A method of making a graphene-containing material comprising the steps of: electrolytically reducing a transition metal oxide to a transition metal in an electrolytic cell using a molten salt electrolyte and a carbon anode; followed by extracting a dry graphene material from the electrolytic cell. Also provided is a graphene-containing material obtainable by the method of the invention.

A method of making a graphene-containing material comprising the steps of: electrolytically reducing a transition metal oxide to a transition metal in an electrolytic cell using a molten salt electrolyte and a carbon anode; followed by extracting a dry graphene material from the electrolytic cell. Also provided is a graphene-containing material obtainable by the method of the invention.

A method for the manufacture of pristine graphite from Kish graphite including three different steps A, B and C; the pristine obtained with among others a high amount of carbon atoms, i.e. a pristine graphene having a high purity; and the use of this pristine graphene.

A method for the manufacture of pristine graphite from Kish graphite including three different steps A, B and C; the pristine obtained with among others a high amount of carbon atoms, i.e. a pristine graphene having a high purity; and the use of this pristine graphene.

A method for the manufacture of reduced graphene oxide from Kish graphite including the pretreatment of kish graphite, the oxidation of pre-treated kish graphite into graphene oxide and the reduction of graphene oxide into reduced graphene oxide, the reduced graphene oxide and the use of the graphene oxide.

A method for the manufacture of reduced graphene oxide from Kish graphite including the pretreatment of kish graphite, the oxidation of pre-treated kish graphite into graphene oxide and the reduction of graphene oxide into reduced graphene oxide, the reduced graphene oxide and the use of the graphene oxide.

An electrochemically exfoliated graphene is provided, using a two step synthetic approach that involves an initial step of electrochemically intercalating hydroxides within a graphite matrix.

The present disclosure relates to the technical field of nano materials and aims to provide to a method for preparing nano-graphene oxide by electrochemically exfoliating a carbon fiber material. The method includes the following steps: building an electrochemical reaction system by using a raw material with a carbon fiber as a basic structural unit as an anode, a metal or graphitic carbon material as a cathode, and a phosphate buffer solution with a neutral pH as an electrolyte; in an electrolysis process, gradually exfoliating a carbon fiber in the anode raw material and dispersing the carbon fiber in the electrolyte solution to generate graphene oxide; centrifuging to separate the reacted electrolyte solution, taking upper dispersion liquid, and washing away residual anions and cations; and performing ultrasonic treatment to obtain nano-graphene oxide dispersed in water and free of impurities.

The present disclosure relates to the technical field of nano materials and aims to provide to a method for preparing nano-graphene oxide by electrochemically exfoliating a carbon fiber material. The method includes the following steps: building an electrochemical reaction system by using a raw material with a carbon fiber as a basic structural unit as an anode, a metal or graphitic carbon material as a cathode, and a phosphate buffer solution with a neutral pH as an electrolyte; in an electrolysis process, gradually exfoliating a carbon fiber in the anode raw material and dispersing the carbon fiber in the electrolyte solution to generate graphene oxide; centrifuging to separate the reacted electrolyte solution, taking upper dispersion liquid, and washing away residual anions and cations; and performing ultrasonic treatment to obtain nano-graphene oxide dispersed in water and free of impurities.

A method for integrally forming a graphene film (GF) of a high specific surface area (SSA) by ultrafast ultraviolet (UV) laser processing, includes: selecting a carbon precursor material, where the carbon precursor material is one selected from the group consisting of a biomass/hydrogel composite and a heavy hydrocarbon compound; adding an activator solution to an inside of the carbon precursor material to obtain a composite with an activator uniformly loaded, and spreading the composite on a flexible substrate to form a carbon precursor material layer; heating and drying the carbon precursor material layer; in-situ processing with an ultrafast UV laser to obtain an activated GF of a high SSA; and cleaning and drying the activated GF. With the method of the present disclosure, a microporous activated GF of a high SSA can be directly processed in-situ on a flexible substrate.