Citation: GAO Su-Hua, SHEN Hao-De, LI Hong-Ji. Preparation and Electrochemical Properties of Poly(3, 4-ethylenedioxothiophene)/Graphene/Ti Electrode[J]. Chinese Journal of Inorganic Chemistry, ;2019, 35(7): 1176-1182. doi: 10.11862/CJIC.2019.116 shu

Preparation and Electrochemical Properties of Poly(3, 4-ethylenedioxothiophene)/Graphene/Ti Electrode

School of Chemistry and Chemical Engineering, Tianjin University of Technology, Tianjin 300384, China

Corresponding author: LI Hong-Ji, hongjili@yeah.net
Received Date: 18 January 2019
Revised Date: 15 March 2019

Figures(7)

Poly(3, 4-ethylenedioxothiophene) (PEDOT)/graphene/Ti electrodes were synthesized via the two-step method. The graphene was grown on Ti substrate by the direct current arc plasma jet chemical vapor deposition technique, and PEDOT was deposited on the surface of graphene by electrochemical oxidation polymerization. The PEDOT layers with nanowires or foam morphologies were synthesized by adjusting the polymerization cycles. The fabricated PEDOT/graphene/Ti electrodes demonstrated high specific capacitance and good coulombic efficiency in 0.1 mol·L^-1 KCl electrolyte. The maximum potential window of the 400-cycle PEDOT/graphene/Ti electrode was 1.4 V. The specific capacitance calculated from the CV curve at a scan rate of 10 mV·s^-1 was about 269.6 mF·cm^-2 (0 to 1.2 V). The specific capacitance of the 400-cycle PEDOT/graphene/Ti electrode was calculated to be 42 times larger than the PEDOT/Ti electrode.
- graphene,
- electrodes,
- chemical vapor deposition,
- electrochemistry
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沈阳化工大学材料科学与工程学院沈阳 110142