▎ 摘　　要

NOVELTY - Preparation of low-defect two-dimensional graphene/metal oxide nanocomposite lubricating material comprises high-degree graphite oxidation treatment to obtain fully oxidized graphite, performing ball milling mixing reaction on the graphite oxide and soluble metal salt to obtain graphene oxide with metal ions fully attached to the surface and the layers, fully hydrolyzing and directionally polymerizing the reacted solution to convert metal ions attached to the graphene into nano hydroxide, heating the reacted black slurry to uniformly load nano metal oxide on the surface and between layers of the graphene, and performing ball milling and crushing treatment on the graphene/metal oxide nanocomposite lubricating material. USE - The method is for preparation of low-defect two-dimensional graphene/metal oxide nanocomposite lubricating material (claimed). ADVANTAGE - The method has simple steps and good economical efficiency, is convenient to operate and green and environment-friendly, can be used for mass production, and can quickly prepare low-defect graphene/metal oxide nanocomposite lubricating material with excellent performance. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for low-defect two-dimensional graphene/metal oxide nanocomposite lubricating material.