4.5 Article

Quaternized graphene oxide modified ionic cross-linked sulfonated polymer electrolyte composite proton exchange membranes with enhanced properties

期刊

SOLID STATE IONICS
卷 294, 期 -, 页码 43-53

出版社

ELSEVIER SCIENCE BV
DOI: 10.1016/j.ssi.2016.07.002

关键词

Proton exchange membrane; Sulfonated poly(ether sulfone); Quaternized graphene oxide; Ionic cross-linked; Properties

资金

  1. National Natural Science Foundation of China [21574017]

向作者/读者索取更多资源

A series of novel ionic cross-linked sulfonated poly(ether sulfone) (SPES)-based proton exchange membranes (PEMs) were successfully constructed by using quaternized graphene oxide (QGO) as the inorganic fillers and cross-linking agents. The ionic cross-linking networks were implemented by the interactions between the sulfonic add groups of SPES and the quaternary ammonium groups of QGO. The influences of different loading contents of QGO on the properties of the ionic cross-linked composite membranes were studied. The composite membranes showed the enhanced mechanical properties and improved oxidative stabilities. Meanwhile, the swelling ratio, water uptake and methanol permeability of the ionic cross-linked SPES/QGO composite membranes were much lower than that of the pristine SPES membrane. The swelling ratio and water uptake of SPES-10-QGO composite membrane had the minimum values among all the composite membranes. In addition, although the proton conductivity of ionic cross-linked SPES membranes by QGO decreased, SPES-10-QGO still exhibited high proton conductivity of about 0.08 S cm(-1) at 80 degrees C. All the results indicated that the ionic cross-linked composite membranes with balanced properties were the potential candidate materials for PEMs. (C) 2016 Published by Elsevier B.V.

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。

评论

主要评分

4.5
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据