▎ 摘　　要

NOVELTY - Apparatus comprises a chamber (310), a spray head (330) located inside the chamber and supplying and spraying an oxidized graphene solution (307), a heater (320) disposed at an upper portion of the chamber for heating the drying gas to dry the oxidized graphene solution in the chamber to three-dimensionally structure the oxidized graphene, a white light pulse irradiator (340) disposed on the side of the chamber for reducing dried graphene grains, and a collecting device (350) disposed in the lower portion of the chamber for collecting the three-dimensional structured by drying and the reduced graphene oxide. USE - The apparatus is useful for three-dimensional structuring and reducing graphene oxide (claimed) to produce porous graphene electrode for electrochemical device. ADVANTAGE - The apparatus provides porous graphene electrode having high specific surface area, and electrode density, and excellent electrochemical performance. DESCRIPTION OF DRAWING(S) - The drawing shows a spray dryer equipped with the white light pulse irradiator. Oxidized graphene solution (307) Chamber (310) Heater (320) Spray head (330) White light pulse irradiator (340) Collecting device (350)