Hydrothermal synthesis of three-dimensional grapheme and its adsorption property

Three-dimensional graphene (3D) has attracted increasing attention due to its excellent performance such as light weight, high porosity, large specific surface area and high mechanical strength. In this paper, we report a simple and controllable method for the preparation of 3D architectures of graphene by the hydrothermal synthesis at 180. There were no chemical crosslinking agents are needed during the synthesis process. The as-prepared 3D graphene were characterized by use of X-ray diffraction, scanning electronic microscope, video contact angle measuring instrument and Raman spectroscope. The results show that the 3D graphene architectures have low densities, high porosity, high mechanical properties and high efficient absorption, compared with other methods, this method has shown better stability and reproducibility. The prepared 3D graphene can be expected to be used in the fields of supercapacitors, hydrogen storage, catalysts and environmental protection etc. ©, 2014, Journal of Functional Materials. All right reserved.