Binary metal phosphide controlled by molybdenum trioxide (tungsten), preparation method and application
A binary metal, molybdenum trioxide technology, applied in the direction of electrodes, electrode shape/type, electrolysis process, etc., can solve problems such as unrealized, and achieve the effect of increasing the contact area
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[0043] Example 1
[0044] (1) Surface cleaning of nickel foam:
[0045] The nickel foam was immersed in 0.1 M dilute hydrochloric acid, and ultrasonically oscillated in an ultrasonic cleaner for 30 minutes to remove the dense NiO film on the surface; then ultrasonically cleaned in deionized water. Then it was ultrasonically cleaned in acetone; finally, it was cleaned in absolute ethanol. The cleaned nickel foam was dried in a vacuum drying oven at 60 °C for 6 h.
[0046] (2) Preparation of Mo-Co-Ni columnar precursors by hydrothermal method:
[0047] Put 0.002 M Ni (NO 3 ) 3 ·5H 2 O, 0.002 M Co(NO 3 ) 2 , 0.004 M Na 2 MoO 4 , 0.1 M NH 4 F was added to the reaction kettle, and magnetically stirred for 30 min to obtain a uniform solution; then, the cleaned nickel foam was added to the reaction kettle, and kept in an oven with a temperature of 160 ° C for 10 hours; after natural cooling, a large amount of deionized water was used. Rinse off the residual substances on th...
Example Embodiment
[0050] Example 2
[0051] (1) Surface cleaning of nickel foam:
[0052] The nickel foam was immersed in 0.1 M dilute hydrochloric acid, and ultrasonically oscillated in an ultrasonic cleaner for 30 minutes to remove the dense NiO film on the surface; then ultrasonically cleaned in deionized water. Then it was ultrasonically cleaned in acetone; finally, it was cleaned in absolute ethanol. The cleaned nickel foam was dried in a vacuum drying oven at 60 °C for 6 h.
[0053] (2) Preparation of tungsten-cobalt-nickel columnar precursors by hydrothermal method:
[0054] Put 0.002 M Ni (NO 3 ) 3 ·5H 2 O, 0.002 M Co(NO 3 ) 2 , 0.004 M Na 2 WO 4 , 0.1 M NH 4 F was added to the reaction kettle, and magnetically stirred for 30 min to obtain a uniform solution; then, the cleaned nickel foam was added to the reaction kettle, and kept in an oven with a temperature of 160 ° C for 10 hours; after natural cooling, a large amount of deionized water was used. Rinse off the residual sub...
Example Embodiment
[0057] Example 3
[0058] (1) Surface cleaning of nickel foam:
[0059] The nickel foam was immersed in 0.1 M dilute hydrochloric acid, and ultrasonically oscillated in an ultrasonic cleaner for 30 minutes to remove the dense NiO film on the surface; then ultrasonically cleaned in deionized water. Then it was ultrasonically cleaned in acetone; finally, it was cleaned in absolute ethanol. The cleaned nickel foam was dried in a vacuum drying oven at 60 °C for 6 h.
[0060] (2) Hydrothermal preparation of molybdenum-copper-nickel columnar precursors:
[0061] Put 0.002 M Ni (NO 3 ) 3 ·5H 2 O, 0.002 M Cu (NO 3 ) 2 , 0.004 M Na 2 MoO 4 , 0.1 M NH 4 F was added to the reaction kettle, and magnetically stirred for 30 min to obtain a uniform solution; then, the cleaned nickel foam was added to the reaction kettle, and kept in an oven with a temperature of 160 ° C for 10 hours; after natural cooling, a large amount of deionized water was used. Rinse off the residual substance...
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