A Method for Constructing a Core-Shell Carbon Nanoscale Oxygen Reduction Catalyst with Uniform Fe-N Distribution by Polymerization-Dissolution Method
A uniformly distributed, carbon nanotechnology, used in structural parts, hybrid capacitor electrodes, electrical components, etc.
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Embodiment 1
[0040] The mass ratio of aniline to Fe-MOF is 6:1, the reaction time is 20min, and the morphology is shown in the attached figure 2 .
[0041] Step 1, measure 0.60mL aniline solution, disperse in (1.0M HClO 4 + ethanol) in a mixed solvent and stirred for 30 min under an ice bath.
[0042] Step 2. Weigh 0.100 g of Fe-MOF, slowly add it into the above solution, and continue stirring for 30 min under ice bath.
[0043] Step 3, take by weighing 0.1334g (NH 4 ) 2 S 2 o 8 , dissolved in 10 mL of 1.0M HClO 4 After cooling in an ice bath, add it to the above mixed solution and continue to stir for 20 minutes;
[0044] Step 4. After the reaction, the solution was centrifugally cleaned with secondary water and ethanol respectively, and dried in a vacuum oven (60°C, 24h) to obtain a powder material.
[0045] Step 5. Place the obtained powder material in a tube furnace, under the protection of nitrogen, and calcine at high temperature. The heating program is 240 (1h), 900°C (2h),...
Embodiment 2
[0047] The mass ratio of aniline to Fe-MOF is 8:1, the reaction time is 3h, and the morphology is shown in the attached image 3 .
[0048] Step 1, measure 0.80mL aniline solution, disperse in (1.0M HClO 4 + ethanol) in a mixed solvent and stirred for 30 min under an ice bath.
[0049] Step 2. Weigh 0.100 g of Fe-MOF, slowly add it into the above solution, and continue stirring for 30 min under ice bath.
[0050] Step 3, take by weighing 0.1334g (NH 4 ) 2 S 2 o 8 , dissolved in 10 mL of 1.0M HClO 4 After cooling in an ice bath, add it to the above mixed solution and continue to stir for 3h;
[0051] Step 4. After the reaction, the solution was centrifugally cleaned with secondary water and ethanol respectively, and dried in a vacuum oven (60°C, 24h) to obtain a powder material.
[0052] Step 5. Put the obtained powder material in a tube furnace, under the protection of nitrogen, and calcined at high temperature. The heating program is 240 (2h), 800°C (2h), and the heat...
Embodiment 3
[0054] The mass ratio of aniline to Fe-MOF is 8:1, the reaction time is 9h, and the morphology is shown in the appendix Figure 4 .
[0055] Step 1, measure 0.80mL aniline solution, disperse in (1.0M HClO 4 + ethanol) in a mixed solvent and stirred for 30 min under an ice bath.
[0056] Step 2. Weigh 0.100 g of Fe-MOF, slowly add it into the above solution, and continue stirring for 30 min under ice bath.
[0057] Step 3, take by weighing 0.1667g of (NH 4 ) 2 S 2 o 8 , dissolved in 10 mL of 1.0M HClO 4 After cooling in an ice bath, add it to the above mixed solution and continue to stir for 9h;
[0058] Step 4. After the reaction, the solution was centrifugally cleaned with secondary water and ethanol respectively, and dried in a vacuum oven (60°C, 24h) to obtain a powder material.
[0059] Step 5. Place the obtained powder material in a tube furnace, under the protection of nitrogen, and calcine at high temperature. The heating program is 240 (1h), 700°C (2h), and the...
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