▎ 摘　　要

NOVELTY - Preparation of graphene/molybdenum diselenide composite material comprises mixing oxygen-deficient titanium dioxide/graphene, selenium powder hydrazine hydrate solution and sodium molybdate solution at selenium source to molybdenum source mol ratio of (1.5-2.5): 1 to obtain mixture, hydrothermally reacting at 180-200 degrees C for 20-30 hours to obtain precipitate product, and drying and annealing precipitate product. The oxygen-deficient titanium dioxide/graphene accounts for 20-38% of mass of graphene/molybdenum diselenide composite material. USE - The method is for preparing graphene/molybdenum diselenide composite material used for lubricating oil (claimed). ADVANTAGE - The composite material has good dispersibility, strong structure stability, and excellent conductive heat-conducting performance and anti-wear and pressure-resistant performance, and can improve antistatic and extreme pressure anti-wear performance of lubricating oil. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a lubricating oil comprising base oil, and additive comprising graphene/molybdenum diselenide composite material.