A kind of helical nano carbon fiber/tio 2 Composite materials and their applications
A nano-carbon fiber and composite material technology, applied in the direction of hybrid capacitor electrodes, etc., can solve the problems of low energy density, small specific surface area of electrode materials, poor interface bonding force of composite electrodes, etc., to increase specific surface area, improve effective contact area, improve The effect of binding capacity
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Embodiment 1
[0036] 1) Weigh 0.2 g of copper tartrate trihydrate and place it in a quartz boat, flatten it evenly, and place it in the heating tube of the device, then pass argon gas to remove the air in the tube, and heat it up to 480 °C at 5 °C / min. , and then pass acetylene at a flow rate of 80 ml / min, and keep it for 2h. After the reaction was completed, the acetylene was turned off, argon gas was introduced for protection, cooled to room temperature with the furnace, and the sample was taken out to obtain the helical carbon nanofibers.
[0037] 2) Take 3 g of the helical carbon nanofibers (HCNFs) prepared in step 1) and add it to a concentrated nitric acid solution with a mass fraction of 68%, in a water bath sonicator, sonicate at 40KHz for 2h, then add a large amount of distilled water, and then pass through the sand core. The funnel was filtered and repeatedly washed with ethanol solution until the supernatant became neutral (pH=7). Finally, the product was vacuum-dried in an oven ...
Embodiment 2
[0041] 1) Weigh 0.2 g of copper tartrate trihydrate and place it in a quartz boat, flatten it evenly, place it in the heating tube of the device, then pass argon gas to remove the air in the tube, and heat it up to 480 °C at 5 °C / min. , turn off the argon, then pass acetylene at a flow rate of 100ml / min, and keep it for 2h. After the reaction was completed, the acetylene was turned off, argon gas was introduced, cooled to room temperature with the furnace, and the sample was taken out to obtain helical carbon nanofibers (HCNFs).
[0042] 2) Take 3 g of the helical carbon nanofibers (HCNFs) prepared in step 1) and add it to a concentrated nitric acid solution with a mass fraction of 68%, in a water bath sonicator, sonicate at 40KHz for 2h, then add a large amount of distilled water, and then pass through the sand core. The funnel was filtered and repeatedly washed with ethanol solution until the supernatant was neutral (pH=7). Finally, the product was vacuum-dried in an oven at...
Embodiment 3
[0046] 1) Weigh 0.2 g of copper tartrate trihydrate and place it in a quartz boat, flatten it evenly, and place it in the heating tube of the device, then pass argon gas to remove the air in the tube, and heat it up to 480 °C at 5 °C / min. , turn off the argon, then pass acetylene at a flow rate of 100ml / min, and keep it for 2h. After the reaction was completed, the acetylene was turned off, argon gas was introduced for protection, cooled to room temperature with the furnace, and the sample was taken out to obtain the helical carbon nanofibers.
[0047] 2) Take 3 g of the helical carbon nanofibers (HCNFs) prepared in step 1) and add it to a concentrated nitric acid solution with a mass fraction of 68%, in a water bath sonicator, sonicate at 40KHz for 2h, then add a large amount of distilled water, and then pass through the sand core. The funnel was filtered and repeatedly washed with ethanol solution until the supernatant became neutral (pH=7). Finally, the product was vacuum-d...
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