Abstract
Nitrogen-doped porous carbons supported on three-dimensional (3D) graphene frameworks were prepared by decorating ZIF-8 or ZIF-67 onto graphene aerogels by a heterogeneous nucleation method and subsequent carbonization and etching processes. The resulting carbon composite exhibited a hierarchically porous structure and a high surface area of 207 m2 g-1. Due to the high electrical conductivity and high-rate transportation arising from graphene frameworks and nitrogen-doping, the ZIF-67 derived porous carbon/graphene composite (GA@CZIF-67-E) showed a high specific capacitance of 53 F g-1 at a scan rate of 5 mV s-1, and good cycle stability after 1000 cycles when applied in all solid- state super capacitors.
Original language | English |
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Pages (from-to) | 76575-76581 |
Number of pages | 7 |
Journal | RSC Advances |
Volume | 6 |
Issue number | 80 |
DOIs | |
Publication status | Published - 2016 |
Equipment
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Centre for Electron Microscopy (MCEM)
Peter Miller (Manager)
Office of the Vice-Provost (Research and Research Infrastructure)Facility/equipment: Facility