▎ 摘　　要

NOVELTY - A graphene-supported nano-nickel thermoelectric thin-film is obtained by dispersing freeze-dried surface-treated graphite oxide in e.g. and ethylene glycol, mixing with dispersion (B) containing nickel chloride-ethylene glycol solution, heating, centrifuging, washing, drying, mixing resultant product with e.g. aniline monomer, dripping mixture comprising ammonium persulfate dissolved in distilled water, filtering, washing, drying, obtaining a wave-absorbing material, adding resultant to water, obtaining electrolyte solution, and depositing on processed copper substrate. USE - Graphene-supported nano-nickel thermoelectric thin-film (claimed). ADVANTAGE - The graphene-supported nano-nickel thermoelectric thin-film having excellent conductivity. DETAILED DESCRIPTION - A graphene-supported nano-nickel thermoelectric thin-film is obtained by mixing graphite powder, potassium persulfate and phosphorus pentoxide with concentrated sulfuric acid, obtaining a mixture having pH of 1.5, stirring resultant at 60 degrees C for 1-2 hours, heating to 80 degrees C for 2-4 hours at temperature increasing rate of 5 degrees C/minute and 87 degrees C for 1-2 hours at temperature increasing rate of 2 degrees C/minute, diluting resultant with distilled water, adjusting pH of resultant to 3.6, adding distilled water, filtering, adjusting pH of resultant to 6-7, drying at room temperature, adding concentrated nitric acid for 45-60 minutes, adjusting pH value to 2-4, stirring, adding potassium permanganate, stirring for 30 minutes, cooling to -12 degrees C, stirring for 30 minutes, obtaining pre-oxidized graphite mixture, heating resultant at 40 degrees C for 3 hours, adding distilled water, reacting for 2.5 hours, adding hydrogen peroxide, heating for 10-60 minutes, centrifuging at 9500 rpm for 10 minutes, dialyzing for 7-8 days, obtaining oxidized graphite, adding N-hydroxysuccinimide, dimethyl sulfoxide and surface treatment agent, ultrasonically processing at 35 degrees C for 2 hours, filtering, washing, drying, obtaining surface-treated graphite oxide, freeze-drying at -10 to 30 degrees C, dispersing resultant in 1-10 g polyethylene oxide-polypropylene oxide-polyethylene oxide triblock copolymer and 500 ml ethylene glycol, obtaining dispersion (A), mixing 20-40 ml nickel chloride-ethylene glycol solution, 6-25 g polyvinylpyrrolidone and 10-50 g ammonium acetate, dissolving resultant product in 500-1000 ml ethylene glycol, obtaining dispersion (B), mixing dispersion (A) and dispersion (B), stirring, adjusting pH of resultant to 9-11 using aqueous ammonia, adding resultant to a reactor, sealing, heat-preserving at 130 degrees C for 2 hours, heating to 150 degrees C at heating rate of 2-4 degrees C/minute, heat-preserving for 4 hours, heating to 200 degrees C at heating rate of 3-6 degrees C/minute, heat-insulating for 3 hours, cooling to 180 degrees C for 2 hours at cooling rate of 5-7 degrees C/minute, heating at 200 degrees C for 7 hours at heating rate of 3-6 degrees C/minute, cooling to room temperature, centrifuging at 8000-10000 rpm for 10 minutes, washing using ethanol and deionized water 3 times, drying in vacuum at 50-70 degrees C for 24 hours, mixing 5 g resultant product with 5-10 g aniline monomer and dodecylbenzene sulfonic acid solution, ultrasonically dispersing for 65 minutes, dripping mixture comprising 3 g ammonium persulfate dissolved in 80-120 ml distilled water, reacting for 15 hours, filtering, washing using distilled water and ethanol, vacuum-drying at 50-70 degrees C for 24-36 hours, obtaining a wave-absorbing material, adding resultant to water, stirring for 10-15 minutes, ultrasonically processing at 30 Hz for 30-50 minutes, leaving still, obtaining electrolyte solution, washing a copper substrate using acetone, deionized water and methanol, respectively, ultrasonically cleaning for 5-10 minutes, and vacuum-drying at 90-120 degrees C for 10-30 minutes, placing in a container as negative electrode, placing resultant in electrophoretic device provided with iron film as positive electrode and depositing at 30-120 V for 30-90 minutes. The mass ratio of graphite powder, potassium persulfate, phosphorus pentoxide and concentrated sulfuric acid is 1-3:1-2:1-2:5. The mass ratio of dried mixture and concentrated nitric acid is 1-4:50-100. The mass ratio of dried mixture and potassium permanganate is 1-2:10-15.