Eventos Anais de eventos
CONEM 2018
X Congresso Nacional de Engenharia Mecânica
CuCo2O4 nanoparticles coated on nickel foam electrode for high performance supercapacitors
Submission Author:
Mariana Maier , RJ
Co-Authors:
Mariana Maier, SURESH BABU RAJENDRAN, Gabriela Sánchez, Leandro Marques dos Santos, Daniel Sampaio, Ana Barros
Presenter: Daniel Sampaio
doi://10.26678/ABCM.CONEM2018.CON18-0293
Abstract
In this work will be presented a promissor material, the ternary oxide CuCo2O4 coated on nickel foam electrode in the construction of a high-performance supercapacitor. The CuCo2O4 was synthesized by hydrothermal method for 12 hours at 450ºC. The performance analysis was carried out through the physical and electrochemical characterizations, such as cyclic voltammetry, charge-discharge test and field emission scanning electron microscopy. The electrode showed the specific capacitance of 203.56 F/g at 0.5 A/g current density, obtained in a 2 M KOH electrolytic solution. The CuCo2O4 presented satisfactory results, since it combines the advantages of all components: good conductivity, good electrochemical performance, low toxicity and pseudocapacitive properties. Also, the FESEM image confirmed the material in nanosized sheet-like structure with some porosity and high surface area, allowing the ions movement between the electrode and the electrolyte and turning the reactions faster.
Keywords
supercapacitors, pseudocapacitor, metal oxide, Copper, cobalt
