The Prospective 2D Graphene Nanosheets: Preparation, Functionalization and Applications

Abstract

Graphene, as intermediate phase in fullerene and carbon nanotube, has aroused much interest due to its exceptional electronic, mechanical, and thermal properties. With excellent electrical conductivity as high as 6000 S/cm, which is independent on chirality, graphene is a promising material for high-performance nanoelectronics, transparent conductor, polymer composites, etc. On account of its Young’s modulus of 1 TPa and ultimate strength of 130 GPa, isolated graphene sheet is considered as the strongest material ever measured. Comparable with single-walled carbon nanotube bundle, graphene has a thermal conductivity of 5000 W/(m·K), which benefits for improving thermal properties of polymer matrix. Furthermore, it exhibits a very high surface area, up to 2630 m2/g. All of the above advantages bring a wonderful future for this nanometer-thick two-dimensional carbon material. This review article aims to present an overview of the significant advancement in graphene research. Preparation and properties of graphene materials will be discussed. In addition, the feasibility and potential applications in some fields, such as sensors, electronics and composite materials, will be also reviewed.

Keywords: Graphene; Graphite oxide; Functionalization; Sensors; Transparent conductive films; Nanocomposites

 Citation: Zhi Yang, Rungang Gao, Nantao Hu, Jing Chai, Yingwu Cheng, Liying Zhang, Hao Wei, Eric Siu-Wai Kong and Yafei Zhang, “The Prospective 2D Graphene Nanosheets: Preparation, Functionalization and Applications”, Nano-Micro Lett. 3 (4), 272-280 (2011). doi:10.3786/nml.v3i4.p272-280