• 专利标题:   Preparing reduced graphene oxide-polyhydroquinone composite electrode useful for sensing and electrolyzing water to produce hydrogen, comprises e.g. adding metal working electrode and platinum electrode into plating solution and heating.
  • 专利号:   CN110699703-A
  • 发明人:   CUI D, ZHANG F, LU Y, ZHANG D, YANG J, JIAO J, WANG Y, GE M
  • 专利权人:   SHANGHAI NAT ENG RES CENT NANOTECHNOLOGY
  • 国际专利分类:   C25B001/04, C25B011/04, C25D009/02, C25D009/06
  • 专利详细信息:   CN110699703-A 17 Jan 2020 C25B-011/04 202011 Pages: 9 Chinese
  • 申请详细信息:   CN110699703-A CN11088475 08 Nov 2019
  • 优先权号:   CN11088475

▎ 摘  要

NOVELTY - Preparing reduced graphene oxide-polyhydroquinone composite electrode comprises (i) preparing aqueous solution containing 0-8 mg/ml graphene oxide, quinhydrone and sodium hydroxide as plating solution, the concentration of quinhydrone is 0.1-4 mg/ml, and the concentration of sodium hydroxide is 0.01-0.4 mol/l, (ii) adding metal working electrode and platinum electrode into plating solution, using the metal working electrode as the anode to pass in high-density direct current, the current density of the electrode surface is 4-50 mA/cm2, so that a large amount of oxygen bubbles are generated on the surface of the metal working electrode, and obtaining metal working electrode with a purple-black gel film deposited on the surface, (iii) rinsing the metal working electrode with ultrapure water and placing in a sealed polytetrafluoroethylene container for heating, and (iv) placing the electrode in dilute hydrochloric acid solution, ultrapure water and ethanol solution to wash. USE - The electrode is useful for sensing and electrolyzing water to produce hydrogen (claimed). ADVANTAGE - The electrode is a functional electrode and simple to prepare. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for reduced graphene oxide-polyhydroquinone composite electrode prepared by the above method.