▎ 摘　　要

NOVELTY - A graphene-tungsten disulfide-nitrogen, phosphorus doped electrochemical composite electrode preparing method involves dispersing graphene oxide in water and adding quaternary phosphine salt to mix. Ammonium thiosulfate and ammonium tungstate are added and mixed to obtain solution. The mixed dispersion is subjected to hydrothermal reaction and cooled. The solid product is collected by centrifugation, washed, dried, and heat-treated in nitrogen or argon atmosphere. The resulting composite nanomaterial is utilized as electrochemical storage active material to obtain composite electrode. USE - Method for preparing graphene-tungsten disulfide-nitrogen, phosphorus doped electrochemical composite electrode. ADVANTAGE - The method enables preparing graphene-tungsten disulfide-nitrogen, phosphorus doped electrochemical composite electrode in a simple and easy manner. DETAILED DESCRIPTION - A graphene-tungsten disulfide-nitrogen, phosphorus doped electrochemical composite electrode preparing method involves dispersing graphene oxide with concentration of 20-60 mmole/l in water and adding quaternary phosphine salt with concentration of 10-180 mmole/l to uniformly mix. Ammonium thiosulfate and ammonium tungstate are added and mixed to obtain solution, where the concentration of ammonium thiosulfate is 10-60 mmole/l, ratio of the ammonium thiosulfate and ammonium tungstate is 10 ml: 1 mmole, molar ratio of graphene oxide and ammonium tungstate is 1:1-2:1, and the molar ratio of quaternary phosphonium salt and ammonium thiosulfate is 1:1-3:1. The mixed dispersion is subjected to hydrothermal reaction and cooled. The solid product is collected by centrifugation, washed, dried, and heat-treated in nitrogen or argon atmosphere to obtain graphene-tungsten disulfide-nitrogen, phosphorus co-doped composite nanomaterial. The resulting composite nanomaterial is utilized as electrochemical storage active material to obtain composite electrode.