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Hierarchical Porous Graphene/Polyaniline Composite Film with Superior Rate Performance for Flexible Supercapacitors
Author(s) -
Meng Yuena,
Wang Kai,
Zhang Yajie,
Wei Zhixiang
Publication year - 2013
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.201303529
Subject(s) - materials science , supercapacitor , graphene , polyaniline , composite number , capacitance , composite material , electrode , porosity , nanowire , nanotechnology , polymer , polymerization , chemistry
A highly flexible graphene free‐standing film with hierarchical structure is prepared by a facile template method. With a porous structure, the film can be easily bent and cut, and forms a composite with another material as a scaffold. The 3D graphene film exhibits excellent rate capability and its capacitance is further improved by forming a composite with polyaniline nanowire arrays. The flexible hierarchical composite proves to be an excellent electrode material for flexible supercapacitors.