一种水清洁阳极的基于甲醇渗透的浓度传感器  

A concentration sensor based on methanol permeation with anode rinsed by water

作　　者：孙伟[1] 孙公权[1] 杨维谦[1] 杨少华[1] 辛勤[1] 

机构地区：[1]中国科学院大连化学物理研究所

出　　处：《传感器与微系统》2006年第8期18-21,共4页Transducer and Microsystem Technologies

基　　金：国家高技术发展计划资助项目(2003AA517040);国家自然科学基金资助项目(20173060);中国科学院知识创新工程重要方向和领域前沿项目(KGCX2-SW-310;K2003D2)

摘　　要：提出一种基于膜电极(MEA)结构的驱动模式甲醇浓度传感器。甲醇溶液从MEA阴极流过,通过MEA渗透到阳极,Nafion膜既是电解质膜又是甲醇渗透膜。由于引入水清洁阳极,有效避免了甲醇的累积,提高了该传感器稳定性和重现性。该传感器测量范围最大可以达到5 mol/L,适合于直接甲醇燃烧电池(DMFC)系统中甲醇的监测。A drive mode methanol concentration sensor based on membrane electrode assembly （MEA） is provided. The methanol solution permeated to anode through Nation MEA when methanol solution is fed through cathode. Nation is a electrolytic membrane as well as a methanol permeated membrant. Water used as cleaning reagent is fed through the anode chamber to avoid methanol accumulation; stability and reproducibility of the sensor is improved. The measuring range of the sensor is up to 5 mol/L. This sensor has potential application in DMFCs.

关 键 词：直接甲醇燃料电池 驱动模式 甲醇传感器 甲醇渗透 

分 类 号：O646[理学—物理化学] TM911[理学—化学]