Large-area ultra-thin carbon nanotube film and its preparation process
A carbon nanotube film and carbon nanotube technology, which is applied in the synthesis and application of carbon nanomaterials, can solve the problems of difficulty in forming continuous thin films and performance degradation, and achieve the effect of less environmental pollution and simple process operation
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example 1
[0033] Example 1: Taking the double-walled carbon nanotube film as an example, an alcohol solution is used as a spreading agent and collected with a silicon wafer. The specific steps are:
[0034] 1) Weigh 0.25 g of a mixture of ferrocene and sulfur with a molar ratio of 10:1 and dissolve it in 10 ml of xylene solution to prepare a reaction solution.
[0035] 2) Raise the temperature of the horizontal reaction chamber to 1150°C, feed 2000mL / min of argon and 400mL / min of hydrogen, and send the reaction solution into the reaction chamber at a rate of 0.1mL / min. The black carbon nanotube film produced in the reaction zone drifts out with the airflow and is deposited at the back end of the reaction chamber.
[0036] 3) After the reaction is over, stop feeding the reaction solution, stop feeding hydrogen and reduce the flow rate of argon, and cool the reaction chamber to room temperature.
[0037] 4) Take out the black double-walled carbon nanotube macroscopic body from the reacti...
example 2
[0046] Example 2: Taking the single-walled carbon nanotube film as an example, using acetone solution as the spreading agent and collecting it with a quartz ring, the specific steps are:
[0047] 1) Weigh 0.05 g of a mixture of ferrocene and sulfur with a molar ratio of 100:5 and dissolve it in 10 ml of n-hexane solution to prepare a reaction solution.
[0048] 2) Raise the temperature of the horizontal reaction chamber to 1200°C, feed 3000mL / min of argon and 1000mL / min of hydrogen, and send the reaction solution into the reaction chamber at a rate of 0.05mL / min. The black carbon nanotube film produced in the reaction zone drifts out with the airflow and is deposited at the back end of the reaction chamber.
[0049] 3) After the reaction is over, stop feeding the reaction solution, stop feeding hydrogen and reduce the flow rate of argon, and cool the reaction chamber to room temperature.
[0050] 4) Take out the black single-walled carbon nanotube macroscopic body from the re...
example 3
[0057] Example 3: Taking the multi-walled carbon nanotube film as an example, using alcohol as a spreading agent and collecting it with a metal substrate, the specific steps are:
[0058] 1) Weigh 0.3 g of a mixture of ferrocene and sulfur with a molar ratio of 10:25 and dissolve it in 10 ml of benzene solution to prepare a reaction solution.
[0059] 2) Raise the temperature of the horizontal reaction chamber to 900°C, feed 500mL / min of argon and 200mL / min of hydrogen, and send the reaction solution into the reaction chamber at a rate of 0.3mL / min. The black carbon nanotube film produced in the reaction zone drifts out with the airflow and is deposited at the back end of the reaction chamber.
[0060] 3) After the reaction is over, stop feeding the reaction solution, stop feeding hydrogen and reduce the flow rate of argon, and cool the reaction chamber to room temperature.
[0061] 4) Taking out the multi-walled carbon nanotube macroscopic body from the reaction chamber.
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