电源技术2011，Vol.35Issue(12)：1543-1547,5.
基于运行参数的直接甲醇燃料电池的实验
Experimental study of DMFC based on operating parameters
摘要
Abstract
The effects of the methanol flow rate, air flow rate, temperature, cathode back pressure and methanol concentration on the performance of a direct methanol fuel cell (DMFC) were studied. The results show that the fuel cell performance increases first and then decreases when the methanol flow rate is increased, I.e., there exists an optimal methanol flow rate. The increasing air flow rate helps to exhaust the cathode water, so that the fuel cell performance is improved. Also, the fuel cell performance increases when the fuel cell temperature rises. The excessive air preheating temperature makes the cathode dehydration, thus reduces the fuel cell performance. The effect of methanol concentration on the performance of fuel cell is mainly due to the methanol permeability. There exists an optimal methanol concentration to make the fuel cell performance best The experiments show that the cathode back pressure can effectively suppress the methanol permeation.关键词
直接甲醇燃料电池/运行参数/甲醇渗透/伏安曲线Key words
direct methanol fuel cell/ operating parameters/ methanol crossover/ V-l curve分类
信息技术与安全科学引用本文复制引用
孙艳阳,胡鸣若,杨长幸..基于运行参数的直接甲醇燃料电池的实验[J].电源技术,2011,35(12):1543-1547,5.基金项目
上海市自然科学基金(08R1409800) （08R1409800）
