▎ 摘　　要

NOVELTY - Method for storing methane gas involves controlling adsorbing and desorbing methane by graphene oxide under the action of high-voltage direct-current electric field, and improving storage performance and release performance of the graphene oxide to methane. The output voltage of the high-voltage direct current is 1-5 kV. USE - Method for storing methane gas used for adsorption of energy gas such as compressed natural gas, liquefied natural gas, and adsorption natural gas. ADVANTAGE - The method is capable of efficiently storing methane gas with high-efficiency release of methane gas, and improves the storage performance and release performance of the methane by graphene oxide.