发表刊物：Journal of Power Sources
关键字：Direct methanol fuel cellsPolymersMembranesPerovskite phases
摘要：Direct methanol fuel cells (DMFCs) are a promising power source for mobile devices. However, DMFCs currently experience the technical shortcomings of high cost due to the use of noble metal catalysts and polymer electrolyte membranes (PEMs), low power density because of their low catalytic efficiency and cathode catalyst poisoning by methanol, which crosses through the PEM from anode to cathode. Here, we report a new DMFC structure utilizing a polymer fiber membrane (PFM), which is electrolyte-permeable, instead of a PEM. An inexpensive perovskite-type oxide, LaNiO3, is used as the cathode catalyst, which has shown excellent tolerance to methanol-poisoning and good catalytic activity for oxygen reduction reaction (ORR). The peak power density can reach 103 mW cm−2 at 65 °C. This improvement in performance is due to the lower electrical resistance of the PFM.
论文类型：期刊论文
学科门类：工学
文献类型：J
期号：234
页面范围：272-276
是否译文：否
发表时间：2013-07-15
DOI码：10.1016/j.jpowsour.2013.01.176
第一作者：Xiaodong Yang
合写作者：XiaoZhu Wei,, Sai Li,Li Wang,Yuan Fang
通讯作者：Yongning Liu
发布期刊链接：https://doi.org/10.1016/j.jpowsour.2013.01.176