Multi-element composite nano-material, preparation method thereof and application thereof

[0102] Weigh 5mmol of cobalt acetate, dissolve it in 50ml of ethanol solution, and stir fully to form a uniform cobalt acetate ethanol solution; then weigh 0.05g of graphene and add it, ultrasonically disperse for 1 hour, so that the graphene is evenly dispersed in the cobalt acetate ethanol solution ; 50ml of distilled water and tetramethylammonium hydroxide mixed solution were added to the resulting mixed solution, ultrasonically reacted for 2 hours, then centrifuged, washed, and dried to obtain the graphene / cobalt tetroxide binary compound;

[0103] Add 0.05g of graphene / cobalt tetroxide binary composite to 25ml of distilled water and ethanol mixed solution, ultrasonic treatment for 3 hours; then in ice bath, keep the temperature below 10℃, add 1ml of concentrated sulfuric acid and 1.5ml of aniline monomer , sonicated for 2 hours; then weighed 3g of ammonium persulfate and dissolved it in 25ml of distilled water to prepare an ammonium persulfate solution, slowly added the am...

[0105] Weigh 1mmol of manganese chloride, dissolve it in 50ml of ethanol solution, stir fully to form a uniform manganese chloride ethanol solution; then weigh 0.05g of carbon nanotubes into it, ultrasonically disperse for 0.5 hours, so that the carbon nanotubes are evenly dispersed in Manganese chloride ethanol solution; add 50ml of distilled water and tetramethylammonium hydroxide mixed solution to the resulting mixed solution, ultrasonically react for 1 hour, then centrifuge, wash, and dry to obtain the carbon nanotube / manganese tetraoxide binary Complex;

[0106] Add 0.02g of carbon nanotubes / manganese tetraoxide binary composite to 25ml of distilled water and ethanol mixed solution, ultrasonic treatment for 4 hours; then in ice bath, keep the temperature below 10℃, add 1ml of concentrated sulfuric acid and 0.5 ml of aniline monomer, sonicated for 1.5 hours; then weighed 4g of ammonium persulfate and dissolved it in 25ml of distilled water to prepare an ammonium persulfate...

[0108] Weigh 10mmol cobalt acetate, dissolve it in 50ml ethanol solution, stir fully to form a uniform cobalt acetate ethanol solution; then weigh 0.1g graphene and 0.1g graphene nanobelts and add them, and ultrasonically disperse for 1 hour to make graphene and Graphene nanoribbons are uniformly dispersed in cobalt acetate ethanol solution; then 100ml of 0.1mol / L sodium hydroxide solution is added dropwise to the mixed solution, ultrasonically reacted for 2 hours, and then centrifuged, washed and dried to obtain graphene / graphene Nanobelt / cobalt tetroxide ternary composite;

[0109] Add 0.2g of graphene / graphene nanoribbon / cobalt trioxide ternary compound into 25ml of distilled water and ethanol mixed solution, ultrasonic treatment for 2 hours; then keep the temperature below 10℃ in ice bath, add 1ml of concentrated sulfuric acid and 0.5ml of pyrrole monomer, sonicated for 3 hours; then weighed 2g of ammonium persulfate and dissolved it in 25ml of distilled water to prepare a...