▎ 摘　　要

NOVELTY - Preparing graphene-lead compound nanocomposite material comprises (S1) highly oxidizing graphite to obtain graphite oxide, (S2) mixing graphite oxide with soluble lead salt, and obtaining the graphene oxide that fully attaches lead ion on the surface and interlayer, (S3) fully hydrolyzing the graphene oxide fully attached with lead ions on the surface and the interlayer and performing directional polymerization treatment, so that the attached lead ions are converted into nano-hydroxides, (S4) heat-treating the product obtained in the step (S3), so that the graphene surface and the interlayer are evenly loaded with nano-lead oxide to obtain a black solid, and (S5) washing and drying the black solid obtained in step (S4), and obtaining the graphene-lead compound nanocomposite. USE - The method is useful for preparing graphene-lead compound nanocomposite material. ADVANTAGE - The nanocomposite material: has excellent friction stability and lubricating effect; and can increase the use temperature range. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for graphene-lead compound nanocomposite material prepared by the above preparation method.