Abstract: Synthesizing holey graphene oxide includes dispersing graphene oxide in an aqueous solution to yield a first graphene oxide dispersion, irradiating the first graphene oxide dispersion with microwave radiation, thereby at least partially reducing the graphene oxide in the first graphene oxide dispersion to yield a second graphene oxide dispersion that includes partially reduced graphene oxide, combining the second graphene oxide dispersion with an etching agent to form a third graphene oxide dispersion, and irradiating the third graphene oxide dispersion with microwave radiation to yield a fourth graphene oxide dispersion comprising holey graphene oxide.

Abstract: Synthesizing holey graphene oxide includes dispersing graphene oxide in an aqueous solution to yield a first graphene oxide dispersion, irradiating the first graphene oxide dispersion with microwave radiation, thereby at least partially reducing the graphene oxide in the first graphene oxide dispersion to yield a second graphene oxide dispersion that includes partially reduced graphene oxide, combining the second graphene oxide dispersion with an etching agent to form a third graphene oxide dispersion, and irradiating the third graphene oxide dispersion with microwave radiation to yield a fourth graphene oxide dispersion comprising holey graphene oxide.

Abstract: A method for preparing a ceramic-modified carbon-carbon composite material. The method includes preparing and thermally treating a carbon fiber preform, and depositing pyrolytic carbon on the carbon fiber preform in a chemical vapor infiltration furnace, to yield a porous carbon-carbon composite material; placing the carbon-carbon composite material deposited with the pyrolytic carbon on a zirconium-titanium powder mixture, and performing a reactive melt infiltration, to yield a carbon-carbon composite material modified by non-stoichiometric zirconium titanium carbide; and placing the carbon-carbon composite material modified by non-stoichiometric zirconium titanium carbide in a powder mixture including carbon, boron carbide, silicon carbide, silicon, and an infiltration enhancer, and performing an embedding method, to form a ceramic-modified carbon-carbon composite material.

Abstract: A method for preparing a ceramic-modified carbon-carbon composite material. The method includes preparing and thermally treating a carbon fiber preform, and depositing pyrolytic carbon on the carbon fiber preform in a chemical vapor infiltration furnace, to yield a porous carbon-carbon composite material; placing the carbon-carbon composite material deposited with the pyrolytic carbon on a zirconium-titanium powder mixture, and performing a reactive melt infiltration, to yield a carbon-carbon composite material modified by non-stoichiometric zirconium titanium carbide; and placing the carbon-carbon composite material modified by non-stoichiometric zirconium titanium carbide in a powder mixture including carbon, boron carbide, silicon carbide, silicon, and an infiltration enhancer, and performing an embedding method, to form a ceramic-modified carbon-carbon composite material.