کلیدواژهها
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electro-catalyst, Metal free, Oxygen reduction reaction, Halogen, Graphene.
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چکیده
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metal free electro-catalysts based on halogen doped reduced graphene oxide (X-RGO) have
shown promising oxygen reduction reaction (ORR) activity in alkaline media. In this study, we
report a facil method to synthesis of RGO from graphite electrodes using ionic liquid-assisted
electrochemical exfoliation and Cl-RGO and Br-RGO in solution phase. The characterization of
synthesized catalysts have been investigation by FT-IR, Raman and XRD techniques. We have
evaluated the effectiveness of doping and performed electrochemical measurements (involving
chronoamprometry, cyclic voltammetry, and linear sweep voltammetry and impedance
spectroscopy) of the ORR activity in 0.5 M KOH solution. The resulting kinetic of ORR process
by X-RGO electro-catalysts becomes improve more than RGO.
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