Preparation method of nano carbon fiber film

Abstract

The invention discloses a preparation method of a nano carbon fiber film, the reparation method uses an anodic oxidation method for preparation of porous anodic alumina, the oxidation time is 2-8h, the temperature is 10-15 DEG C, the voltage is 40V, the pore size of the prepared alumina is in the range of 50-80nm, 3%-5% phosphoric acid is used for reaming processing of the prepared porous alumina, copper sulfate is used as an electroplating solution, under 10-15V alternating voltage, the porous alumina and a carbon rod are used as counter electrodes for electrodeposition preparation of copper nanowires, the deposition time is 0.5-3 H, and the prepared copper nanowire diameter is 50-80nm. The anodic alumina is used as a template, the copper nanowires deposited in holes of the template are used as a catalyst, and acetylene is used as a carbon source for chemical vapor deposition preparation of the nano carbon fiber film in a tube furnace at 250-300 DEG C, the reparation method has the characteristics of simple operation, controllable conditions, vapor deposition temperature and the like, the prepared nano carbon fiber film is uniform in diameter, comprises spiral and linear fibers, is free of removing the catalyst, and has the advantages of high purity, easy transfer and the like.

Description

technical field [0001] The invention relates to the technical field of nanomaterials, in particular to a method for preparing a nanocarbon fiber film. Background technique [0002] Stepping into the 21st century, the competition among countries in the world in the fields of military, energy and science and technology is intensifying, especially in the field of science and technology. The research and development of new materials and new technologies has become the direction that countries are striving to develop first. As a nano-carbon fiber with high strength, high modulus, high electrical conductivity, high thermal conductivity, low density, and corrosion resistance, it is the fastest-growing new material in the past ten years, and is known as the comprehensive performance of materials in the world today. The pinnacle of this is the black revolution of the 21st century. In 1991, Professor Iijima, an electron microscope expert at the basic research laboratory of NEC Corpo...

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Problems solved by technology

[0004] The catalysts used in the above reports are all particles or thin films, and the catalysts are closely combined with carbon nanofibers, requiring purification, and the experimental steps are complicated.

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