▎ 摘　　要

NOVELTY - The device has a first ground electrode (9) that is arranged in a dielectric pipe (6). A first high-voltage electrode (10), a third high-voltage electrode (12) and a fifth high-voltage electrode (14) are all connected to a nanosecond pulse power supply (1) through wires. Both the second high-voltage electrode (11) and the fourth high-voltage electrode (13) are electrically connected to a high-frequency AC power supply (2). A special-shaped glass tube is provided with a second ground electrode (15). An air inlet (17) and an air outlet (8) are respectively opened on a special-shaped glass tube (16). The gas outlet is communicated with a high-pressure cylinder (21) through an air inlet pipe. Argon is housed in the high-pressure cylinder. The openings on both sides of the special-shaped glass tube along the length direction are respectively sealed and connected with a first sealing and fixing plug (7). USE - Three-electrode coaxial DBD device with special-shaped structure for reducing graphene oxide. ADVANTAGE - The special-shaped structure three-electrode coaxial DBD device uses the atmosphere low temperature plasma to process the oxidation graphene realizing efficient reduction of the graphene oxide, thus effectively improving the purity of graphene. DESCRIPTION OF DRAWING(S) - The drawing shows an overall structure schematic diagram of the three-electrode coaxial DBD device with special-shaped structure for reducing graphene oxide. 1Nanosecond pulse power supply 2High frequency ac power supply 3Oscillograph 4High pressure probe 5Current coil 6Dielectric pipe 7First sealing fixing plug 8Air outlet 9First ground electrode 10First high voltage electrode 11Second high voltage electrode 12Third high voltage electrode 13Fourth high voltage electrode 14Fifth high voltage electrode 15Second ground electrode 16Glass tube 17Air inlet 18Second sealing fixing plug 19One-way valve 20Flowmeter 21High pressure cylinder