22 / 36
Page 56
Notes:
conferenceseries
.com
Joint Conference
July 17-18, 2017 Chicago, USA
International Conference on
DIAMOND AND CARBON MATERIALS & GRAPHENE AND SEMICONDUCTORS
Volume 6, Issue 6 (Suppl)
J Material Sci Eng, an open access journal
ISSN: 2169-0022
Diamond and Carbon 2017 & Graphene 2017
July 17-18, 2017
Porous full carbon film of graphene and activated carbon fiber for flexible supercapacitors
Guohua Sun
Institute of Coal Chemistry, China
B
inder-free and free-standing flexible carbon filmwith a high specific surface and bimodal porous structure was successfully
prepared by a facile vacuum-assisted filtration and subsequent annealing process, in which two-dimensional graphene
oxide and one-dimensional activated carbon fibres were employed as the basic building blocks. When the mass ratio of activated
carbon fiber to graphene oxide was up to 2, the as-prepared flexible film exhibited a high energy density of 20 Wh kg
-1
at a
power density of 11.3 kW kg
-1
, with a good rate capability of 63.6% retention from 1 A g
-1
to 8 A g
-1
and excellent capacitance
retention of 94.8% after 2000 cycles in a flexible supercapacitor with 1.0 M Et
4
NBF
4
/PC as the electrolyte.
Biography
Guohua Sun has his expertise in preparation of porous carbon materials and graphene, and application in storage components. He has developed high-performance
activated carbon and graphene in a large scale, which exhibits excellent electrochemical performance for supercapacitors.
sunguohua_1@sxicc.ac.cnGuohua Sun, J Material Sci Eng 2017, 6:6(Suppl)
DOI: 10.4172/2169-0022-C1-076