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Boron-nitrogen co-doped carbon nanotube film and preparation method and application thereof

A technology of carbon nanotube film and carbon nanotube, which is applied in the direction of nanotechnology, nanotechnology, nanotechnology, etc. for materials and surface science, can solve the problems of inability to achieve large-scale, complex and cumbersome synthesis process, etc., and achieve the goal of improving electrical Chemical properties and structural stability, simple process, good self-supporting effect

Inactive Publication Date: 2020-03-03
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are few reports on the preparation of boron-nitrogen co-doped carbon nanotubes, and most of the synthesis processes are complicated and cumbersome, and cannot be scaled up. Therefore, there is an urgent need for a simple and effective one-step synthesis method that can simultaneously introduce boron and nitrogen sources.

Method used

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  • Boron-nitrogen co-doped carbon nanotube film and preparation method and application thereof
  • Boron-nitrogen co-doped carbon nanotube film and preparation method and application thereof
  • Boron-nitrogen co-doped carbon nanotube film and preparation method and application thereof

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Effect test

Embodiment 1

[0033] (1) Completely seal the vertical CVD furnace, continuously feed 100 sccm of Ar to remove the air in the furnace, then raise the temperature of the vertical CVD furnace to 1150°C through the temperature controller, and keep it warm for 3 hours to prepare the subsequent carbon nanotube film The growth provides a constant temperature environment;

[0034] (2) Weigh ethanol, ferrocene, thiophene according to the mass ratio of 95:1.5:1, be mixed into solution, wherein ethanol is as carbon source, ferrocene is as catalyst, and thiophene is as promotor; Then on the basis of above-mentioned mixed solution Add 4wt.% pyridine as the nitrogen source for the reaction, and disperse the above solution by ultrasonic for 30 minutes at a temperature of 50°C to obtain a uniform dispersion and transfer it to a syringe as a precursor solution;

[0035] (3) After steps (1) and (2) are completed, turn off the inert gas and continuously feed 800 sccm of H 2 As a reagent gas up to H 2 Fill t...

Embodiment 2

[0038] (1) Completely seal the vertical CVD furnace, continuously feed 100 sccm of Ar to remove the air in the furnace, then raise the temperature of the vertical CVD furnace to 1150°C through the temperature controller, and keep it warm for 3 hours to prepare the subsequent carbon nanotube film The growth provides a constant temperature environment;

[0039] (2) Weigh ethanol, ferrocene, thiophene according to the mass ratio of 95:1.5:1, be mixed into solution, wherein ethanol is as carbon source, ferrocene is as catalyst, and thiophene is as promotor; Then on the basis of above-mentioned mixed solution Add 4wt.% of pyridine and 2wt.% of boric acid as the nitrogen source and boron source of the reaction respectively, and disperse the above solution by ultrasonic for 30min at a temperature of 50°C to obtain a uniform dispersion and transfer it to a syringe as a pre- body solution;

[0040] (3) After steps (1) and (2) are completed, turn off the inert gas and continuously feed...

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Abstract

The invention discloses a boron-nitrogen co-doped carbon nanotube film and a preparation method and application thereof. The preparation method comprises the following steps of: 1) weighing ethanol, ferrocene and thiophene according to a mass ratio of (90-100): (1.3-1.7): (0.5-1.5) to obtain a mixed solution, adding 1-3wt% of boric acid and 2-4wt% of pyridine into the mixed solution, and uniformlydispersing at 40-60 DEG C to obtain a precursor solution, 2) completely sealing a CVD furnace, continuously introducing inert gas to remove air in the furnace, adjusting the temperature of the CVD furnace to 1100-1200 DEG C, and keeping the temperature for 2-5 hours to provide a constant-temperature environment for subsequent growth of the carbon nanotube film, 3) closing the inert gas, continuously introducing H2 as a reaction gas until the whole hearth is filled with H2, injecting the precursor solution obtained in the step 1 into the furnace at a liquid injection rate of 3-8 mL / h by virtueof an ultrasonic atomization device in a uniformly dispersed vaporific droplet manner, and collecting the boron-nitrogen co-doped carbon nanotube film at the bottom of the hearth after 10-30min. Andthe mass specific capacitance of the film is 130-150 F.g<-1>.

Description

technical field [0001] The invention relates to the technical field of carbon nanotube-based films, in particular to a carbon nanotube film co-doped with boron and nitrogen, a preparation method and application thereof. Background technique [0002] Due to its unique electronic characteristics and surface microstructure, carbon nanotubes have small ion embedding depth, short travel and multiple embedding positions, and have good ion and electron transport capabilities. Heteroatom doping of carbon nanotubes, such as boron and nitrogen, can effectively control the crystal and electronic structure of carbon nanotubes and improve the physical and chemical properties of carbon nanotubes. Among them, the radius of nitrogen atoms is close to that of carbon atoms, and the lattice distortion of carbon nanotubes after doping is small. The introduction of nitrogen provides carbon nanotubes with a free electron as a carrier, thereby improving its conductivity. At the same time, the con...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L21/02B82Y30/00
CPCH01L21/02527H01L21/0262H01L21/02584B82Y30/00
Inventor 侯峰王磊郭文磊
Owner TIANJIN UNIV
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