▎ 摘　　要

NOVELTY - Preparation of single-walled carbon nanotubes and graphene microchip nanocomposite electrode comprises ultrasonic shaking single-walled carbon nanotube in concentrated sulfuric acid and concentrated nitric acid for 1 hour, diluting with deionized water through vacuum filter until pH is 7, and drying to get acidified single-walled carbon nanotube; adding to anhydrous ethanol together with nanographene, adding OP emulsifier as dispersant and ethyl cellulose as binder, and ultrasonic shaking for 1 hour; and uniformly coating on glass substrate, drying, and sintering. USE - Method for preparing single-walled carbon nanotubes and graphene microchip nanocomposite electrode (claimed). ADVANTAGE - The method is simple. The electrode has large specific surface area, fast carrier spreading speed and good electrode performance.