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A kind of polyethylenedioxythiophene nanotube array and preparation method and application thereof

A technology of polyethylenedioxythiophene and ethylenedioxythiophene is applied in nanotechnology, surface reaction electrolytic coating, electrophoretic plating, etc., and can solve the problem of not preparing polyethylenedioxythiophene nanotube arrays, etc. Achieve the effect of small energy gap, high photoelectric performance and high electrical conductivity

Inactive Publication Date: 2016-09-28
SICHUAN AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] At present, there is no report on the preparation of polyethylene dioxythiophene nanotube arrays

Method used

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  • A kind of polyethylenedioxythiophene nanotube array and preparation method and application thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The preparation method of polyethylene dioxythiophene nanotube array, comprises the steps:

[0033] (1) High-purity (above 99.5%) titanium sheets or titanium screens are pretreated (ultrasonic cleaning and drying in acetone, ethanol and distilled water, respectively) as anodes, and high-purity (above 99.5%) graphite rods are used as cathodes. Use 1,3 dimethylimidazolium tetrafluoroborate and water as the electrolyte, the mass ratio of water is 1%, anodize at 20V voltage, after 3 hours of reaction, rinse with deionized water to remove the residual electrolyte on the surface, use Scotch tape was used to remove the oxide film on the titanium substrate.

[0034] (2) Carry out secondary oxidation under the above conditions, rinse with deionized water to remove residual electrolyte on the surface, air-dry and calcinate in a muffle furnace at 400°C to obtain nanotubes with an inner diameter of 20nm, a wall thickness of 50nm, and a distance between the tubes 10nm, independent ...

Embodiment 2

[0038] The preparation method of polyethylene dioxythiophene nanotube array, comprises the steps:

[0039] (1) High-purity (above 99.5%) titanium sheets or titanium screens are pretreated (ultrasonic cleaning and drying in acetone, ethanol and distilled water, respectively) as anodes, and high-purity (above 99.5%) graphite rods are used as cathodes. Using 1,3 dimethylimidazolium trifluoroacetate and water as the electrolyte, the mass ratio of water is 10%, anodized at 100V voltage, after 0.5h of reaction, rinse with deionized water to remove the residual electrolyte on the surface, Remove the oxide film on the titanium substrate with scotch tape.

[0040] (2) Carry out secondary oxidation under the above conditions, rinse with deionized water to remove residual electrolyte on the surface, air-dry and calcinate in a muffle furnace at 600°C to obtain nanotubes with an inner diameter of 80nm, a wall thickness of 20nm, and a distance between the tubes 30nm, independently isolated...

Embodiment 3

[0044] The preparation method of polyethylene dioxythiophene nanotube array, comprises the steps:

[0045] (1) High-purity (above 99.5%) titanium sheets or titanium screens are pretreated (ultrasonic cleaning and drying in acetone, ethanol and distilled water, respectively) as anodes, and high-purity (above 99.5%) graphite rods are used as cathodes. Use N-butylpyridine trifluoromethanesulfonate and water as the electrolyte, the mass ratio of water is 7.5%, anodize at 60V voltage, after reacting for 1h, rinse with deionized water to remove the residual electrolyte on the surface, use a transparent Tape to remove the oxide film on the titanium substrate.

[0046] (2) Perform secondary oxidation under the above conditions, rinse with deionized water to remove residual electrolyte on the surface, air-dry and calcinate in a muffle furnace at 500°C to obtain nanotubes with an inner diameter of 40nm, a wall thickness of 30nm, and a distance between the tubes 18nm, independently isol...

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Abstract

The invention discloses a polyethylenedioxythiophene nanotube array and its preparation method and application. The array is polyethylenedioxythiophene with neatly arranged nanotubes arranged in an array. At least one end of the nanotube is Transparent, the array is insoluble in water, transparent, and conductive. The preparation method includes the following steps in sequence: secondary anodic oxidation to obtain independently separated TiO2 nanotube arrays; using the independently separated TiO2 nanotube arrays as anodes and platinum wires as cathodes, performing constant potential or constant current electropolymerization to obtain selective in The TiO2 nanotube array tube and the tube space are filled with polyethylenedioxythiophene composite material, and the TiO2 nanotube array is removed with hydrofluoric acid to obtain polyethylenedioxythiophene with neatly ordered nanotubes arranged in an array. The composite material can be used as a transparent electrode material, and can be applied in the fields of organic thin-film solar cells, antistatic coatings, organic optoelectronics, electrochromism, and solid electrolytic capacitors.

Description

technical field [0001] The invention belongs to the field of electrochemical inorganic / organic composite materials, in particular to a polyethylene dioxythiophene nanotube array. Background technique [0002] Since Shirakawa discovered that polyacetylene has high electrical conductivity, the field of conducting polymers has aroused widespread interest among scientists. [0003] In the late 1980s, German scientists at Bayer first studied a new type of thiophene derivative - polyethylene dioxythiophene, or PEDOT. The original purpose was to obtain an antistatic coating material with good environmental stability, but subsequent research showed that this polymer not only has good environmental stability, but also has high conductivity, and has been commercialized in many fields abroad. PEDOT, like conductive polypyrrole and conductive polyaniline, can be polymerized in situ by chemical oxidation to prepare the material for the cathode of a solid electrolytic capacitor, and its ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25D13/08C25D11/26B82Y40/00
Inventor 张延宗向美苏丁文文陈忠毅师丽娜王莉淋杨刚沈飞张小洪邓仕槐
Owner SICHUAN AGRI UNIV
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