Zahoor, Awan, et al. “Effect of Varying Percentages of Co3O4 Nanoparticles on the Behavior of (ORR OER) BifunctionalCo3O4 α-MnO2 Electrocatalyst”. TECCIENCIA, vol. 18, no. 34, May 2026, pp. 43-52, doi:10.18180/tecciencia.2022.34.4.