Preparation method of soft and hard carbon composite nanomaterial
A nanomaterial and carbon composite technology, applied in the field of energy storage and energy saving, can solve the problems of complex process, incompatibility of first effect and power characteristics, high manufacturing cost, etc., to improve carbonization yield, improve electrochemical performance, and increase magnification performance effect
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Embodiment 1
[0044] The preparation method of soft and hard carbon composite nanomaterials in this embodiment is as follows:
[0045] (1) Put 15g of asphalt, 15g of purified weathered coal humic acid and 50g of sodium chloride into a ball mill tank, add 150ml of deionized water and 50ml of absolute ethanol, and then ball mill for 4 hours, and put the milled slurry into an oven Bake at 80°C for 8 hours;
[0046] (2) Place the sample obtained in step (1) in a high-temperature furnace under a nitrogen atmosphere, raise the temperature to 650°C at a rate of 3°C / min, and then keep it warm for 4 hours;
[0047] (3) Wash the sample obtained in step (1) three times with deionized water, dry it in an oven at 80°C for 4 hours, put it in a high-temperature tube furnace, raise the temperature to 1100°C at a rate of 3°C / min, and then hold it for 4 hours , and take it out after natural cooling to obtain soft and hard carbon composite nanomaterials.
Embodiment 2
[0049] The preparation method of soft and hard carbon composite nanomaterials in this embodiment is as follows:
[0050] (1) Put 15g of asphalt, 25g of purified weathered coal humic acid and 50g of sodium chloride into a ball mill tank, add 150ml of deionized water and 50ml of absolute ethanol, and then ball mill for 6 hours, and put the milled slurry into an oven Bake at 90°C for 9 hours;
[0051] (2) Place the sample obtained in step (1) in a high-temperature furnace under a nitrogen atmosphere, raise the temperature to 700°C at a rate of 4°C / min, and then keep it warm for 3 hours;
[0052] (3) Wash the sample obtained in step (1) three times with deionized water, dry it in an oven at 90°C for 4 hours, put it in a high-temperature tube furnace, raise the temperature to 1200°C at a rate of 4°C / min, and then hold it for 3 hours , and take it out after natural cooling to obtain soft and hard carbon composite nanomaterials.
Embodiment 3
[0054] The preparation method of soft and hard carbon composite nanomaterials in this embodiment is as follows:
[0055] (1) Put 25g of asphalt, 15g of purified weathered coal humic acid and 50g of sodium chloride into a ball mill tank, add 150ml of deionized water and 50ml of absolute ethanol and ball mill for 7 hours, and put the ball milled slurry into an oven Bake at 100°C for 10 hours;
[0056] (2) Place the sample obtained in step (1) in a high-temperature furnace under a nitrogen atmosphere, raise the temperature to 750°C at a rate of 4°C / min, and then keep it warm for 3 hours;
[0057] (3) Wash the sample obtained in step (1) three times with deionized water, dry it in an oven at 100°C for 4 hours, put it in a high-temperature tube furnace, raise the temperature to 1300°C at a rate of 4°C / min, and then hold it for 3 hours , and take it out after natural cooling to obtain soft and hard carbon composite nanomaterials.
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