碱性电解质膜直接甲醇燃料电池  

Alkaline electrolyte membrane direct methanol fuel cell

作　　者：夏朝阳[1] 黄爱宾[1] 汪洋[1] 卢善富[1] 庄林[1] 陆君涛[1] 肖超渤[1] 

机构地区：[1]武汉大学化学与分子科学学院,湖北武汉430072

出　　处：《电池》2004年第3期227-228,共2页Battery Bimonthly

基　　金：国家"973"项目 (TG2 0 0 0 0 2 64 0 8);国家"863"项目 ( 2 0 0 2AA5 170 3 0 ) ;Ford NSFC项目 ( 2 0 12 2 10 1)

摘　　要：碱性电解质膜直接甲醇燃料电池 (AEMDMFC)由于采用了碱性体系 ,阴阳极的电催化性能大幅提高 ,许多在强酸介质中无法使用的非铂金属和氧化物成为可选的催化剂 ,电渗方向的改变也抑制了甲醇从阳极向阴极的穿透。这些优点使AEMDMFC有望解决长期困扰质子交换膜直接甲醇燃料电池 (PEMDMFC)的难题 ,不过AEMDMFC阳极区电解质碳酸化所引起的热力学电压Q损失也是不容忽视的。论述了AEMDMFC的特征 ,分析了其热力学上的缺点和动力学方面的优势 。Benefited from the alkaline media, the anodic and cathodic catalytic properties in an alkaline electrolyte membrane direct methanol fuel cell (AEMDMFC) were greatly improved. Some non-platinum metals and metal oxides, which were unstable in acidic media, were now applicable as catalysts. The opposite direction of electro-osmosis could effectively depress the methanol crossover. With these advantages, AEMDMFC was hopeful to overcome those difficulties occurring in proton exchange membrane direct methanol fuel cell (PEMDMFC). However, one could not ignore the large thermodynamic voltage loss caused by the electrolyte carbonation in the AEMDMFC anode. The characteristics of AEMDMFC were discussed, both thermodynamic disadvantages and kinetic advantages were analyzed, an outlook for the AEMDMFC development was presented.

关 键 词：直接甲醇燃料电池 碱性聚合物电解质 电催化 电渗 

分 类 号：TM911.4[电气工程—电力电子与电力传动]