▎ 摘 要
NOVELTY - Graphite particles are mixed with a perfluorosulfonate ionomer in an aqueous liquid, to form an aqueous dispersion of graphite particles. The aqueous dispersion is ultrasonically processed to form an aqueous dispersion of few-layer graphene nanosheets. The perfluorosulfonate ionomer is provided as a thin and continuous layer on the few-layer graphene nanosheets. USE - Production of aqueous dispersion of few-layer graphene nanosheets used for coated article (claimed) and production of transparent conductive films for electronic devices. ADVANTAGE - The graphite is exfoliated economically by simple method. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) composition, which comprises aqueous dispersion of a mixture of several few-layer graphene nanosheets and perfluorosulfonate ionomer; and (2) method of providing a coated article, which involves applying the composition on the substrate.