• 专利标题:   Preparation method of graphite oxide and/or graphene used as nanomaterial in field of e.g. optoelectronics, energy, chemical material involves using graphite electrode as cathode of plasma electrolytic apparatus.
  • 专利号:   US2014216944-A1, TW201431782-A, US9096938-B2, TW488804-B1
  • 发明人:   WEI K, DANG V T, WEI K H
  • 专利权人:   UNIV NAT CHAO TUNG, UNIV NAT CHAO TUNG
  • 国际专利分类:   C25B001/00, C01B031/04, C25D011/00
  • 专利详细信息:   US2014216944-A1 07 Aug 2014 C25B-001/00 201454 Pages: 14 English
  • 申请详细信息:   US2014216944-A1 US960028 06 Aug 2013
  • 优先权号:   TW104356

▎ 摘  要

NOVELTY - The preparation method involves providing a plasma electrolytic apparatus, in which a basic electrolytic solution (3) is provided and a graphite electrode is configured as a cathode (1) of the plasma electrolytic apparatus. A cathodic current is applied so as to initiate a plasma electrolytic process at the surface of graphite electrode that have been in touch with the electrolyte to obtain graphite oxide and/or graphene. The anode (2) of the plasma electrolytic apparatus is not made of aluminum, magnesium, or titanium. USE - Preparation method of graphite oxide and/or graphene used as nanomaterial in field of e.g. optoelectronics, energy, chemical material. ADVANTAGE - Implements a plasma electrolytic process and ultrasonic oscillations to produce graphite oxide in a relatively low temperature, pressure and within a very short time, and does not require concentrated strong acids and oxidizing agents. Achieves plasma electrolytic process that is an effective method for graphite oxide production by the exothermal effect by vapor plasma envelope. The graphite electrodes can be used without any prior purification, to enable use of different kinds of materials such as recycled graphite electrodes, to achieve reduced cost, easy, efficient and environment-friendly preparation. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic diagram of the plasma electrolytic apparatus. Cathode (1) Anode (2) Electrolytic solution (3) Thermometer (4) Ultrasonic vibrator (5)