• 专利标题:   Preparation of graphene-based composite catalyst used as electrocatalyst, involves soaking graphite oxide particles in polar solvent, separating, dispersing obtained precipitate in nonpolar solvent, slowly adding metal salt powder, mixing, separating, drying obtained solid powder and heat-treating.
  • 专利号:   CN115337923-A
  • 发明人:   HE H, LIU Y, GUO W, ZHANG S, HE Z, GAN B
  • 专利权人:   HUNAN QINGHE NEW MATERIAL CO LTD
  • 国际专利分类:   B01J023/34, B01J023/42, B01J037/02, B01J037/08
  • 专利详细信息:   CN115337923-A 15 Nov 2022 B01J-023/34 202304 Chinese
  • 申请详细信息:   CN115337923-A CN10837638 15 Jul 2022
  • 优先权号:   CN10837638

▎ 摘  要

NOVELTY - Preparation of graphene-based composite catalyst involves (s1) soaking graphite oxide particles in polar solvent and solid-liquid separating to obtain precipitate, (s2) dispersing the precipitate in nonpolar solvent, slowly adding metal salt powder, and fully mixing, (s3) solid-liquid separating, and drying the obtained solid powder at a certain temperature, and (s4) heat-treating the obtained dried solid powder at 300-1000℃ for 0.1-10 hours under protective atmosphere. USE - Preparation of graphene-based composite catalyst. ADVANTAGE - The method provides catalyst with high specific surface area, excellent conductivity, small particle size of the loaded component, uniform particle size, excellent catalytic activity, simple preparation process suitable for mass production, and less emission.