A preparation method of catalyst Pd-Ni-Fe/C applied to a cathode material of a zinc-air battery

摘要

A preparation method of catalyst Pd-Ni-Fe/C applied to a cathode material of a zinc-air battery, wherein the preparation method comprises the steps of adding palladium salt, nickel salt and iron salt into a beaker, then adding deionized water and heating to 50-60°C. Carbon nanotubes, having been dried at a temperature of 60-80°C, are then added to the solution, and after being ultrasonically stirred for one hour, a magnetic stirring apparatus is applied to stir the mixture for 20-30 hours at a temperature of 80-95°C, to obtain a catalyst precursor after moisture is dried by distillation. The precursor is placed in a vacuum drying box for 12 hours and then, after being taken out, the precursor is ground before being placed in a tube furnace fluxed with hydrogen for 2-9 hours at a temperature of 300-450°C to reduce the precursor. Then the temperature is increased to 500-650°C for 3-8 hours, to obtain the catalyst Pd-Ni-Fe/C after being cooled. The catalyst Pd-Ni-Fe/C is stated to have a good stability and higher utilization rate of zinc.