Solution Combustion Synthesis of Cobalt Oxide Nanostructure as a Supercapacitor

Cobalt oxide nanoparticles (Co3O4) have been prepared by the solution combustion synthesis from cobalt nitrate as the oxidizer and urea as the fuel at the stochiometric fuel-to-oxidant ratio. X-ray powder diffraction (XRD) was demonstrated the crystalline nanostructure of the cobalt oxide by the size of . The Brunauer-Emmett-Teller (BET) specific surface area was meassured by 54.69 m2.g-1. Electrochemical characterization of the synthesized powders, i.e., cyclic voltametry, was conducted in 6 M KOH as the electrolyte where a gravimetric capacitance of 264.16 F.g-1 was obtained. Furthermore, the synthesized cobalt oxide showed the surface area of 54.69 m2.g-1 together with a capacitive behavior. Therefore, such Co3O4 synthesized by the solution combustion synthesis could be an appropriate candidate as the electrochemical capacitor.

کلیدواژه ها:

Cobalt oxide ، Nanoparticle ، Electrochemical capacitor ، Solution combustion