• 专利标题:   Preparation of non-precious-metal-particle-anchored graphene sheet nanocomposite for use in photocatalysis, involves hydrothermally reacting non-precious metal nitrate solution in ligand solution, mixing with e.g. urea, and calcining.
  • 专利号:   CN107715880-A
  • 发明人:   HE D, WANG J, LIN L, JIN C
  • 专利权人:   NAT ENG RES CENT NANOTECHNOLOGY
  • 国际专利分类:   B01J023/75, B01J023/755, B01J035/02
  • 专利详细信息:   CN107715880-A 23 Feb 2018 B01J-023/75 201820 Pages: 6 Chinese
  • 申请详细信息:   CN107715880-A CN10970554 18 Oct 2017
  • 优先权号:   CN10970554

▎ 摘  要

NOVELTY - Preparation of non-precious-metal-particle-anchored graphene sheet nanocomposite, involves dissolving 1-imidazole-4-carboxylic acid in acetonitrile solution to obtain ligand solution, dissolving a non-precious metal nitrate in absolute ethanol, dripping in ligand solution, hydrothermally reacting at 170-200 degrees C for 24-48 hours, washing, drying to obtain a solid powder of non-precious metal coordinated compound, mixing the obtained compound and urea, cyanamide, or cyanic acid in a mass ratio of 100:1-1:100, placing under protection of nitrogen, calcining, and cooling naturally. USE - Preparation of nanocomposite graphene sheet for use in photocatalysis (all claimed). ADVANTAGE - The method effectively anchors the metal nanoparticles in the graphene sheet structure, forming a higher Schottky barrier to facilitate quick migration of electrons between the interface, to be applicable in photocatalysis. DETAILED DESCRIPTION - Preparation of non-precious-metal-particle-anchored graphene sheet nanocomposite, involves dissolving 1-imidazole-4-carboxylic acid in acetonitrile solution to obtain a homogeneous ligand solution, dissolving a non-precious metal nitrate in absolute ethanol, dripping in ligand solution, fully dissolving nitrate precursor in ligand solution by stirring, sealing the mixed ligand solution in PTFE-lined hydrothermal reactor, hydrothermally reacting at 170-200 degrees C for 24-48 hours, washing, drying to obtain a solid powder of non-precious metal coordinated compound, mixing the obtained compound and urea, cyanamide, or cyanic acid in a mass ratio of 100:1-1:100, placing under protection of nitrogen, calcining at 600-1000 degrees C for 4 hours, and cooling naturally. The non-precious metal is cobalt, nickel, iron, copper or zinc.