▎ 摘　　要

NOVELTY - The load comprising an one-dimensional cellulose nano fibril (CNF) and high content of aramid fiber (ANF), where two-dimensional graphene is prepared through specific directional freezing casting and freeze drying for preparing porous nano sheets. The porous nano sheets are connected with each other of 3D honeycomb gas gel CNF and a surface of a large negative adsorption low boiling point metal, where dicyclopentadienyl iron is introduced with volatilization of cadmium and introduction of iron in pyrolysis process for preparing N-doped carbon gas gel electro-catalyst iron single atom load. USE - N-doped carbon gas gel electro-catalyst single atom load for used in a metal-air battery catalyst field. Can also be used in zinc-air batteries. ADVANTAGE - The electrocatalyst has better performance, low cost, and wide application prospect in a metal-air battery catalyst field. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing N-doped carbon gas gel electro-catalyst single atom load. DESCRIPTION OF DRAWING(S) - The drawing shows schematic view of a N-doped carbon gas gel electro-catalyst single atom load.