Fabrication of carbons dendritic hierarchical structure via easy copper substrateinduced solvothermal process at low temperature

Three-dimensional hierarchical dendritic carbon structures with high densities of secondary carbon nanosheets have been fabricated using a solvothermal growth via reacting metal Na with tetrachloromethane in 200°C on Cu ribbon. Field-emission scanning electron microscopy and transmission electron microscopy images of the as-prepared sample shows that 3D hierarchical dendritic carbon structures are composed of carbon nanosheets with the thickness of about 20°nm. The powder X-ray diffraction and Raman spectra reveal the low graphitisation degree of the as-prepared sample. A possible formation mechanism has been proposed.