A highly efficient non-noble metal electrolytic water catalytic material and its preparation method and application
A catalytic material and non-precious metal technology, which is applied in the field of high-efficiency non-precious metal electrolytic water catalytic materials to achieve the effects of firmness and stability, good electrical conductivity and low production cost
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Embodiment 1
[0041] 1. Cut a certain size of nickel foam (1*1cm, 300PPI, 3mm), put it in ultrapure water, acetone, hydrochloric acid (1M) and ultrapure water for ultrasonication, each ultrasonic time is 20min, and then place it in a vacuum oven Dry for 12 hours;
[0042]2. Dissolve 1.7mg of ammonium molybdate and 7mg of thiourea in 2mL of water, then add 50mg of silicon dioxide (100nm, 30wt.%) and 0.5mL of ethanol, stir and mix well, and then sonicate for 60min;
[0043] 3. Take the mixed solution in step (2) and drop-coat it directly on the nickel foam, so that the precursor is evenly loaded on the nickel foam. After baking for 3 hours under a 100W infrared lamp, place it in a vacuum dryer and dry it for 10 hours. The drying temperature is 60°C;
[0044] 4. Transfer the product obtained in step (3) to a tube furnace, and in an argon atmosphere, program the temperature to 400°C at a heating rate of 10°C / min, the mixed gas flow rate is 80mL / min, and then keep it for 240min;
[0045] 5. Mi...
Embodiment 2
[0048] 1. Cut a certain size of nickel foam (1*1cm, 300PPI, 3mm), put it in ultrapure water, acetone, hydrochloric acid (1M) and ultrapure water for ultrasonication, each ultrasonic time is 20min, and then place it in a vacuum oven Dry for 12 hours;
[0049] 2. Dissolve 13.3mg of sodium tungstate and 7mg of thiourea in 2mL of water, then add 50mg of silicon dioxide (100nm, 30wt.%) and 0.5mL of ethanol, stir and mix well, and then sonicate for 60min;
[0050] 3. Take the mixed solution in step (2) and drop-coat it directly on the nickel foam, so that the precursor is evenly loaded on the nickel foam. After baking for 3 hours under a 100W infrared lamp, place it in a vacuum dryer and dry it for 10 hours. The drying temperature is 60°C;
[0051] 4. Transfer the product obtained in step (3) to a tube furnace, and in an argon atmosphere, program the temperature to 400°C at a heating rate of 10°C / min, the mixed gas flow rate is 80mL / min, and then keep it for 240min;
[0052] 5. Mi...
Embodiment 3
[0055] 1. Cut a certain size of nickel foam (1*1cm, 300PPI, 3mm), put it in ultrapure water, acetone, hydrochloric acid (1M) and ultrapure water for ultrasonication, each ultrasonic time is 20min, and then place it in a vacuum oven Dry for 12 hours;
[0056] 2. Dissolve 23.7mg of cobalt nitrate and 7mg of thiourea in 2mL of water, then add 50mg of silicon dioxide (100nm, 30wt.%) and 1mL of ethanol, stir and mix well, and then sonicate for 60min;
[0057] 3. Take the mixed solution in step (2) and drop-coat it directly on the nickel foam, so that the precursor is evenly loaded on the nickel foam. After baking for 3 hours under a 100W infrared lamp, dry for 10 hours at a drying temperature of 60 ° C;
[0058] 4. Transfer the product obtained in step (3) to a tube furnace, and in an argon atmosphere, program the temperature up to 400°C at a heating rate of 10°C / min, with a mixed gas flow rate of 80ml / min, and then keep it for 240min;
[0059] 5. Mix 25mL of hydrofluoric acid, 25...
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