Graphene oxide produced by electrochemical oxidation cutting of carbon based three-dimensional material end face and its manufacturing method

摘要

The present invention provides graphene oxide produced by electrochemical oxidation cutting of a carbon-based three-dimensional material end face and a method for producing the graphene oxide. In this method, one carbon-based three-dimensional material is used as one pole, the other carbon-based three-dimensional material or an inert material is used as the other pole, and each is connected to both poles of a DC power source, and at least one pole of a carbon-based three-dimensional material One end face of this is in contact with the liquid surface of the electrolyte solution as a work surface. The working section of the end surface as the working surface is in the range of −5 mm to 5 mm from the lower side to the upper side of the electrolyte solution. By controlling intermittently or continuously so that the end face is within the working section, the graphite sheet layer on the end face is electrochemically oxidatively expanded and dissociated and cut into graphene oxide, thereby obtaining an electrolyte solution containing graphene oxide. It is done. The method has higher oxidative expansion dissociation and cutting ability, and can obtain high quality graphene oxide with lower number of layers, more uniform particle size distribution, under the assumption of low energy consumption and no contamination . [Selection] Figure 1