▎ 摘　　要

NOVELTY - The method involves mixing graphite oxide, Prussian blue analogue cobalt iron-phenylboronic acid nano particles and polyvinylpyrrolidone after mixing ultrasonic dispersion uniformly. Hydro-thermal reaction is finally separated and purified to obtain cobalt iron-phenylboronic acid/GA gas gel. The cobalt iron-phenylboronic acid/GA gas gel are placed in an inert atmosphere for heat treatment to obtain cobalt ferrite nanoparticles NC/GA gas gel. The cobalt ferrite nanoparticles NC/GA gas gel is loaded on a foam metal to obtain carbon-nitrogen-doped spinel-type cobalt iron oxide/gas gel graphene. USE - Method for preparing a carbon nitrogen doped spinel-type cobalt iron oxide or alloy hybrid/graphene gas gel electrode material (claimed). ADVANTAGE - The method enables to prepare carbon-nitrogen-doped spinel type cobalt iron oxide/graphene gas gel electrode material that has good stability and wide application in electrolyzing water to prepare hydrogen. The rough outer surface provides higher specific surface area and more active sites to improve the performance, the holes with different sizes promote mass transfer in the reaction process, and improve the hydrogen evolution efficiency. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a carbon-nitrogen-doped spinel-type cobalt-iron oxide or alloy hybrid/graphene gas gel gas-containing electrode material utilizing device. DESCRIPTION OF DRAWING(S) - The drawing shows a scanning electron micrograph view of a carbon nitrogen doped spinel-type cobalt iron oxide or alloy hybrid/graphene gas gel electrode material.