Turning carbon-ZnMn2O4 powder in primary battery waste to be an effective active material for long cycling life supercapacitors: In situ gas analysis

A simple and chemical-free recycled carbon-ZnMn2O4 powder (composite) from the spent Zn-carbon batteries is proposed as an effective active material for the supercapacitor. This approach may amplify the economic and environmental benefits of the recycling process. We also synthesized the spherical MnOx nanoparticles by the calcination followed by the chemical treatment. Recycled composite and the MnOx nanoparticles were comprehensively...