▎ 摘　　要

NOVELTY - Preparation of nitrogen-oxygen co-doped three-dimensional nano-porous graphene involves preparing nano-porous nickel alloy foil, chemically-etching to obtain three-dimensional nano-porous nickel foil sheet, placing in a quartz boat, adding graphite and acetylene, heating, centrifuging, calcining, soaking sample in hydrochloric acid solution for 15 hours, washing with deionized water and drying. USE - Preparation of nitrogen-oxygen co-doped three-dimensional nano-porous graphene (claimed).