Eventos Anais de eventos
COBEM 2019
25th International Congress of Mechanical Engineering
METAL OXIDE DOPED GRAPHITIC CARBON NITRIDE AS AN EFFICIENT ELECTRODE MATERIALS FOR SUPERCAPACITORS
Submission Author:
Raphael dos Santos , RJ
Co-Authors:
Raphael dos Santos, Thiago Barbosa, Leandro Marques Samyn, SURESH BABU RAJENDRAN, Ana Barros
Presenter: Raphael dos Santos
doi://10.26678/ABCM.COBEM2019.COB2019-0831
Abstract
In the present work, two different metal oxides doped graphitic carbon nitride (g-C3N4) such as manganese oxide doped g-C3N4 and copper oxide doped g-C3N4 were synthesized by single-step pyrolysis method and were utilized as efficient electrode materials for supercapacitors. The synthesized materials were mechanically coated on nickel foam as a base electrode. Those two oxides were choosing because of their good electrochemical characteristics and redox properties. The pseudocapacitive behaviors of the fabricated electrodes were characterized by cyclic voltammetry, galvanostatic charge-discharge and electrochemical impedance spectroscopy. At density current of 0.5 A/g, the manganese oxide electrode presented a specific capacitance of 61 F/g while the copper electrode reached 55.5 F/g at the same current density both in a 3M KOH electrolyte solution. The results revealed that metal oxide doped GCN electrodes shows good specific capacitances, better power characteristic and cyclic stability.
Keywords
supercapacitors, graphitic carbon nitride, copper oxide, manganese oxide, nickel foam
