| abstract |
The invention belongs to the technical field of supercapacitor material preparation, and relates to a cobalt tetroxide/manganese dioxide/carbon cloth supercapacitor electrode material and a preparation method. Cobalt tetroxide was prepared by growing ZIF67 derivative on carbon cloth, and manganese dioxide was electrochemically deposited on the surface of cobalt tetroxide to form a composite material cobalt tetroxide/manganese dioxide/carbon cloth. In the present invention, transition metal oxides are supported on the surface of cobalt tetroxide with high specific surface area and good electrical conductivity in a composite manner to prepare cobalt tetroxide/manganese dioxide/carbon cloth composite material. The synergistic effect between the components of the composite material can make each component enhance each other's strengths and avoid weaknesses, and at the same time combine the high cycle life, high power density, high stability of electric double layer capacitors and high specific capacitance characteristics of pseudocapacitors, thereby improving the comprehensive performance of supercapacitors. performance. |