Wei,Sun, Gongquan,Yang, Weiqian,et al. A methanol concentration sensor using twin membrane electrode assemblies operated in pulsed mode for DMFC[J]. JOURNAL OF POWER SOURCES,2006,162(2):1115-1121.
APA Sun, Wei.,Sun, Gongquan.,Yang, Weiqian.,Yang, Shaohua.,Xin, Qin.,...&孙公权.(2006).A methanol concentration sensor using twin membrane electrode assemblies operated in pulsed mode for DMFC.JOURNAL OF POWER SOURCES,162(2),1115-1121.
MLA Sun, Wei,et al."A methanol concentration sensor using twin membrane electrode assemblies operated in pulsed mode for DMFC".JOURNAL OF POWER SOURCES 162.2(2006):1115-1121.
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