Hierarchical porous graphene/polyaniline composite film with superior rate performance for flexible supercapacitors.

@article{Meng2013HierarchicalPG,
  title={Hierarchical porous graphene/polyaniline composite film with superior rate performance for flexible supercapacitors.},
  author={Yuena Meng and Kai Wang and Yajie Zhang and Zhixiang Wei},
  journal={Advanced materials},
  year={2013},
  volume={25 48},
  pages={6985-90}
}
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. 
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