Nitrogenous mesoporous carbon/MnO2 composite material and preparation method thereof
A composite material and mesoporous carbon technology, applied in the field of composite material manufacturing, can solve problems such as uneven reaction temperature, unsafe time, troublesome operation, etc., and achieve the effect of excellent electrochemical performance, mild reaction conditions and simple reaction process
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Embodiment 1
[0037] Templating agent 1g, 1g and 50ml of water are placed in a reaction container, after mixing, ultrasonically disperse it evenly, dry it, then put it into a furnace protected by an inert gas and heat it to 600°C, keep the temperature for 3 hours, and add the obtained product to the 4 React in a plastic container of F aqueous solution for 48 hours, centrifuge the solution to obtain a black powder, then add deionized water, ultrasonically disperse, and centrifuge, repeat this step 3-5 times, dry the product to obtain a purified black powder, and test its nitrogen content The amount is 25% (mass ratio).
[0038] In the reaction vessel, add 15 mg of the above-mentioned purified black powder and 15 ml of water, ultrasonically disperse it evenly, and slowly add 15 ml of KMnO with a concentration of 1 mol / L 4 solution, put the reaction vessel in a 60°C oil bath for 1 hour, centrifuge the solution to obtain a black powder, and dry it to obtain nitrogen-containing mesoporous carb...
Embodiment 2
[0040] Templating agent 1g, 1g and 50ml of water are placed in a reaction container, after mixing, ultrasonically disperse it evenly, dry it, then put it into a furnace protected by an inert gas and heat it to 1100°C, keep the temperature for 3 hours, and add the obtained product to the 4 React in a plastic container of F aqueous solution for 48 hours, centrifuge the solution to obtain a black powder, then add deionized water, ultrasonically disperse, and centrifuge, repeat this step 3-5 times, dry the product to obtain a purified black powder, and its nitrogen content 5% (mass ratio).
[0041] In the reaction vessel, add 15 mg of the above-mentioned purified black powder and 15 ml of water, ultrasonically disperse it evenly, and slowly add 20 ml of KMnO with a concentration of 1 mol / L 4 solution, put the reaction vessel in a 60°C oil bath for 1 hour, centrifuge the solution to obtain a black powder, and dry it to obtain nitrogen-containing mesoporous carbon / MnO 2 Composite...
Embodiment 3
[0043] Templating agent 1g, 1g and 50ml of water are placed in a reaction container, after mixing, ultrasonically disperse it evenly, dry it, then put it into a furnace protected by an inert gas and heat it to 600°C, keep the temperature for 3 hours, and add the obtained product to the 4 React in a plastic container of F aqueous solution for 48 hours, centrifuge the solution to obtain a black powder, then add deionized water, ultrasonically disperse, and centrifuge, repeat this step 3-5 times, dry the product to obtain a purified black powder, and its nitrogen content It is 27% (mass ratio).
[0044] In the reaction vessel, add 15 mg of the above-mentioned purified black powder and 15 ml of water, ultrasonically disperse it evenly, and slowly add 10 ml of KMnO with a concentration of 1 mol / L 4 solution, put the reaction vessel in a 60°C oil bath for 1 hour, centrifuge the solution to obtain a black powder, and dry it to obtain nitrogen-containing mesoporous carbon / MnO 2 Co...
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