Method for preparing branched carbon nano tube by using dimethyl sulphide as carbon source

Abstract

The invention relates to a method for preparing a branched carbon nano tube by using dimethyl sulphide as a carbon source, and aims at providing a method for preparing the branched carbon nano tube by using the dimethyl sulphide as the carbon source, which is simple to operate, has good controllability and high yield of the branched carbon nano tube. In the method, the dimethyl sulphide is used as the carbon source; ferrocene is used as a catalyst precursor; and the dimethyl sulphide reacts with the ferrocene at high temperature to form the branched carbon nano tube. The method for preparing the branched carbon nano tube comprises the following steps of: (1) dissolving ferrocene powder into dimethyl sulphide to prepare mixed solution; (2) placing the obtained mixed solution into a container with a gas inlet pipe and a gas outlet pipe; (3) inputting hydrogen into the container through the gas inlet pipe of the container and outputting steam of the hydrogen and the mixed solution through the gas outlet pipe; and (4) inputting the steam of the hydrogen and the mixed solution, which is output from the container, and protective gas into a reaction chamber of a heating furnace together, performing a reaction at high temperature and cooling to obtain the branched carbon nano tube in the reaction chamber.

Description

Technical field [0001] The invention belongs to the technical field of preparation of inorganic nano carbon materials, in particular to a method for preparing branched carbon nanotubes by using dimethyl sulfide as a carbon source. Background technique [0002] Since the discovery of carbon nanotubes in the early 1990s, carbon nanotubes have attracted the attention of people from all walks of life around the world due to their excellent electrical, mechanical, thermal, physical and chemical properties. They have become microelectronics, materials science, physics and biology. Research hotspots in medical and other disciplines have broad application prospects. Carbon nanotubes are considered to be one of the most promising materials for constructing nanodevices. They can be used as field emission transistors, gas sensors, scanning probe microscope tips, transporters, hydrogen storage materials, field emission nanodevices, etc. Since the discovery of carbon nanotubes, more and more...

AI Technical Summary

Problems solved by technology

The carbon source precursors commonly used in this method are: methane, acetylene, toluene, ethanol, and thiophene. Although these methods can achieve the growth of branched carbon nanotubes, there are many defects and deficiencies in the preparation process. For example, the preparation process Long, complex equipment, difficult to control, high cost, low yield of branched carbon nanotubes, etc.

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