▎ 摘　　要

NOVELTY - Preparation of polyaniline carbonized graphene comprises adding polyaniline to catalyst, mixing, and carbonizing at 1000-1600 degrees C. USE - Method for preparing polyaniline carbonized graphene used for preparing graphene black sheet (claimed). ADVANTAGE - The method is achieved at low-temperature of carbonization. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for the preparation of manganese dioxide and graphene mixture comprising refluxing carbonized graphene with water/concentrated sulfuric acid/potassium permanganate for 2 hours, vacuum filtering, repeatedly washing with deionized water until neutral.