▎ 摘　　要

NOVELTY - Preparing a high-stability double transition metal doped tungsten carbide-based zinc-air battery cathode material involves dispersing graphene oxide dispersion ultrasonically, adding M1 and M2 transition metal salt solutions and sodium tungstate solution, mixing and stirring, transferring to a high pressure reactor for hydrothermal reaction to obtain a precursor. The bacterial fiber gel is weighed and added to the precursor, stirred for the first time, and mixed. The graphite phase carbon nitride is added, a second stirring is performed, and a mixed solution after the stirring is completed. A certain volume of the mixed solution is freeze-dried, and after drying, the product obtained is added to the crucible. After capping and sealing, the crucible is placed in a quartz tube with one end sealed to maintain the pressure value in the quartz tube, and quartz tube is placed in a muffle furnace for calcination. USE - Method for preparing a high-stability double transition metal doped tungsten carbide-based zinc-air battery cathode material. ADVANTAGE - The method enables to prepare a high-stability double transition metal doped tungsten carbide-based zinc-air battery cathode material, where material used is safe and environmentally friendly, and the prepared material has excellent catalytic performance, and is used to successfully assemble a zinc-air battery, exhibits good performance, and has considerable application prospects. DETAILED DESCRIPTION - Preparing a high-stability double transition metal doped tungsten carbide-based zinc-air battery cathode material involves dispersing graphene oxide dispersion ultrasonically, adding M1 and M2 transition metal salt solutions and sodium tungstate solution, mixing and stirring, transferring to a high pressure reactor for hydrothermal reaction to obtain a precursor. The bacterial fiber gel is weighed and added to the precursor, stirred for the first time, and mixed. The graphite phase carbon nitride is added, a second stirring is performed, and a mixed solution after the stirring is completed. A certain volume of the mixed solution is freeze-dried, and after drying, the product obtained is added to the crucible. After capping and sealing, the crucible is placed in a quartz tube with one end sealed to maintain the pressure value in the quartz tube, and quartz tube is placed in a muffle furnace for calcination. After calcination, the quartz tube is taken out, cooled to room temperature naturally, taken out the product and put in HCl solution for pickling. The acid-washed product is added to the crucible again, and the crucible is placed in a quartz tube sealed at one end after sealing. The second calcination is carried out according to the same calcination method, and the double transition metal doped tungsten carbide-based zinc-air battery cathode material is obtained after calcination, denoted as M1M2-WC/NC.