Production method of nano-carbon tube

Abstract

The invention discloses a growing method of nanometer carbon pipe, which comprises the following steps: providing base; preparing nanometer catalyst solution with certain viscosity; dripping nanometer catalyst solution on the base surface through injecting device of micrometer-grade injecting needle array; forming catalyst layer; growing nanometer carbon pipe on the base surface; making catalyst drip as micrometer grade.

Description

How to grow carbon nanotubes 【Technical field】 The invention relates to a growth method of carbon nanotubes, in particular to a growth method of carbon nanotubes with simple manufacturing process, short reaction time and capable of growing fine-structured carbon nanotubes. 【Background technique】 Carbon nanotubes are a kind of tubular graphite, which was discovered by Japanese researcher Iijima in 1991, see "Helical Microtubules of Graphic Carbon", SIijima, Nature, Vol.354, P.56 (1991). Due to its excellent electrical conductivity and unidirectional thermal conductivity, it is widely used in various fields such as field emission, hydrogen storage, and light sensing elements. Currently, methods for preparing carbon nanotubes include arc discharge, laser ablation, chemical vapor deposition (CVD), and pyrolysis. Among them, the CVD method is obviously superior to other preparation methods in terms of selective control of carbon nanotube growth pattern, vertical alignment, si...

AI Technical Summary

Problems solved by technology

In this traditional method, first, the catalyst is deposited as a continuous solution layer, which cannot obtain the particle distribution required for growing carbon nanotubes, so it must be preheated to form particles, and the obtained The particles in the catalyst layer are too large to grow carbon nanotubes with a fine structure; secondly, this method must use two heating processes: one is to preheat the catalyst layer to form catalyst particles, and the other is to heat and crack hydrocarbons, which is cumbersome. And it takes a certain amount of time to change the catalyst layer into catalyst particles, resulting in a longer overall reaction time

Images