Three-dimensional (3D) network of graphene hydrogel (GDH) was obtained by organic synthesis, 1,8-diaminooctane (OMDA) used as the linker. Structure-tunable 3D graphene network, i.e. close-cell structure (GDH-1) and open-pore structure (GDH-2) were achieved via different connection paths between covalent bonds which resulting high specific capacitance and good rate capability.
Bibliographical noteFunding Information:
The authors would like to acknowledge the financial supports from Nanjing University of Post and Telecommunication basic research program ( NY 212002 ), the Ministry of Education of China Innovative Research Team in University ( IRT1148 ) and the Key Project of National High Technology Research of China ( 2011AA050526 ).
- Close-cell and open-pore
- Covalent bonds
- Graphene hydrogel
- Three-dimensional graphene