• 专利标题:   Preparing titanium oxide-alumina-graphene ceramic electrode by mixing alumina, titanium oxide, zinc oxide and graphene solid powder, milling using binder, granulating, heat treating, sintering in vacuum furnace, fluorinating and drying.
  • 专利号:   CN110803743-A, CN110803743-B
  • 发明人:   DAI Y, DUAN C, WANG S, ZHU F, GAO H
  • 专利权人:   UNIV CHINA GEOSCIENCES BEIJING
  • 国际专利分类:   C02F001/461, C02F101/16, C02F101/38
  • 专利详细信息:   CN110803743-A 18 Feb 2020 C02F-001/461 202020 Pages: 8 Chinese
  • 申请详细信息:   CN110803743-A CN11120239 15 Nov 2019
  • 优先权号:   CN11120239

▎ 摘  要

NOVELTY - Method for preparing titanium oxide-alumina-graphene ceramic electrode, involves (i) mixing alumina, titanium oxide, zinc, zinc oxide and graphene solid powder to the material ratio to obtain a uniform mixture, (ii) milling the above mixture using a binder for 6 hours to prepare a ceramic powder, and granulating the ceramic powder to control the moisture content of the particles at 5 wt.% having particle size of 40-80 mesh, (iii) preparing the ceramic particles into a ceramic blank with a thickness of 5 mm in a mold under a pressure of 1000 kg/m2, (iv) heat treating the ceramic blank at 80 degrees C for 24 hours to remove moisture content and organic binders from the blank, (v) sintering the heat-treated ceramic blank in a vacuum furnace at 1500 degrees C for 12 hours, (vi) fluorinating the sintered ceramic plate obtained in step (v) in an aqueous 5% ammonium fluoride solution at a concentration of 5 wt.% for 24 hours, and (vii) drying the fluorinated ceramic plate at 65 degrees C. USE - Method for preparing titanium oxide-alumina-graphene ceramic electrode. ADVANTAGE - The method adopts oxygen defect construction technology, is suitable for large-scale industrial wastewater advanced treatment, has high electrical conductivity, excellent stability and large electrochemically active area.