期刊
POLYMER
卷 153, 期 -, 页码 438-444出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.polymer.2018.08.039
关键词
Nanocomposite electrolyte; Ionic conductivity; Poly (ionic liquid)s
资金
- National Natural Science Foundation of China [51473186, 51703090]
- Natural Science Foundation of Guangdong, China [2015B090925002]
- Science and Technology Program of Guangzhou, China [201508010052, 201604010105]
- Fundamental Research Funds for the Central Universities [161gpy17]
Poly (ionic liquid)s are an emerging family of promising polymer electrolytes. In this study, a nanocomposite electrolyte based on ice-templated high-graphene oxide-loading poly (ionic liquid) (GO/PIL) was prepared to significantly improve ion transport of PIL. X-ray diffraction patterns exhibited that GO was well-loaded in the asprepared composites event at high content of 50 wt%. The Raman and UV-Vis spectra demonstrated the strong interaction between GO and PIL. Morphology observations showed that PIL could well contact with GO, forming so-called PIL&GO nanosheets that were connected in an ionic-conducting network, which facilitated the ion transport in the PIL, as revealed by conductive atomic force microscope investigation. As a result, with a superhighway for ions built, PIL-based composite electrolyte obtained a higher ionic conductivity of 3.1 x 10(-4) S cm(-1) at 50 wt% GO, 775% of that of pure PIL electrolyte. Such ice-templated nanocomposite electrolytes possess potential applications for various electrochemical devices.
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