期刊
JOURNAL OF POWER SOURCES
卷 196, 期 6, 页码 3244-3248出版社
ELSEVIER
DOI: 10.1016/j.jpowsour.2010.11.104
关键词
KOH doped polybenzimidazole; Durability; Air-breathing; Alkali direct ethanol fuel cell
资金
- National Natural Science Foundation of China [20776139]
- Hi-Tech Research and Development Program of China [2009AA05Z121, 2007AA05Z159]
Recently, KOH doped polybenzimidazole (PBI/KOH) membrane has been reported as polymer electrolyte membrane for alkaline direct alcohol fuel cell (ADAFC), but little is known about its durability for ADAFC application. In this paper, the durability of PBI/KOH membrane for air-breathing alkaline direct ethanol fuel cell (ADEFC) is evaluated by means of ex situ and in situ tests. In the case of ex situ durability test, the ionic conductivity of PBI/KOH degrades from initial 0.023 S cm(-1) to 0.01 S cm(-1) after 100 h, and the degrading rate was 1.3 x 10(-4) S cm(-1) h(-1). As for in situ test. Pt-free air-breathing ADEFC with PBI/KOH membrane can output a peak power density of 16 mW cm(-2) at 60 degrees C. Moreover, it can stably operate for 336 h above 0.3 V. In addition, the interaction between KOH and PBI matrix is also explored by density functional theory study. (c) 2010 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据