High length-diameter ratio titania nanometer tube array preparation method

A technology of nanotube array and high aspect ratio, which is applied in nanostructure manufacturing, nanotechnology, nanotechnology, etc., can solve the problems of long anodic oxidation time, achieve uniform distribution, increase electrochemical reaction speed, and fast growth rate Effect
CN1884630AInactive Publication Date: 2006-12-27XIAMEN UNIV
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
XIAMEN UNIV
Publication Date
2006-12-27
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The preparation method of high aspect ratio titanium dioxide nanotube array. It uses new electrolyte that contains fluorin. By electrochemistry anodization method, it coats high aspect ratio TiO2 nanotube array on surface of metal titanium. The substrate is polished and cleaned. The solute of electrolyte is fluorid and supporting electrolyte, then adds alcohol additives. According to the weight %, the content of fluorid is 0.1% - 1% of total electrolyte; the content of supporting electrolyte is 0.4% - 4% of total electrolyte; the content of alcohol additives is 0% - 90% of total electrolyte, the remains are solvent. The metal plate can be used as electrode to anodizate. Then high aspect ratio TiO2 nanotube array film can be generated on surface of substrate.
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Description

technical field

[0001] The present invention relates to a kind of titanium dioxide (TiO 2 ) nanotube arrays, especially involving the use of a new fluorine-containing electrolyte solution to construct TiO with a high aspect ratio on the surface of titanium metal by electrochemical anodic oxidation. 2 Methods for nanotube arrays. Background technique

[0002] Nano-TiO 2 It is an important inorganic functional material. Due to its advantages of moisture sensitivity, gas sensitivity, dielectric effect, photoelectric conversion and superior photocatalytic performance, it is used in sensors, dielectric materials, self-cleaning materials, solar cells and photocatalytic degradation. Pollutants and other high-tech fields have important application prospects, and have become a hot research topic at home and abroad. In 2001, American scientist Varghese used the electrochemical anodic oxidation method to prepare TiO for the first time in HF aqueous solution. 2 Nanotube array materi...

Claims

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