Citation: Ting-yang Dai, Rong Tang, Xiao-xiao Yue, Liang Xu, Yun Lu. Capacitance Performances of Supramolecular Hydrogels Based on Conducting Polymers[J]. Chinese Journal of Polymer Science, ;2015, 33(7): 1018-1027. doi: 10.1007/s10118-015-1647-6 shu

Capacitance Performances of Supramolecular Hydrogels Based on Conducting Polymers

1.
Department of Polymer Science and Engineering, State Key Laboratory of Coordination Chemistry, Key Laboratory of High Performance Polymer Materials and Technology of Ministry of Education, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China

Received Date: 31 October 2014
Revised Date: 31 December 2014

Fund Project: This work was financially supported by the National Natural Science Foundation of China (Nos. 21174059 and 21374046), China Postdoctoral Science Foundation (No. 2013M530249), Program for Changjiang Scholars and Innovative Research Teams in Universities, Open Project of State Key Laboratory of Superamolecular Structure and Materials (No. SKLSSM201416) and the Testing Foundation of Nanjing University.

The capacitance performances of poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) (PEDOT-PSS) supramolecular hydrogels have been investigated systematically. The materials show a specific capacitance of 67 F/g and display excellent rate capability at the scan rate as high as 5000 mV/s in the cyclic voltammogram measurements, accompanied by good cycle stability. On the basis of the measurements of the microscale morphologies, specific areas and electrical conductivities, the mechanisms for the improvement of the electrochemical properties are discussed and ascribed to the novel porous microstructures of the hydrogels and the synergetic effect of the rigid PEDOT and soft PSS components. Furthermore, polyaniline (PAn) is compounded with the PEDOT-PSS hydrogels through an interfacial polymerization process, endowing the hydrogel materials with a higher specific capacitance of 160 F/g at the scan rate of 5000 mV/s. The significance of this work lies in the demonstration of a novel method to solve the problems of conducting polymers in electrochemical applications.
- Conducting polymers,
- Hydrogels,
- Capacitance performances,
- Rate capability,
- Supercapacitors
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