Preparation of graphene by a low-temperature thermal reduction at atmosphere pressure.
It is still a challenge to prepare graphene from graphene oxide (GO) under a mild thermal reduction. Here we report that GO can even be reduced at a low temperature (below 150 degrees C) at atmospheric pressure in a mixture of N,N-dimethylacetamide (DMAc) and water (10 : 3, v/v) under the protection of nitrogen gas. FT-IR, XRD, XPS, Raman, and AFM studies confirmed the thermal reduction of GO and the formation of graphene. The as-prepared graphene can be fully dispersed in pure DMAc to form an organic suspension, and the suspension is stable for at least two months at room temperature.
Chen
Wufeng
W
Hefei National Laboratory for Physical Sciences at Microscale and CAS Key Laboratory of Soft Matter Chemistry, Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, P R China.
Yan
Lifeng
L
D000081:Acetamides / Q000737:chemistry; D001274:Atmospheric Pressure; D002244:Carbon / Q000737:chemistry*; D003080:Cold Temperature; D018625:Microscopy, Atomic Force; D010084:Oxidation-Reduction; D010087:Oxides / Q000737:chemistry; D017550:Spectroscopy, Fourier Transform Infrared; D014867:Water / Q000737:chemistry
D000081:Acetamides; D010087:Oxides; D014867:Water; D002244:Carbon; C013959:dimethylacetamide