Graphenic carbon particles
AssigneePPG Industries Ohio, Inc.
InventorsNoel R. Vanier, Cheng-Hung Hung
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Abstract
Graphenic carbon particles having controlled aspect ratios, surface areas, numbers of carbon atom layers, and Raman spectroscopy peak ratios are disclosed. The graphenic carbon particles may include three or more stacked carbon atom layers, and may have a Raman spectroscopy 2D/G peak ratio of at least 1:1. Adjacent carbon atom layers within each graphenic carbon particle may be slightly misaligned with respect to each other to form a turbostatic structure.
Claims14
Graphenic carbon particles that are thermally produced by heating a precursor material comprising methane or a hydrocarbon material capable of forming a two-carbon-fragment species in a thermal zone having a temperature of greater than 3,500° C. to form the graphenic carbon particles from the precursor material;
- said graphenic carbon particles having an aspect ratio of greater than 3:1, a B.E.T. specific surface area of at least 50 square meters per gram, an average of 3 or more carbon atom layers having turbostratic misalignment, and a Raman spectroscopy 2D/G peak ratio of at least 1.1:1.
Dependencies are inferred from the claim text.