A nanorod self-assembled iron oxide microsheet electrocatalyst and its synthesis method
An iron oxide, electrocatalyst technology, applied in metal/metal oxide/metal hydroxide catalysts, ferrous oxides, physical/chemical process catalysts, etc., can solve the problem of affecting catalyst performance, high manufacturing cost, Cumbersome process and other problems, to achieve the effect of increasing hydrogen production rate, reducing production cost and simplifying process
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Embodiment 1
[0022] S1. Cut the foam iron to a size of 1×5cm; then clean the cut foam iron, first soak it in acetone for 10 minutes, then soak it in 3moL / L dilute hydrochloric acid for 20 seconds, and then wash it with ultrapure water and Rinse with ethanol three times alternately, and then put into deionized water for later use.
[0023] S2. Weigh 0.063 g of urea and dissolve it in 25 ml of ultrapure water, and stir to obtain a transparent and uniform urea aqueous solution.
[0024] S3, pour the stirred urea aqueous solution into a high-temperature hydrothermal kettle with a polytetrafluoroethylene liner, put the foam iron pretreated in step S1 into the polytetrafluoroethylene liner and seal it, and put it in an oven for reaction. The reaction time was 12 hours, and the temperature was 120°C.
[0025] S4. After the reaction is completed, the reaction kettle is cooled to room temperature, and the obtained product is cross-treated with ethanol and ultrapure water, and subjected to vacuum ...
Embodiment 2
[0027] S1. Cut the foam iron to a size of 1×5cm, and then clean the cut foam iron. First, soak it in acetone for 10 minutes, then soak it in 3moL / L dilute hydrochloric acid for 30 seconds, and then wash it with ultrapure water and Rinse with ethanol three times alternately, and then put into deionized water for later use.
[0028] S2. Weigh 0.188g of urea and dissolve it in 25ml of ultrapure water, and stir to obtain a transparent and uniform urea aqueous solution.
[0029] S3, pour the stirred urea aqueous solution into a high-temperature hydrothermal kettle with a polytetrafluoroethylene liner, put the foam iron pretreated in step S1 into the polytetrafluoroethylene liner and seal it, and put it in an oven for Reaction, the reaction time is 14 hours, and the temperature is 140°C.
[0030] S4. After the reaction is completed, the reaction kettle is cooled to room temperature, and the obtained product is cross-treated with ethanol and ultrapure water, and subjected to vacuum ...
Embodiment 3
[0032] S1. Cut the foam iron to a size of 1×5cm, clean the cut foam iron, first soak it in acetone for 10 minutes, then soak it in 3moL / L dilute hydrochloric acid for 30 seconds, then wash it with ultrapure water and ethanol Rinse three times alternately, and then put it in ionized water for later use;
[0033] S2. Weigh 0.094 g of urea and dissolve it in 25 ml of ultrapure water, and stir to obtain a transparent and uniform urea aqueous solution.
[0034] S3, pour the stirred urea aqueous solution into a high-temperature hydrothermal kettle with a polytetrafluoroethylene liner, put the foam iron pretreated in step S1 into the polytetrafluoroethylene liner and seal it, and put it in an oven for reaction. The reaction time is 12 hours, and the temperature is 120°C;
[0035] S4. After the reaction is completed, the reaction kettle is cooled to room temperature, and the obtained product is cross-treated with ethanol and ultrapure water, and subjected to vacuum drying treatment....
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