• 专利标题:   Synthesizing trisulfide dibismuth-oxidation graphene composite thermoelectric material, comprises e.g. dissolving bismuth trioxide in water bath, dissolving chabazite under magnetic stirring, and introducing graphene into mixed solution.
  • 专利号:   CN115286388-A
  • 发明人:   WANG Z, YAN Y, OUYANG T, LI X, BAI Y, TAN H
  • 专利权人:   UNIV KUNMING SCI TECHNOLOGY
  • 国际专利分类:   C04B035/547, C04B035/622, C04B035/63, H01L035/14, H01L035/18, H01L035/34
  • 专利详细信息:   CN115286388-A 04 Nov 2022 C04B-035/547 202299 Chinese
  • 申请详细信息:   CN115286388-A CN11039712 29 Aug 2022
  • 优先权号:   CN11039712

▎ 摘  要

NOVELTY - Synthesis of trisulfide dibismuth-oxidation graphene composite thermoelectric material comprises (i) dissolving boron trioxide (Bi(NO 3) in water bath under the condition of magnetic stirring in a water bath, dissolving hydrazinium thiocyanate (CH4N2O) under the magnetic stirring condition, (iii) introducing graphite oxide(325 meshes) into the mixed solution, where the adding amount is divided into 0.25 wt.%, 0.5 wt., 0.75 wt%, and 1 wt.% and (iv) slowly dropping the methanethiol solution in the step (2) to the mixed liquid, stirring uniformly, (v) dropping carbamide solution obtained in step (3) into a mixed solution of step (5), stirring uniformly; (vi) introducig mixed solution into the reaction kettle to react; (vii) centrifuging the reaction solution, cleaning and drying. USE - The method is useful for simply synthesizing bismuth trisulfide-oxidation-graphene composite thermoelectric material. ADVANTAGE - The method provides a non-toxic bismuth trisulfide-oxidation-graphene oxide composite thermoelectric material with low price, low toxicity, low characteristics, low thermal conductivity, and better thermo-electric performance. The method combines the simple hydrothermal synthesis technology and tubular sintering technology. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic view showing the crystal structure of the Bi2S3.