▎ 摘　　要

NOVELTY - Composition comprises an acid and an oxidizing agent. USE - The composition is useful for removing carbonization catalyst to manufacture a graphene sheet (all claimed) that is transferred onto a substrate during manufacturing of a display device and a solar cell. ADVANTAGE - The method is capable of removing carbonization catalyst to manufacture a graphene sheet having uniform sheet resistance and without surface damage. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for manufacturing graphene sheets comprising: forming graphene on carbonization catalyst; and removing the catalyst using a composition containing acid and an oxidizing agent.