A method for producing a vitreous carbon material which can serve as a carbon material for a power storage device. In the method, a polymer material, having six-membered ring structures in its basic carbon skeleton and having a nitrogen atom, is heated at a temperature of 1000° C. to 2100° C. under an inert gas environment, and then, the polymer material is pulverized, to thereby control graphitization and crystal growth of the carbon material, thus producing a vitreous carbon material which serves as a carbon material for a power storage device.

The invention relates to a method for producing a pre-treatment coating composition for a metal substrate, the method comprising the steps of: i. mining graphite ore from a graphite ore body; ii. subjecting the graphite ore to an electrolytic treatment to obtain an expanded graphitic material; iii. subjecting the expanded graphitic material to an exfoliation treatment to obtain single-layer graphene and few-layer graphene, and iv. functionalising the graphene with a coupling agent for coupling graphene to the metal substrate.

The invention relates to a method for producing a pre-treatment coating composition for a metal substrate, the method comprising the steps of: i. mining graphite ore from a graphite ore body; ii. subjecting the graphite ore to an electrolytic treatment to obtain an expanded graphitic material; iii. subjecting the expanded graphitic material to an exfoliation treatment to obtain single-layer graphene and few-layer graphene, and iv. functionalising the graphene with a coupling agent for coupling graphene to the metal substrate.

A graphene-reinforced polymer matrix composite comprising an essentially uniform distribution in a thermoplastic polymer of about 10% to about 50% of total composite weight of particles selected from graphite microp articles, single-layer graphene nanoparticles, multilayer graphene nanoparticles, and combinations thereof, where at least 50 wt % of the particles consist of single- and/or multi-layer graphene nanoparticles less than 50 nanometers thick along a c-axis direction. The graphene-reinforced polymer matrix is prepared by a method comprising (a) distributing graphite microparticles into a molten thermoplastic polymer phase comprising one or more matrix polymers; and (b) applying a succession of shear strain events to the molten polymer phase so that the matrix polymers exfoliate the graphite successively with each event until at least 50% of the graphite is exfoliated to form a distribution in the molten polymer phase of single- and multi-layer graphene nanoparticles less than 50 nanometers thick along a c-axis direction.

A graphene structure includes one or more graphene layers. The graphene layers allow for microwave squeezing with gains up to 24 dB over a wide bandwidth.

A graphene structure includes one or more graphene layers. The graphene layers allow for microwave squeezing with gains up to 24 dB over a wide bandwidth.

A graphite material has a flexible part and can be utilized as a heat-conveying material in a narrow space. The graphite material, includes: at least one heat-conveying part; and a flexible part. A method for producing a graphite material, includes: (i) subjecting at least one film serving as a material to a heat treatment to obtain at least one carbonaceous film; (ii) providing a monolayer or multilayer structure including the at least one carbonaceous film; and (iii) applying heat and pressure to at least one part of the monolayer or multilayer structure in an inert atmosphere.

According to an embodiment of the present invention, a method for preparing a graphite-titanium oxide composite comprises (S1) a surface-modifying graphite with benzyl alcohol or a cellulose-based material using a sol-gel method, (S2) distributing the surface-modified graphite in a solvent, adding a titanium precursor to the solvent, and mixing the titanium precursor with the surface-modified graphite to obtain a graphite-titanium mixture, and (S3) thermally treating the graphite-titanium mixture to grow a titanium oxide on a surface of the graphite.

A thermal interface material under a high vacuum condition includes a graphite sheet having a thickness of from 9.6 μm to 50 nm and a thermal conductivity in an a-b surface direction at 25° C. of not less than 1000 W/mK.

Provided is a graphite plate, consisting essentially of: graphite; and pores, wherein said graphite plate has a porosity from 1% to 30%. Further provided is a method for producing a graphite plate, including: applying welding pressure to at least one glass-like carbon material in a state in which said at least one glass-like carbon material is maintained in an inert atmosphere under heating conditions, to produce a graphite plate having a porosity from 1% to 30%.