CAJ | 학술논문

报道了用研制的Pt-Ru/C催化剂, 采用特殊工艺制备了膜电极, 并组装了直接甲醇质子交换膜单电池系统。考察了电极扩散层制备方法、催化剂层中催化剂、Teflon-C以及Nafion液的用量等电极制备工艺条件以及空气作为氧化剂对单电池性能的影响。结果表明：采用刷涂法制备电极扩散层比喷涂法好，催化剂层中催化剂的优化含量为0.6mg·cm-2，Teflon-C、Nafion液的最佳用量分别为0.3 mg·cm-2、0.5 mg·cm-2。当工作温度为80℃时，输出电压为0.3V，氧气作为阴极气体的输出电流密度为36mA·cm-2；而空气作为阴极气体的输出电流密度为22.5mA·cm-2。膜电极有效面积为9cm2的的液相进样直接甲醇/氧气燃料电池三电池电堆的最大功率为0.285W，此时输出电压为0.7V，输出电流为0.407A；而液相进样直接甲醇/空气三电池电堆的输出电压为0.635V，输出电流为0.252A时，最大功率为0.160W。
보도료용연제적Pt-Ru/C최화제, 채용특수공예제비료막전겁, 병조장료직접갑순질자교환막단전지계통。고찰료전겁확산층제비방법、최화제층중최화제、Teflon-C이급Nafion액적용량등전겁제비공예조건이급공기작위양화제대단전지성능적영향。결과표명：채용쇄도법제비전겁확산층비분도법호，최화제층중최화제적우화함량위0.6mg·cm-2，Teflon-C、Nafion액적최가용량분별위0.3 mg·cm-2、0.5 mg·cm-2。당공작온도위80℃시，수출전압위0.3V，양기작위음겁기체적수출전류밀도위36mA·cm-2；이공기작위음겁기체적수출전류밀도위22.5mA·cm-2。막전겁유효면적위9cm2적적액상진양직접갑순/양기연료전지삼전지전퇴적최대공솔위0.285W，차시수출전압위0.7V，수출전류위0.407A；이액상진양직접갑순/공기삼전지전퇴적수출전압위0.635V，수출전류위0.252A시，최대공솔위0.160W。
Using Pt-Ru/C catalyst as anode and cathode catalysts, the membrane electrode assembly was prepared and single direct methanol fuel cell system was installed. The effect of preparation methods of diffusion layer, catalyst content, Teflon-C content and Nafion content in catalyst layer on single cell performance were studied. The results showed that the performance was better in the diffusion layer prepared by paste than by spray; the best catalyst content was 0.6mg·cm-2，while that of Teflon-C, Nafion was 0.3 mg·cm-2 and 0.5 mg·cm-2 respectively。When the working temperature was 80℃ and output voltage was 0.3V，the output current density was 36mA cm-2 with oxygen as cathode oxidant and that was 22.5mA·cm-2 with air as oxidant. The maximum power of liquid-feed direct methanol/oxygen three-cell stack, where available MEA area was 9 mm2, was 0.285W，and its output voltage and current was 0.7V and 0.407A respectively. When air replaced oxygen as oxidant, the stack's voltage was 0.635V, its current was 0.252A and its maximum power was 0.160W.