The invention discloses a preparation method of a porous
cobalt phosphide nanowire catalyst. The method comprises the following steps that a solution is prepared by taking
urea as a precipitant, taking
cobalt sulfate hepathydrate as a
cobalt source and taking glycerin and deionized water as solvents; the solution is added into a
high pressure reactor for a
hydrothermal reaction, after sufficient reaction is achieved, suction
filtration and washing are conducted,
vacuum drying is conducted, and then linear basic cobalt
carbonate is obtained; in a tubular furnace, air burning is conducted on the linear basic cobalt
carbonate at certain temperature, and cobaltosic
oxide is obtained; and
sodium hypophosphite serves as a
phosphorus source, a cobaltosic
oxide precursor and
sodium hypophosphite are placed at the two ends of the same porcelain boat according to a certain proportion, the
phosphorus source is placed at the upper
stream of
airflow, the treated porcelain boat is put into the tubular furnace for lower temperature
calcination in an
inert atmosphere, and preparation of the porous
cobalt phosphide nanowire catalyst is achieved. The preparation method of the porous
cobalt phosphide nanowire catalyst has the advantages that the production technology is simple, the cost is low, electrochemical activity and stability of the catalyst can be effectively improved, and the method is wide in application.