• 专利标题:   Preparation of reduced graphene oxide film used in microelectronics device, by suspending graphite oxide in water, filtering to obtain graphene oxide film, and performing high temperature thermal reduction or hydroiodic acid reduction.
  • 专利号:   CN104030275-A, CN104030275-B
  • 发明人:   ZENG X, JIN M, ZHANG R, WANG Z, LIU K, SHAO X, JIN S
  • 专利权人:   SHANGHAI INST TECHNOLOGY
  • 国际专利分类:   C01B031/04
  • 专利详细信息:   CN104030275-A 10 Sep 2014 C01B-031/04 201480 Pages: 9 Chinese
  • 申请详细信息:   CN104030275-A CN10235200 30 May 2014
  • 优先权号:   CN10235200

▎ 摘  要

NOVELTY - Reduced graphene oxide film is prepared by suspending graphite oxide to deionized water under ultrasonic condition, performing low speed centrifugation, taking the supernatant, drying, and grinding to obtain graphene oxide; adding the graphene oxide to a solvent and dispersing under ultrasonic condition for 0.5-1.5 hours; subjecting dispersion liquid to micropore filter film vacuum filtration, and drying obtained filter cake to obtain graphene oxide film; and performing high temperature thermal reduction or hydroiodic acid (HI) reduction of graphene oxide film. USE - Method of preparing reduced graphene oxide film (claimed) used in microelectronics device. ADVANTAGE - The method is simple and can obtain reduced graphene oxide thin film having high thermal conductivity. The film is not prone to breakage and has large surface area. DETAILED DESCRIPTION - Preparation of reduced graphene oxide film comprises: (A) adding graphite oxide to deionized water and suspending under ultrasonic condition for 10 minutes to 1 hour, performing low speed centrifugation at 2000-3200 revolutions/minute for 5-14 minutes, taking the supernatant, drying, and grinding to obtain graphene oxide; (B) adding the graphene oxide to a solvent and dispersing under ultrasonic condition for 0.5-1.5 hours, and controlling concentration of graphene oxide dispersion liquid to 5 mg/mL; (C) subjecting dispersion liquid to micropore filter film vacuum filtration, and drying obtained filter cake to obtain graphene oxide film; and (D) performing high temperature thermal reduction or hydroiodic acid (HI) reduction of graphene oxide film.