▎ 摘　　要

NOVELTY - A three-dimensional structured cobaltosic oxide/graphene flexible electrode preparing method involves centrifuging graphene oxide solution and filtering to obtain pre-treated graphene oxide solution. The solution is placed in foam nickel and dried to obtain reacted material. The reacted material is dried to obtain graphene oxide. The graphene oxide is dried, placed in chemical vapor deposition furnace. The graphene/foam nickel material is placed in stainless steel reaction kettle, sealed to obtain foam nickel material. The foam nickel material is washed to obtain the finished product. USE - Method for preparing three-dimensional structured cobaltosic oxide/graphene flexible electrode. ADVANTAGE - The method enables preparing three-dimensional structured cobaltosic oxide/graphene flexible electrode with better recycling stability and great specific surface area. DETAILED DESCRIPTION - A three-dimensional structured cobaltosic oxide/graphene flexible electrode preparing method involves centrifuging graphene oxide solution at a speed of 3000-5000 rpm for 2-10 minutes, ultrasonic processing for 10-30 minutes and filtering the impurity to obtain pre-treated graphene oxide solution. The pre-treated graphene oxide solution is placed in foam nickel under the room temperature for 1-5 minutes and dried in vacuum drying box at 50-100 degrees C for 3-10 minutes to obtain reacted material. The reacted material is placed under the room for 1-5 minutes, dried at 50-100 degrees C for 1-5 minutes and repeated for 2-9 times to obtain graphene oxide. The graphene oxide is dried at 50-200 degrees C for 3-10 minutes under hydrogen protection atmosphere, placed in chemical vapor deposition furnace for 1-3 hours to obtain three-dimensional structured graphene/foam nickel material. The graphene/foam nickel material is placed in stainless steel reaction kettle containing acetic acid cobalt water solution and hexamethylenetetramine water solution, sealed at 50-300 degrees C for 1-12 hours to obtain foam nickel material. The foam nickel material is washed using distilled water for 3 times to obtain the finished product.