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Tohoku Univ. Technology：Production method of carbon material：T13-160

Large amount production of carbon material at relatively low temperature

CVD and electrochemical method are known to product carbon material such as carbon nanotubes or graphenes. In the CVD process, carbon material is produced at high temperature in order to decompose the precursor molecule that provides the carbon. The hydrothermal electrochemical method can produce carbon material at lower temperature than CVD method. However, the amount of carbon material produced by this method is small.　 　This invention is to enable to produce large amount of carbon material at relatively low temperature. In this production method, carbon material is produced from aqueous solution in which the temperature is 100℃ or higher, the pressure is greater than 1 atm, and soluble carbonaceous precursors by a hydrothermal electrochemical method. The produced carbon material can be composed of at least one of diamond like carbon, carbon nanotube, graphene, diamond. This invention is to enable to produce large amount of carbon material at relatively low temperature.