• 专利标题:   Preparation of molybdenum selenide/graphene/carbon nanotube composite material used as e.g. electrode material for lithium ion battery, involves dispersing graphene oxide and acidified carbon nanotubes in water.
  • 专利号:   CN106025210-A
  • 发明人:   LIU T, GAO W, SHI Y, FAN W, LU H, ZUO L, HUANG Y
  • 专利权人:   UNIV FUDAN
  • 国际专利分类:   C01B031/02, C25B011/06, H01L031/0224, H01M004/36, H01M004/58, H01M004/583
  • 专利详细信息:   CN106025210-A 12 Oct 2016 H01M-004/36 201682 Pages: 8 Chinese
  • 申请详细信息:   CN106025210-A CN10392018 06 Jun 2016
  • 优先权号:   CN10392018

▎ 摘  要

NOVELTY - The preparation method of molybdenum selenide/graphene/carbon nanotube composite material involves (i) dispersing graphene oxide and acidified carbon nanotubes in water, mixing with aqueous dispersion, stirring uniformly, (ii) quenching graphene/carbon nanotube mixed dispersion with liquid nitrogen, and freeze-drying to obtain a graphene oxide/acidified carbon nanotube aerogel, (iii) carbonizing to obtain graphene/carbon nanotube aerogel, (iv) dissolving selenium powder in hydrazine hydrate, heating, stirring, and dispersing uniformly to obtain a selenium powder dispersion liquid. USE - Preparation of molybdenum selenide/graphene/carbon nanotube composite material used as high-performance electrocatalytic material, and electrode material for lithium ion battery and solar cell (all claimed). ADVANTAGE - The method enables the preparation of molybdenum selenide/graphene/carbon nanotube composite material having excellent chemical stability and mechanical property, and high specific surface area, and conductivity. DETAILED DESCRIPTION - The preparation method of molybdenum selenide/graphene/carbon nanotube composite material involves (i) dispersing graphene oxide and acidified carbon nanotubes in water, mixing with aqueous dispersion, stirring uniformly, (ii) quenching the graphene/carbon nanotube mixed dispersion with liquid nitrogen, and freeze-drying to obtain a graphene oxide/acidified carbon nanotube aerogel, (iii) carbonizing the graphene oxide/carbon nanotube aerogel at high temperature in an inert atmosphere to obtain graphene/carbon nanotube aerogel, (iv) dissolving selenium powder in hydrazine hydrate, heating, stirring, and dispersing uniformly to obtain a selenium powder dispersion liquid, (v) adding sodium molybdate to N,N-dimethylformamide, adding selenium powder dispersion to obtain mixture (a), (vi) immersing the graphene/carbon nanotube aerogel in mixture (a), solvothermally reacting to obtain molybdenum selenide/graphene/carbon nanotube composite material, and (vii) heat-treating in high purity nitrogen atmosphere.