Preparation of Co3O4 doped resorcinol formaldehyde xerogels and their supercapacitor performance

Abstract This study successfully performs supercapacitor performances of cobalt oxide (Co 3 O 4 )-doped resorcinol formaldehyde (RF) xerogels. The results reveal a maximum specific capacitance (CS) value of 135.1 Fg − 1 for the 25%-Co 3 O 4 doped RF xerogel electrode at 0.1 Ag − 1 current density, indicating a promising performance. The maximum energy density is 31.39 Whkg − 1 for the 25% Co 3 O 4 -doped RF xerogel electrode at 0.1 Ag − 1 current density, suggesting a high potential for energy storage. The maximum power density is 744.33 Wkg − 1 for the 50% Co 3 O 4 doped RF xerogel electrode at 0.4 Ag − 1 current density, demonstrating a significant power output.