期刊
JOURNAL OF MEMBRANE SCIENCE
卷 357, 期 1-2, 页码 130-133出版社
ELSEVIER
DOI: 10.1016/j.memsci.2010.04.010
关键词
In situ membrane fabrication; Membrane electrode assembly; Polybenzimidazole; Proton exchange membrane fuel cell
资金
- New and Renewable Energy RD Program [2008-N-FC12-J-01-2-100]
- Ministry of Knowledge Economy (MKE), Republic of Korea [M2009010025]
- Brain Korea (BK) 21 Project
Polybenzimidazoles (p-PBI and m-PBI) were synthesized by the reaction of 3,3-diaminobenzidine with terephthalic acid or isophthalic acid in polyphosphoric acid at 220 degrees C for 20 h. These PBI membranes were prepared by two methods: conventional casting (post-membrane fabrication) and direct casting (in situ fabrication). Their properties were found to be dependant on their polymer structure as well as the membrane casting method used in the fabrication process. p-PBI demonstrated higher ion conductivity and greater mechanical properties than m-PBI. The membrane produced by the direct casting method resulted in higher ion conductivity than that produced by the conventional casting method. For these reasons, p-PBI membrane formed by a direct casting method promises to enhance the performance of proton exchange membrane fuel cells (PEMFCs). (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