| abstract |
The invention relates to a grid-shaped NiCo 2 O 4 /CNF material and a preparation method thereof and application in supercapacitors, comprising the following steps: (1) placing cobalt salt, nickel salt and urea in water, and mixing them evenly after stirring evenly liquid, carbon nanofibers are added, and a constant temperature hydrothermal reaction is carried out at 100 ° C ~ 150 ° C for 5 h ~ 24 h, after the reaction is completed, it is cooled to room temperature, and the intermediate product is taken out, washed and dried; The intermediate product is calcined at 200℃～400℃ for 1h～3h in an oxygen atmosphere, and after cooling, the grid-like NiCo 2 O 4 /CNF material is obtained; the grid-like NiCo 2 O 4 /CNF material is used as the active electrode The material is used in supercapacitors to improve the electrochemical performance of supercapacitors, and the specific capacitance is 400F/g ~ 500F/g. |