A kind of alloy catalyst and its preparation method and its application in hydrogen evolution reaction
An alloy catalyst and hydrogen evolution reaction technology, applied in the field of materials, can solve the problems of high cost, hindering acidic electrolyte water decomposition technology, lack and other problems, achieve good activity and stability, improve material transmission rate, and simple operation
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Embodiment 1
[0036] 40.00mg commercial carbon black KJ600, 17.02mg IrCl 3 with 2.50mg VCl 3 Disperse in 50mL of water and stir evenly, and then perform rotary evaporation to remove solvent water to obtain a uniform mixture. The rotation speed during the rotary evaporation process is 90 rpm, the temperature of the water bath is 80°C, and the vacuum degree is 60mbar;
[0037] The resulting homogeneous mixture was transferred to a quartz crucible, placed in a tube furnace, and then argon-hydrogen gas was introduced as a reducing gas (the mass ratio of argon to hydrogen was 95:5), and the tube furnace was heated at 5°C / min Raise the temperature to 1000°C at a rate of 1000°C and keep for 3h; then cool down to room temperature (20-30°C) at a rate of 5°C / min; maintain normal pressure in the tube furnace to obtain the alloy catalyst intermetallic compound Ir 3 V nanoparticle materials.
[0038] For the intermetallic compound Ir prepared in Example 1 of the present invention 3 The V nanoparticle...
Embodiment 2
[0048] 40.00mg commercial carbon black KJ600, 17.02mg IrCl 3 with 2.50mg VCl 3 Disperse in 50 mL of water and stir evenly, and then perform rotary evaporation to remove solvent water to obtain a uniform mixture. The rotation speed during the rotary evaporation process is 90 revolutions / min, the temperature of the water bath is 80 ° C, and the vacuum degree is 60 mbar;
[0049] The resulting homogeneous mixture was transferred to a quartz crucible, placed in a tube furnace, and then argon-hydrogen gas was introduced as a reducing gas (the mass ratio of argon to hydrogen was 95:5), and the tube furnace was heated at 5°C / min The temperature was raised to 800°C at a high rate and kept for 3 hours; the temperature was then lowered to room temperature (20-30°C) at a rate of 5°C / min; the tube furnace was kept at normal pressure to obtain the alloy catalyst IrV alloy nanoparticle material.
[0050] The IrV alloy nanoparticle material prepared in Example 2 of the present invention is ...
Embodiment 3
[0054] 40.00mg commercial carbon black KJ600, 17.02mg IrCl 3 with 2.50mg VCl 3 Disperse in 50 mL of water and stir evenly, and then perform rotary evaporation to remove solvent water to obtain a uniform mixture. The rotation speed during the rotary evaporation process is 90 revolutions / min, the temperature of the water bath is 80 ° C, and the vacuum degree is 60 mbar;
[0055] The resulting homogeneous mixture was transferred to a quartz crucible, placed in a tube furnace, and then argon-hydrogen gas was introduced as a reducing gas (the mass ratio of argon to hydrogen was 95:5), and the tube furnace was heated at 5°C / min The temperature was raised to 600°C at a rate of 5°C / min and kept for 3 hours; then the temperature was lowered to room temperature (20-30°C) at a rate of 5°C / min; 3 V alloy nanoparticle material.
[0056] The IrV alloy nanoparticle material prepared in Example 3 of the present invention was detected by a high-angle annular dark field image scanning project...
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