A method for surface modification of carbon cloth for flexible supercapacitor electrodes
A supercapacitor and surface modification technology, which is applied in the manufacture of hybrid capacitor electrodes and hybrid/electric double layer capacitors. , low cost, easy to promote the effect of industrialization
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Embodiment 1
[0037] The invention provides a carbon cloth surface modification method for flexible supercapacitor electrodes, comprising the following steps:
[0038] S1: Dissolve 3g of potassium permanganate in the mixed acid of 20ml of concentrated sulfuric acid and 10ml of concentrated nitric acid to form a uniform mixed solution, place carbon in the mixed solution, keep the temperature at 5°C for 3 hours, add 100ml of deionized water, Keep the temperature at 25°C for 5 hours, add 5ml of hydrogen peroxide to prepare carbon oxide cloth; then wash the carbon oxide cloth with deionized water first and then with ethanol, and repeat the above washing steps for 3 times until the washing liquid is neutral. Finally, dry the carbon dioxide at 60°C for 15 hours;
[0039] S2: Weigh 1g of dried carbon oxide cloth and 5g of sodium amide and place them in an iron crucible. Under the protection of nitrogen atmosphere, heat to 320°C at a heating rate of 3°C / min, keep it warm for 5h, and use it after na...
Embodiment 2
[0057] The invention provides a carbon cloth surface modification method for flexible supercapacitor electrodes, comprising the following steps:
[0058] S1: Dissolve 3g of potassium permanganate in the mixed acid of 20ml of concentrated sulfuric acid and 10ml of concentrated nitric acid to form a uniform mixed solution, place carbon in the mixed solution, keep the temperature at 0°C for 3 hours, add 100ml of deionized water, Keep the temperature at 25°C for 5 hours, add 5ml of hydrogen peroxide to prepare carbon oxide cloth; then wash the carbon oxide cloth with deionized water first and then with ethanol, and repeat the above washing steps for 3 times until the washing liquid is neutral. Finally, dry the carbon dioxide at 60°C for 15 hours;
[0059] S2: Weigh 1g of dried carbon oxide cloth and 5g of sodium amide and place them in an iron crucible. Under the protection of nitrogen atmosphere, heat to 300°C at a heating rate of 2°C / min, keep it warm for 6h, and use it after na...
Embodiment 3
[0062] The invention provides a carbon cloth surface modification method for flexible supercapacitor electrodes, comprising the following steps:
[0063] S1: Dissolve 3g of potassium permanganate in the mixed acid of 20ml of concentrated sulfuric acid and 10ml of concentrated nitric acid to form a uniform mixed solution, place carbon in the mixed solution, keep the temperature at 10°C for 2 hours, add 100ml of deionized water, Keep the temperature at 30°C for 3 hours, add 5ml of hydrogen peroxide to prepare carbon oxide cloth; then wash the carbon oxide cloth with deionized water first and then with ethanol, and repeat the above washing steps for 3 times until the washing liquid is neutral. Finally, dry the carbon dioxide at 70°C for 10 hours;
[0064] S2: Weigh 1g of dried carbon oxide cloth and 5g of sodium amide and place them in an iron crucible. Under the protection of nitrogen atmosphere, heat to 350°C at a heating rate of 4°C / min, keep it for 4h, and use it after natura...
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