• 专利标题:   Depositing graphene oxide sheets with co-deposited metals on inert substrates or semiconductor, involves preparing aqueous solution in distilled or deionized water in container, and then adding graphene oxide in aqueous solution to prepare.
  • 专利号:   BR102014025271-A2
  • 发明人:   FLACKER A, NASCIMENTO A H
  • 专利权人:   CTI CENT TECNOLOGIA DA INFORMACAO RENATO
  • 国际专利分类:   C01B031/02, C25D013/02
  • 专利详细信息:   BR102014025271-A2 17 May 2016 C25D-013/02 201665 Pages: 12 English
  • 申请详细信息:   BR102014025271-A2 BR10025271 09 Oct 2014
  • 优先权号:   BR10025271

▎ 摘  要

NOVELTY - Graphene oxide sheets deposition involves preparing aqueous solution (So) in distilled or deionized water in a container, and then adding graphene oxide in aqueous solution to prepare an aqueous mixture. The prepared aqueous mixture is acidified with highly sulfuric acid to prepare an acidified solution. The prepared acidified solution is applied on magnet plate coated with Teflon (RTM: a synthetic fluoropolymer of tetrafluoroethylene) inside the container. The deposited container is immersed in an acidic solution. USE - Method for depositing graphene oxide sheets with co-deposited metals on inert substrates or semiconductor. ADVANTAGE - The method facilitates deposition of graphene oxide sheets in a simple and cost-effective manner and provides electronic sensors with improved reliability and better performance. DETAILED DESCRIPTION - Graphene oxide sheets deposition involves preparing aqueous solution (So) in distilled or deionized water in a container, and then adding graphene oxide in aqueous solution to prepare an aqueous mixture. The prepared aqueous mixture is acidified with highly sulfuric acid to prepare an acidified solution. The prepared acidified solution is applied on magnet plate coated with Teflon (RTM: a synthetic fluoropolymer of tetrafluoroethylene) inside the container. The deposited container is immersed in an acidic solution. The magnetic plate is stirred during co-deposition of metal by using two metallic electrodes. The metal is selected from copper, gold, silver, platinum, nickel, aluminum or tin. The electrode is made of stainless steel 316-L (a), platinum, titanium or graphite (b). The silicon substrate is made of glass or polymer. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic representation of the graphene oxide sheets deposition method. Aqueous solution (So) Stainless steel (a) Graphite (b)