文献类型：期刊文献

英文题名：A self-healable and easily recyclable supramolecular hydrogel electrolyte for flexible supercapacitors

作者：Guo, Yunzhou[1];Zhou, Xiao[1];Tang, Qianqiu[1];Bao, Hua[1];Wang, Gengchao[1];Saha, Petr[2]

机构：[1]E China Univ Sci & Technol, Shanghai Key Lab Adv Polymer Mat, Sch Mat Sci & Engn, Key Lab Ultrafine Mat,Minist Educ, POB 289,130 Meilong Rd, Shanghai 200237, Peoples R China;[2]Tomas Bata Univ, Univ Inst, Ctr Polymer Syst, Tr T Bati 5678, Zlin 76001, Czech Republic

年份：2016

卷号：4

期号：22

起止页码：8769

外文期刊名：JOURNAL OF MATERIALS CHEMISTRY A

收录：;EI(收录号：20162402486717);WOS:【SCI-EXPANDED(收录号:WOS:000378583200032)】；

基金：We greatly appreciate the financial support of the Shanghai Municipality Research Project (15520720500), National Natural Science Foundation of China (51173042), and Czech-Chinese Cooperation Project (LH14273) supported by the Ministry of Education, Youth and Sports of the Czech Republic.

语种：英文

外文关键词：Crosslinking - Polypyrroles - Potassium compounds - Chlorine compounds - Hydrogen bonds - Polyelectrolytes - Hydrogels - Cost effectiveness - Supramolecular chemistry

摘要：Although research on polymer hydrogel electrolytes has achieved great progress, their practical application is restricted due to their vulnerability and non-recyclability problems caused by covalent cross-linking effects. Herein, we report a ferric ion cross-linked supramolecular PM hydrogel electrolyte (KCl-Fe3+/PAA), in which the ionic bond and hydrogen bond endow the KCl-Fe3+/PAA hydrogel electrolyte with favorable self-healing ability and easy-recyclability. In addition, considering the eco-friendly and cost effective properties of both ferric ion and polyacrylic acid, there would be great potential for this KCl-Fe3+/PAA hydrogel electrolyte to be broadly applied. Meanwhile, the hydrogel electrolyte maintained good mechanical performance (extensibility > 700%, and stress > 400 kPa) and excellent conductivity (0.09 S cm(-1)), which completely satisfy the demands of flexible supercapacitors. After being assembled with graphene foam supported potypyrrote electrodes, the electrochemical performance of this flexible supercapacitor is comparable to that of its liquid electrolyte counterpart.