▎ 摘 要
NOVELTY - Producing (M1) an exfoliated graphite product from a layered graphite material where product having exfoliated graphite, flexible graphite, or nano-scaled graphene platelets involves forming a graphite intercalation compound by a chemical oxidation reaction which uses a combination of a carboxylic acid and hydrogen peroxide as an intercalate source; and rapidly heating graphite intercalation compound to a desired temperature for a length of time sufficient for producing exfoliated graphite. USE - For producing exfoliated graphite product (claimed) such as nano-scaled graphene platelets or graphite nano-platelets. ADVANTAGE - The method provides nano-scaled graphene platelets are much lower-cost alternatives to carbon nano-tubes or carbon nano-fibers. The resulting exfoliated flakes is readily separated, via a mechanical shearing treatment, into individual nano-scaled graphene platelets (NGPs) that are relatively uniform in thickness, this was achieved without using an undesirable acid like sulfuric acid or undesirable oxidizing agent like nitric acid or potassium permanganate. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for producing ultra-thin, nano-scaled graphene platelets with an average thickness smaller than 2 nm or 5 graphene sheets from a layered graphite material involving forming a graphite intercalation compound by a chemical oxidation reaction which uses a combination of a carboxylic acid and hydrogen peroxide as an intercalate source; rapidly heating graphite intercalation compound to a desired temperature to produce exfoliated graphite; re-intercalating exfoliated graphite by repeating forming step, using a combination of a carboxylic acid and hydrogen peroxide as an intercalate source, to produce a further-intercalated graphite compound; and rapidly heating further intercalated graphite compound to a desired temperature for further exfoliating further intercalated compound and optionally subjecting a further exfoliated compound to a mechanical shearing treatment to produce ultra-thin, nano-scaled graphene platelets.