华侨大学杨晓冬--中文主页-- A direct methanol fuel cell without polymer electrolyte membrane and precious metal cathodic catalyst

A direct methanol fuel cell without polymer electrolyte membrane and precious metal cathodic catalyst: 点击次数：; 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

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