標題: A new graphene-modified protic ionic liquid-based composite membrane for solid polymer electrolytes
作者: Ye, Yun-Sheng
Tseng, Chi-Yung
Shen, Wei-Chung
Wang, Jing-Shiuan
Chen, Kuan-Jung
Cheng, Ming-Yao
Rick, John
Huang, Yao-Jheng
Chang, Feng-Chih
Hwang, Bing-Joe
應用化學系
Department of Applied Chemistry
公開日期: 2011
摘要: The production of a solid polymer electrolyte with high ionic conductivity and mechanical properties is the main fabrication challenge in application of polymer electrolyte membranes. This paper describes a novel polymer electrolyte membrane using protic ionic liquids (PILs) with ionic liquid polymer modified graphene (G) sheets [denoted PIL(NTFSI)-G] that exhibit dramatic enhancements in ionic conductivity (257.4%) and mechanical properties (345% improvement in tensile strength and a near 25-fold increase in modulus were achieved at 150 degrees C) with a minimal loading of PIL(NTFSI)-G (0.5 wt %). The addition of graphene, by sparing the high-cost PIL addition, gives a 20% cost-saving. The homogeneous distribution of graphene sheets as a 3D network through the polymer matrix in the composite membrane provides a high degree of continuous and interconnected transfer channels to facilitate ion transfer and enhance nanofiller-matrix adhesion to reinforce mechanical properties. This newly developed material provides a potential route toward the design and fabrication of polymer electrolytes.
URI: http://hdl.handle.net/11536/25950
http://dx.doi.org/10.1039/c1jm11152c
ISSN: 0959-9428
DOI: 10.1039/c1jm11152c
期刊: JOURNAL OF MATERIALS CHEMISTRY
Volume: 21
Issue: 28
起始頁: 10448
結束頁: 10453
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