Grid-shaped porous-structure carbon-supported nickel oxide applied to supercapacitor and preparation method of grid-shaped porous-structure carbon-supported nickel oxide

The invention provides a grid-shaped porous structure carbon-loaded nickel oxide applied to a supercapacitor and a preparation method of the grid-shaped porous structure carbon-loaded nickel oxide, and belongs to the technical field of material preparation, the specific capacitance of the compound is 1320-1630F/g under the unit of 1Ag , and the rate capability of the compound is 70.2%-76% under the unit of 20Ag . According to the method, firstly, solid spherical Ni-MOF is subjected to pore forming through a salt template method, a sea urchin-shaped porous structure Ni-MOF precursor is obtained through a reaction, then the sea urchin-shaped porous structure Ni-MOF precursor is annealed in air, and the grid-shaped porous structure carbon-loaded nickel oxide NiO2 (at) C is obtained. The preparation method is simple, environment-friendly and low in cost, the carbon-supported nickel oxide NiO2 (at) C of the grid-shaped porous structure can increase the specific surface area of the material, provide enoug