Development of mass production process of graphene and fabrication of high strenght nanocomposites

2017 Fiscal Year Final Research Report

• Project/Area Number: 15H05504
• Research Category: Grant-in-Aid for Young Scientists (A)
• Allocation Type: Single-year Grants
• Research Field: Materials/Mechanics of materials
• Research Institution: Tokyo Institute of Technology
• Principal Investigator: Arao Yoshihiko 東京工業大学, 物質理工学院, 助教 (40449335)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: グラフェン / 剥離 / ナノコンポジット

Outline of Final Research Achievements

Liquid phase exfoliation that enables to produce few-layer graphene from graphite has been developed in order to improve the quality and yield of graphene. It was demonstrated that the pressure homogenizer produced few-layer graphene more than ten times compared to conventional sonication method. We have found the optimal solvent system. The cosolvent of organic solvent and alkali water was the most proper solvent in liquid phase exfoliation due to its enhanced steric and electrical repulsion forces. In addition, we can successfully modify the structure of graphite. The modified graphite can be dissolved in water and alcohol those of which are believed as incompatible solvent against graphite.

Free Research Field

材料力学