PREPARATION METHOD FOR SELF-SUPPORTING THIN FILM OF GRAPHENE-ENHANCED THREE-DIMENSIONAL POROUS CARBON

摘要

Disclosed is a preparation method for a self-supporting thin film of graphene-enhanced three-dimensional porous carbon, comprising: formulating sodium carbonate, urea and glucose into an aqueous solution; evenly coating the resulting solution onto the rough surface of an electrolytic copper foil; drying same to obtain a precursor; introducing a protecting gas into a hearth and raising the furnace temperature to 550ºC-800ºC; placing the precursor prepared in this way into the hearth, and maintaining the temperature for 0.5-5 minutes; then moving the calcined product to a low temperature zone, and cooling the product to room temperature under the protection of argon gas; preparing a corrosive iron chloride hydrochloric acid solution; placing the calcined product prepared in this way into the corrosive solution at room temperature, and removing the salt template and copper foil to obtain a thin film-like sample; and cleaning same to remove the corrosive solution component and then drying, so as to obtain the self-supporting thin film of graphene-enhanced three-dimensional porous carbon.