▎ 摘　　要

NOVELTY - The process involves providing graphite oxide prepared by Hummers method. The graphite oxide is synthesized to produce exfoliated graphene (EG). The chemically functionalized EG in commercially available coolant without surfactant is dispersed. The synthesized EG is treated with concentrated hydrogen sulfuric acid and nitric acid to induce hydrophilicity. USE - Process for producing improved heat-exchange fluid from two-dimensional carbon nanomaterials (claimed). ADVANTAGE - The process for producing heat exchange fluid from two dimensional carbon nanomaterials can be dispersed in heat-exchange fluids/engine coolant with out any surfactant. The process covalently modifies the surface of the two dimensional carbon nanomaterials by using oxidizing acid mixture for dispersion in the coolant base fluid. The process improves the thermal conductivity and heat-transfer characteristics of heat-exchange fluids/engine coolant. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view of a specific heat capacity with different volume fractions and temperature.