▎ 摘　　要

NOVELTY - The cellulose-based graphene composite material loaded with cobalt-nickel double metal selenide is prepared by dissolving cobalt salt and nickel salt in deionized water to obtain cobalt (II)/nickel salt mixed solution, adding cobalt/nickel salt mixture into cellulose, stirring for 30-40 minutes, raising the temperature to 60-80 degree centigrade, heating and stirring for 4-6 hours, cracking at high temperature, cooling, vacuum drying to obtain intermediate, adding deionized water to the intermediate, ultrasonically dispersing, adding selenium and hydrazine hydrate, stirring, moving the obtained mixture to a hydrothermal reaction kettle, hydrothermally reacting for 1-1.5 hours, washing, and drying USE - Cellulose-based graphene composite material loaded with cobalt-nickel double metal selenide used in electro-catalysis for hydrogen production by electrically catalyzing and decomposing water (claimed). ADVANTAGE - The method is simple, and easy to obtain, green and pollution-free, and provides the cellulose-based graphene composite material loaded with cobalt-nickel double-metal selenide, which has high hydrogen production performance, and has a sheet layer structure, and takes cellulose as carrier, and is uniformly anchored on cellulose, so as to improve the conductivity of the material. The method provides the composite material that is hollow nano-tube-tube structure, which is easy to handle, easy to process, and can be prepared in a simple and environmentally-friendly manner. The composite material has a unique spherical and layered structure of cobalt and nickel, and prevents the agglomeration between the selenides. DESCRIPTION OF DRAWING(S) - The drawing shows a graphical view illustrating the XRD pattern of intermediates.