prov:value
| - The graphite flake is intercalated by dispersing flakes in a solution containing an oxidizing agent and oxidizing mixtures, including but not limited to a mixture of nitric and sulfuric acid, solutions containing nitric acid, potassium chlorate, chromic acid, potassium permanganate, potassium chromate, potassium dichromate, perchloric acid, and the like, or mixtures, including but not limited to c
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