▎ 摘　　要

NOVELTY - Graphene oxide is dispersed in water, and quaternary phosphine salt is added to mixture and mixed. Tungsten-ammonium thiosulfate, selenium powder and hydrazine are added to mixture and mixed. The mixture is hydrothermally reacted and cooled. The solid product is collected, centrifuged, washed, dried and thermally treated under nitrogen or argon atmosphere, to obtain selenium-doped tungsten sulfide/nitride total-phosphorus nanosheet graphene nanocomposite material. USE - Preparation of selenium-doped tungsten sulfide/nitride total-phosphorus nanosheet graphene nanocomposite material used in hydrogen evolution reactions (claimed). ADVANTAGE - The method enables preparation of selenium-doped tungsten sulfide/nitride total-phosphorus nanosheet graphene nanocomposite material by simple and efficient method. DETAILED DESCRIPTION - Graphene oxide is dispersed in water, and quaternary phosphine salt is added to mixture and mixed. Tungsten-ammonium thiosulfate, selenium powder and hydrazine are added to mixture and mixed. The mixed solution has graphene oxide concentration of 20-60 mmol/L, quaternary phosphonium salt concentration of 10-180 mmol/L and ammonium tungstate concentration of 10-60 mmol/L. The molar ratio of hydrazine thiosulfate and ammonium tungstate is 10 mL:1 mmol. The molar ratio of graphene oxide and ammonium tungstate thiosulfate is 1:1-2:1. The molar ratio of quaternary phosphine salt or ammonium tungstate and thiosulfate is 1:1-3:1. The mixture is hydrothermally reacted and cooled. The solid product is collected, centrifuged, washed, dried and thermally treated under nitrogen or argon atmosphere, to obtain selenium-doped tungsten sulfide/nitride total-phosphorus nanosheet graphene nanocomposite material.