▎ 摘　　要

NOVELTY - A graphite paper is prepared by depositing nickel catalyst by magnetron sputtering, annealing at 750-950 degrees C in argon-hydrogen atmosphere, charging acetylene or methane at flow rate of 20-70 cm3/minute, and performing chemical vapor deposition of graphene film at 500-1000 degrees C for 0.5-5 hours; soaking in 0.05-0.6 mol/L aqueous iron compound solution for 2 hours, and drying at 120 degrees C; and charging acetylene or methane at flow rate of 20-80 cm3/minute, growing carbon nanotube by chemical vapor deposition at 500-650 degrees C for 0.5-2 hours, and pressing under pressure of 1000-2000 N/cm2. USE - Method for preparing graphite paper (claimed). ADVANTAGE - The graphite paper has high thermal conductivity. DETAILED DESCRIPTION - A graphite paper is prepared by: (A) depositing nickel catalyst by magnetron sputtering at air pressure of 0.3-1 Pa, argon gas flow rate of 5-30 cm3/minute and transmission power of 80-300 W, annealing at 750-950 degrees C in argon-hydrogen atmosphere, charging acetylene or methane at flow rate of 20-70 cm3/minute, and performing chemical vapor deposition of graphene film at 500-1000 degrees C for 0.5-5 hours under pressure of 5-20 kPa and hydrogen flow rate of 100-200 cm3/minute; (B) soaking in 0.05-0.6 mol/L aqueous solution of ferric nitrate, ferric chloride or ferric acetate for 2 hours, and drying at 120 degrees C; and (C) charging acetylene or methane at flow rate of 20-80 cm3/minute, growing carbon nanotube by chemical vapor deposition at 500-650 degrees C for 0.5-2 hours under pressure of 5-25 kPa with hydrogen flow rate of 100-250 cm3/minute, and pressing under pressure of 1000-2000 N/cm2.