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A Methanol Concentration Sensor Using Twin Membrane Electrode Assemblies for Direct Methanol Fuel Cells
Sun, Wei1,2; Sun, Gongquan1; Yang, Weiqian1,2; Yang, Shaohua1; Xin, Qin1; Sun GQ(孙公权)
关键词Fuel Cell Sensor Methanol Concentration Membrane Electrode Assembly (Mea)
刊名INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE
2006-08-01
1期:4页:160-170
收录类别SCI
文章类型Article
部门归属3
项目归属305
产权排名1;1
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Electrochemistry
研究领域[WOS]Electrochemistry
英文摘要A methanol concentration sensor based on twin Nafion membrane electrode assemblies (MEAs) was constructed with anodes face to face eliminating the interference of oxygen in environment. The signal of the sensor was obtained by electro-oxidation of the methanol crossing over Nafion membranes from cathodes. During operation, carbon dioxide as a product of methanol oxidation not only was expelled from the gaps between two MEAs, but also permeated across the membranes into the cathodes, which was confirmed by GC in the outflowing stream of the sensor. Electrochemical characterization shows that the sensor has good response performance with a concentration range up to 5M and the signal increases with temperature elevating. The slightly nonlinearity of the working curves was mainly caused by electro-osmotic effect confirmed by electro-osmotic drag coefficient. Though logarithm tendency degradation with 0.9% hr(-1) was observed from stability test, the performances in terms of high sensitivity to concentration with wide measuring range and signal recovery characteristics show that the sensor is promising for direct methanol fuel cells.
语种英语
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WOS记录号WOS:000208126500002
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被引频次:7[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/321008/98301
专题中国科学院大连化学物理研究所
通讯作者Sun GQ(孙公权)
作者单位1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Grad Sch, Dalian 116023, Peoples R China
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GB/T 7714
Sun, Wei,Sun, Gongquan,Yang, Weiqian,et al. A Methanol Concentration Sensor Using Twin Membrane Electrode Assemblies for Direct Methanol Fuel Cells[J]. INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE,2006,1(4):160-170.
APA Sun, Wei,Sun, Gongquan,Yang, Weiqian,Yang, Shaohua,Xin, Qin,&孙公权.(2006).A Methanol Concentration Sensor Using Twin Membrane Electrode Assemblies for Direct Methanol Fuel Cells.INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE,1(4),160-170.
MLA Sun, Wei,et al."A Methanol Concentration Sensor Using Twin Membrane Electrode Assemblies for Direct Methanol Fuel Cells".INTERNATIONAL JOURNAL OF ELECTROCHEMICAL SCIENCE 1.4(2006):160-170.
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