Solid-phase electrochemical reduction of graphene oxide films in alkaline solution.
Graphene oxide (GO) film was evaporated onto graphite and used as an electrode to produce electrochemically reduced graphene oxide (ERGO) films by electrochemical reduction in 6 M KOH solution through voltammetric cycling. Fourier transformed infrared and Raman spectroscopy confirmed the presence of ERGO. Electrochemical impedance spectroscopy characterization of ERGO and GO films in ferrocyanide/ferricyanide redox couple with 0.1 M KCl supporting electrolyte gave results that are in accordance with previous reports. Based on the EIS results, ERGO shows higher capacitance and lower charge transfer resistance compared to GO.
Nanotechnology & Catalysis Research Centre, Institute of Postgraduate Studies, University Malaya, Kuala Lumpur 50603, Malaysia. wjbasirun@gmail.com.
Wan J
WJ
Basirun
Mehran
M
Sookhakian
Saeid
S
Baradaran
Mohammad R
MR
Mahmoudian
Mehdi
M
Ebadi