• 专利标题:   Preparing iron-doped graphene using waste iron phosphate lithium useful for lithium-cobalt battery's catalytic anode, comprises pre-processing waste ferric phosphate lithium, mixing and heating ferric phosphate lithium powder, calcining ferric hydroxide precipitate, and iron elementary substance.
  • 专利号:   CN116073012-A
  • 发明人:   DAI Q, DENG Q, YI J, YANG Y
  • 专利权人:   UNIV NANJING SCI TECHNOLOGY
  • 国际专利分类:   H01M010/54
  • 专利详细信息:   CN116073012-A 05 May 2023 H01M-010/54 202348 Chinese
  • 申请详细信息:   CN116073012-A CN10006679 04 Jan 2023
  • 优先权号:   CN10006679

▎ 摘  要

NOVELTY - Preparing iron-doped graphene using waste iron phosphate lithium comprises (i) pre-processing the waste ferric phosphate lithium to obtain lithium phosphate powder and graphite, (ii) mixing and heating the ferric phosphate lithium powder with the dilute sulfuric acid and hydrogen peroxide to obtain the precursor solution containing the lithium and iron, (iii) adjusting the pH value of the precursor solution containing lithium and iron to obtain the iron hydroxide precipitate, (iv) calcining the ferric hydroxide precipitate and the partial graphite, (v) using the Hummers oxidization method to prepare the part of graphite to prepare the graphite oxide, and (vi) calcining the iron elementary substance and graphite oxide to obtain iron-doped catalyst graphene. USE - The iron-doped graphene is useful for lithium-cobalt battery's catalytic anode (claimed). ADVANTAGE - The iron-doped graphene process and operation is simple, the chemical catalyst with high added value can be obtained, and the high economic benefit. DESCRIPTION OF DRAWING(S) - The drawing shows a flow chart of preparing iron-doped graphene using waste iron phosphate lithium for lithium-cobalt battery's catalytic anode(Drawing includes non-English language text).