JOURNAL OF LIGHT INDUSTRY

CN 41-1437/TS  ISSN 2096-1553

Volume 32 Issue 4
July 2017
Article Contents
FANG Hua, WANG Li-zhen, GAO Ke-zheng, et al. Study on preparation and capacitive properties of three dimensional porous graphene by microwave radiation pyrolysis expansion method[J]. Journal of Light Industry, 2017, 32(4): 8-15. doi: 10.3969/j.issn.2096-1553.2017.4.002
Citation: FANG Hua, WANG Li-zhen, GAO Ke-zheng, et al. Study on preparation and capacitive properties of three dimensional porous graphene by microwave radiation pyrolysis expansion method[J]. Journal of Light Industry, 2017, 32(4): 8-15. doi: 10.3969/j.issn.2096-1553.2017.4.002 shu

Study on preparation and capacitive properties of three dimensional porous graphene by microwave radiation pyrolysis expansion method

  • Received Date: 2017-04-28
    Available Online: 2017-07-15
  • Wormlike three dimensional (3D) porous graphene was prepared by microwave radiation pyrolysis expansion method.The morphology and pore structure of the as-prepared samples were characterized by SEM, TEM and N2 adsorption/desorption test.Simulated supercapacitors were assembled to perform electrochemical test by using the as-prepared 3D graphene.And the electrochemical properties were tested by cyclic voltammetry, galvanostatic charge discharge and electrochemical impedance test. The results showed wormlike 3D porous structure was characterized by translucent gossamer-like morphology and had obvious folds belonging to grephene nanosheet. The sample showed a specific surface area of 158.7 m2·g-1 and an average pore size of 11.2 nm.The as-prepared graphene showed excellent electrochemical performances, with a specific capacitance of 161 F·g-1 at 1.25 A·g-1 and 91 F·g-1 when the current increased to 25.00 A·g-1. At 1.25 A·g-1,the capacity retention rate was 90% after cycling charge and discharge 5000 times,which indicated the cycle stability was excellent.
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