▎ 摘　　要

NOVELTY - Nanometer graphene doped tin oxide antimony dispersion preparation involves adding tin chloride, tin nitrate and antimony chloride in a molar ratio of 90:20, and then adding absolute alcohol and nitric acid with stirring continuously to prepare a solution. The ethylenediaminetetraacetic acid and citric acid are added in the prepared solution in a molar ratio of 1-2:1:1. The resulting solution is heated at 60-70 degrees C for evaporating excess water and ethanol to form viscous sol. USE - Method for preparing nanometer graphene doped tin oxide antimony dispersion (claimed) used for producing high thermal conductivity thermal insulation coatings. ADVANTAGE - The method prepares the nanometer graphene doped tin oxide antimony dispersion in a simple and cost-effective manner with high dispersion and high stability at the microscopic scale. DETAILED DESCRIPTION - Nanometer graphene doped tin oxide antimony dispersion preparation involves adding tin chloride, tin nitrate and antimony chloride in a molar ratio of 90:20, and then adding absolute alcohol and nitric acid with stirring continuously to prepare a solution. The ethylenediaminetetraacetic acid and citric acid are added in the prepared solution in a molar ratio of 1-2:1:1. The resulting solution is heated at 60-70 degrees C for evaporating excess water and ethanol to form viscous sol. The formed viscous sol is fully stirred and then coated on a special metal plate with a thickness of 3 mm or less, and then the metal plate is vacuum-dried at 100 degrees C. The coated viscous sol is removed from the metal plate and then placed in a combustion furnace at 600-700 degrees C to ignite for obtaining fluffy light blue powder. The obtained fluffy light blue powder and nano-graphene are dispersed in N-methyl-2-pyrrolidone in a ball mill to prepare the nanometer graphene doped tin oxide antimony dispersion. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic transmission electron microscopic image of the nanometer graphene doped tin oxide antimony dispersion.