▎ 摘　　要

NOVELTY - Preparing black phosphorus-graphene heterojunction loaded nickel nitride, comprises (a) dispersing red phosphorus powder and cellulose powder in the deionized water, ultrasonically processing to obtain a dispersion containing red phosphorus-cellulose combination, (b) adding nickel nitride particles to the dispersion to form mixed solution, stirring, drying the mixed solution in a vacuum oven to constant weight to obtain a mixture, (c) processing high pressure discharge of the mixture in a high pressure discharge cavity to obtain a crude product, (d) dispersing the crude product in absolute ethyl alcohol, injecting into a centrifugal tube, then centrifugally purifying in a centrifuge to form refined product, and then drying the product in a vacuum oven to constant weight. USE - The nickel nitride is useful in electrocatalytic oxygen evolution reaction (OER). ADVANTAGE - The product is economical, and is of high quality. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a device for producing black phosphorus-graphene heterojunction loaded nickel nitride.