▎ 摘　　要

NOVELTY - Preparation of two-dimensional iron oxide doped mesoporous polypyrrole/graphene composite material involves synthesizing lamellar mesoporous polypyrrole on two sides of graphene in situ with sandwich heterostructure using ferric chloride as catalyst. USE - Preparation of two-dimensional iron oxide doped mesoporous polypyrrole/graphene composite material used for electrode materials and catalytic redox reactions of supercapacitors (all claimed). ADVANTAGE - The prepared composite material achieves extremely high specific capacity and excellent stability of supercapacitors.