• 专利标题:   System for three-in-one in situ exfoliation, reduction and deposition of graphene oxide and reduced graphene oxide comprises solution, negative feeding electrode and positive feeding electrode arranged in solution and bipolar electrode and another bipolar electrode arranged in solution.
  • 专利号:   US2021388513-A1, US11352703-B2
  • 发明人:   WANG C, ALLAGUI A, BABOUKANI A R, KHAKPOUR I
  • 专利权人:   WANG C, ALLAGUI A, BABOUKANI A R, KHAKPOUR I, UNIV FLORIDA
  • 国际专利分类:   C25B001/135, C25B011/036, C25B011/043, C25B011/046, C25B015/02, C25B009/17
  • 专利详细信息:   US2021388513-A1 16 Dec 2021 C25B-011/036 202215 English
  • 申请详细信息:   US2021388513-A1 US234114 19 Apr 2021
  • 优先权号:   US037197P, US234114

▎ 摘  要

NOVELTY - System for a three-in-one in situ exfoliation, reduction, and deposition of graphene oxide and reduced graphene oxide comprises a solution; a negative feeding electrode and a positive feeding electrode arranged in the solution; and a first bipolar electrode and a second bipolar electrode arranged in the solution, the first bipolar electrode and the second bipolar electrode being arranged between the negative feeding electrode and the positive feeding electrode, the first bipolar electrode being a first piece of graphite, and the second bipolar electrode being a second piece of graphite, the first bipolar electrode being arranged closer to the negative feeding electrode than is the second bipolar electrode, the second bipolar electrode being arranged closer to the positive feeding electrode than is the first bipolar electrode, and the first bipolar electrode comprising a first surface facing the negative feeding electrode. USE - As system for a three-in-one in situ exfoliation, reduction, and deposition of graphene oxide and reduced graphene oxide. ADVANTAGE - The system uses bipolar electrochemistry concepts to provide a single-step and controllable process for simultaneously exfoliating a graphite source and depositing both graphene oxide and reduced graphene oxide layers on conductive substrates and provides reliable, simple, cost-efficient, and eco-friendly methods for scale-up production of high-quality graphene-based materials, shows high stability for periodic and repeated constant current charging/discharging cycles, which is suitable for energy storage in supercapacitors and shows the capability to be used for AC filtering applications, as confirmed by frequency domain results. DETAILED DESCRIPTION - System for a three-in-one in situ exfoliation, reduction, and deposition of graphene oxide and reduced graphene oxide comprises a solution; a negative feeding electrode and a positive feeding electrode arranged in the solution; and a first bipolar electrode and a second bipolar electrode arranged in the solution, the first bipolar electrode and the second bipolar electrode being arranged between the negative feeding electrode and the positive feeding electrode, the first bipolar electrode being a first piece of graphite, and the second bipolar electrode being a second piece of graphite, the first bipolar electrode being arranged closer to the negative feeding electrode than is the second bipolar electrode, the second bipolar electrode being arranged closer to the positive feeding electrode than is the first bipolar electrode, the first bipolar electrode comprising a first surface facing the negative feeding electrode, the second bipolar electrode comprising a second surface facing the positive feeding electrode, and a distance between the first surface of the first bipolar electrode and the second surface of the second bipolar electrode being greater than both a distance between the first surface of the first bipolar electrode and the negative feeding electrode and a distance between the second surface of the second bipolar electrode and the positive feeding electrode. An INDEPENDENT CLAIM is also included for a method for simultaneously exfoliating a graphite source and depositing both graphene oxide and reduced graphene oxide layers on a conductive substrate.