Preparation and application of bimetallic catalytic material for electrocatalytic CO2 reduction
A catalytic material and bimetallic technology, applied in the direction of electrodes, electrolytic components, electrolytic process, etc., can solve the problem of difficult control of selectivity, achieve good catalytic performance, rich porous structure, and low Faradaic efficiency
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Embodiment 1
[0040] The preparation method of the bimetallic copper-nickel catalytic material in the present embodiment comprises the following steps:
[0041] Step 1. Add 0.100g of nickel acetate tetrahydrate and 0.104g of copper acetylacetonate into a beaker containing 40mL of ethanol, add 0.930g of 1,10-phenanthroline, and stir at 50°C for 20min;
[0042] Step 2: Add 1.114 g of Ketjen Black, continue stirring at 60°C for 5 hours, and then put it into an 80°C oven to dry for 12 hours to remove ethanol to obtain a precursor;
[0043] Step 3. The precursor is placed in a mortar and fully ground, placed in a quartz boat, transferred to a tube furnace for calcination, and calcined in a N 2 Under the atmosphere at 5℃min -1 The temperature was raised to 600°C, kept for 2h, and cooled to room temperature naturally;
[0044] Step 4. Put the calcined black powder into 1mol L -1 In HCl, acidified at 60 °C for 24 h, and finally washed with deionized water to neutral dry to obtain bimetallic copp...
Embodiment 2
[0057] The preparation method of the bimetallic copper-nickel catalytic material in the present embodiment comprises the following steps:
[0058] Step 1. Add 14.9 mg of nickel acetate tetrahydrate and 15.7 mg of copper acetylacetonate into a beaker containing 10 mL of ethanol, add 195.3 mg of 1,10-phenanthroline, and stir at 50°C for 20 minutes;
[0059] Step 2: Add 200 mg of Ketjen Black, continue stirring at 60°C for 5 hours, and then put it into an oven at 80°C for drying for 12 hours to remove ethanol to obtain a precursor;
[0060] Step 3. The obtained precursor is placed in a mortar and fully ground, placed in a quartz boat, transferred to a tube furnace for calcination, and calcined in a N 2 Under the atmosphere at 5℃min -1 The temperature was raised to 600°C, kept for 2h, and cooled to room temperature naturally;
[0061] Step 4. Put the calcined black powder into 1mol L -1 In HCl, acidified at 60 °C for 24 h, and finally washed with deionized water to neutral dry ...
Embodiment 3
[0065] The preparation method of the bimetallic copper-nickel catalytic material in the present embodiment comprises the following steps:
[0066] Step 1. Add 0.100g of nickel acetate tetrahydrate and 0.079g of copper acetate into a beaker containing 40mL of ethanol, add 0.475g of 1,10-phenanthroline, and stir at 50°C for 20min;
[0067] Step 2. Add 1.920 g of Ketjen Black, continue stirring at 60°C for 5 hours, and then put it into an oven at 80°C to dry for 12 hours to remove ethanol to obtain a precursor;
[0068] Step 3. The obtained precursor is placed in a mortar and fully ground, placed in a quartz boat, transferred to a tube furnace for calcination, and calcined in a N 2 Under the atmosphere at 5℃min -1 The temperature was raised to 600°C, kept for 2h, and cooled to room temperature naturally;
[0069] Step 4. Put the calcined black powder into 1mol L -1 In HCl, acidified at 60 °C for 24 h, and finally washed with deionized water to neutral dry to obtain bimetallic ...
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