▎ 摘　　要

NOVELTY - Producing graphene by high pressure reduction, comprises diluting graphite oxide under an inert atmosphere, and performing high pressure reduction treatment at high temperature of greater than or equal to 900 degrees C under high pressure of greater than or equal to 1 MPa to prepare diluted graphite. USE - The graphene is useful as an energy storage active material for storing hydrogen; in lithium ion battery, super capacitor or fuel cell, and nanoelectronic devices, high frequency circuits, photon sensors and electronic gene sequencing to reduce noise (claimed). ADVANTAGE - The method avoids the usage of a chemical reagent, ensures less environmental pollution, and is suitable for reduction of various graphene oxide powder based on the various methods.