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Phase‐Separated Polyaniline/Graphene Composite Electrodes for High‐Rate Electrochemical Supercapacitors
Author(s) -
Wu Jifeng,
Zhang Qin'e,
Zhou An'an,
Huang Zhifeng,
Bai Hua,
Li Lei
Publication year - 2016
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201601153
Subject(s) - polyaniline , graphene , materials science , supercapacitor , nanotechnology , composite number , phase (matter) , electrode , electrochemistry , capacitance , composite material , polymer , polymerization , chemistry , organic chemistry
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.