Journal
RSC ADVANCES
Volume 6, Issue 80, Pages 76575-76581Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c6ra16153g
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Funding
- Australian Research Council [DP150100765]
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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 m(2) 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 supercapacitors.
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