Phase-Separated Polyaniline/Graphene Composite Electrodes for High-Rate Electrochemical Supercapacitors

Jifeng Wu; Qin'e Zhang; An'an Zhou; Zhifeng Huang; Hua Bai; Lei Li

doi:10.1002/adma.201601153

Phase-Separated Polyaniline/Graphene Composite Electrodes for High-Rate Electrochemical Supercapacitors

Adv Mater. 2016 Dec;28(46):10211-10216. doi: 10.1002/adma.201601153. Epub 2016 Oct 10.

Authors

Jifeng Wu¹, Qin'e Zhang¹, An'an Zhou¹, Zhifeng Huang¹, Hua Bai¹, Lei Li¹

Affiliation

¹ College of Materials, Xiamen University, Xiamen, 361005, P. R. China.

PMID: 27723115
DOI: 10.1002/adma.201601153

Abstract

Polyaniline/graphene hydrogel composites with a macroscopically phase-separated structure are prepared. The composites show high specific capacitance and excellent rate performance. Further investigation demonstrates that polyaniline inside the graphene hydrogel has low rate performance, thus a phase-separated structure, in which polyaniline is mainly outside the graphene hydrogel matrix, can enhance the rate performance of the composites.

Keywords: diffusion; electrochemical polymerization; rate performance.