▎ 摘　　要

NOVELTY - Preparing graphene grid-reinforced titanium-based metal oxide anode involves grinding the titanium substrate with water sandpaper, paying attention to the chamfering of the edge of the titanium plate to avoid edge effects, rinsing with deionized water to remove metal debris and sand, then putting the titanium plate in an alkaline solution and heating at 100 degrees C for 1 hour to remove the oil on the surface of the titanium substrate. The titanium plate is put into the oxalic acid solution with a mass fraction of 100 degrees C and heating for 2 hours for acid etching. The acid-etched titanium plate is washed with deionized water and absolute ethanol for 3 times alternately to obtain rough titanium plate with a rough surface. The pretreated titanium plate is blow dried and stored in absolute ethanol. The graphene oxide is dissolved in n-butanol, absolute ethanol, and water mixed organic solvents. USE - Method for preparing graphene grid-reinforced titanium-based metal oxide anode. ADVANTAGE - The method enables to prepare graphene grid-reinforced titanium-based metal oxide anode that improves the electron transfer efficiency. DETAILED DESCRIPTION - Preparing graphene grid-reinforced titanium-based metal oxide anode involves grinding the titanium substrate with water sandpaper, paying attention to the chamfering of the edge of the titanium plate to avoid edge effects, rinsing with deionized water to remove metal debris and sand, then putting the titanium plate in an alkaline solution and heating at 100 degrees C for 1 hour to remove the oil on the surface of the titanium substrate. The titanium plate is put into the oxalic acid solution with a mass fraction of 100 degrees C and heating for 2 hours for acid etching. The acid-etched titanium plate is washed with deionized water and absolute ethanol for 3 times alternately to obtain rough titanium plate with a rough surface. The pretreated titanium plate is blow dried and stored in absolute ethanol. The graphene oxide is dissolved in n-butanol, absolute ethanol, and water mixed organic solvents. The solution is placed in an ultrasonic disperser for dispersion, and then stirred at a constant speed with a magnetic stirrer at room temperature, and repeated three times to obtain a well-dispersed dispersion. The graphene oxide and polystyrene PS microspheres are dissolved in a mixed organic solvent of n-butanol, absolute ethanol, and water. The solution is put in an ultrasonic disperser to disperse, then stirred at a uniform speed with a magnetic stirrer at room temperature, and repeated three times to obtain a well-dispersed dispersion. The RuCl3, SnCl4 and H2IrCl6 are dissolved in n-butanol, absolute ethanol and water mixed organic solvents, and stirred at a uniform speed with a magnetic stirrer at room temperature to obtain anode coating solution B. The anode coating solution A is coated on the surface of the titanium plate with a brush. The titanium plate is put in a drying oven to dry it, transferred to a resistance furnace and sintered, cooled at room temperature, and coated the anode coating solution B with the brush on the surface of the titanium plate. The titanium plate is put in the drying box and dry it in the middle, then transferred to the resistance furnace and sintered and cooled at room temperature. The above coating, drying, sintering and cooling steps are repeated to obtain a graphene mesh-reinforced titanium-based metal oxide.