Adsorption and desorption characteristics of 3-dimensional networks of fused graphene |
| |
| Authors: | Mohammad Choucair Nicholas MK Tse Matthew R Hill John A Stride |
| |
| Institution: | 1. School of Chemistry, University of New South Wales, Sydney 2052, Australia;2. CSIRO Division of Materials Science and Engineering, Private Bag 33, Clayton South MDC, Victoria 3169, Australia;3. Bragg Institute, Australian Nuclear Science and Technology Organisation, PMB 1, Menai, NSW 2234, Australia |
| |
| Abstract: | Here we explore the exceptional structural characteristics of a set of graphene-related materials prepared by a wet chemical approach. We present a comprehensive study of the effects of morphology, sonication, temperature, probe species, and stacking behaviour on the measurement of graphene surface area. Nitrogen gas was used in the solid state gas adsorption measurements and methylene blue dye for adsorption measurements on aqueous dispersions of graphene. The surface area values obtained are among the highest reported for synthetic graphenes: 1700 m2 g? 1 in aqueous dispersions and 612 m2 g? 1 in the solid state. Microscopy revealed the graphene used in the study was present in large part as free sheets and electron diffraction confirmed the successful synthesis of high quality graphene with a regular C–C bond length of 1.41 ± 0.02 Å. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
