King Abdullah University of Science and Technology

Shashikant Pandurang Patole

Pedro M F J Costa

Pedro Miguel Ferreira Joaquim Da Costa

Bashir Hussein Warsama

Filipa Fernandes Simoes

Tahir Yapici

Pedro Miquel Ferreira Joaquim Da Costa

Graphene production methods are described based on subjecting non-covalent graphite intercalated compounds, such as graphite bisulfate, to expansion conditions such as shocks of heat and/or microwaves followed by turbulence-assisted exfoliation to produce few-layer, high quality graphene flakes. Depending on the approach selected for the exfoliation step, free-flowing graphene powder, graphene slurry, or an aqueous graphene mixture can be obtained. Surfactants can aid in dispersion, and graphene inks can be formed. The parameters of the process are simple, efficient and low-cost enabling therefore the scale-up of production. Applications include electrodes and energy storage devices.

Expansion and exfoliation of graphite to form graphene

Provided herein is a method determining the concentration of impurities in a carbon material, comprising: mixing a flux and a carbon material to form a mixture, wherein the carbon material is selected from the group consisting of graphene, carbon nanotubes, fullerene, carbon onions, graphite, carbon fibers, and a combination thereof; heating the mixture using microwave energy to form fused materials; dissolution of the fused materials in an acid mixture; and measuring the concentration of one or more impurities.

Methods of analyzing carbon nanostructures, methods of preparation of analytes from carbon nanostructures, and systems for analyzing carbon nanostructures

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Thuwal, Saudi Arabia

Shashikant Pandurang Patole