Water electrolysis catalyst as well as preparation method and application thereof
A water electrolysis catalyst and catalyst technology, which is applied in chemical instruments and methods, physical/chemical process catalysts, electrolysis processes, etc., can solve the problems of poor hydrogen evolution catalyst effect and high overpotential of hydrogen evolution electrodes, and achieve excellent and low use effects. Effect of electrolysis voltage and increase of specific surface area
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Embodiment 1
[0020] 0.8727 nickel nitrate (Ni(NO 3 ) 2 ·6H 2 O), 0.1455g cobalt nitrate (Co(NO 3 ) 2 ·6H 2 O), 0.6650g molybdenum nitrate (Mo(NO 3 ) 3 ·5H 2 O) Dissolve in 50 ml deionized water. Add 10g of ammonium oxalate and dissolve in 50ml of deionized water, stir to dissolve, then add to the above mixed solution, place the mixed solution in a water bath at 80°C, stir and evaporate to dryness, and then dry in an oven at 60°C for 12h. The obtained solid was placed in a tube furnace protected by nitrogen, first raised to 350°C at 10°C / min, then raised to 450°C at 5°C / min, and kept at 450°C for 1 hour. After the product was cooled to room temperature, it was ground with a mortar to obtain a comparative example-catalyst Ni 0.6 Mo 0.3 co 0.1 .
Embodiment 2
[0022] 0.8727 nickel nitrate (Ni(NO 3 ) 2 ·6H 2 O), 0.1999g chromium nitrate (Cr(NO3) 3 9H2O), 0.6650g molybdenum nitrate (Mo(NO3) 3 ) 3 ·5H 2 O) Dissolve in 50 ml deionized water. Add 10g of ammonium oxalate and dissolve in 50ml of deionized water, stir to dissolve, then add to the above mixed solution, place the mixed solution in a water bath at 80°C, stir and evaporate to dryness, and then dry in an oven at 60°C for 12h. The obtained solid was placed in a tube furnace protected by nitrogen, first raised to 350°C at 10°C / min, then raised to 450°C at 5°C / min, and kept at 450°C for 1 hour. After the product was cooled to room temperature, it was ground with a mortar to obtain a comparative example-catalyst Ni 0.6 Mo 0.3 Cr 0.1 .
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