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Poly (3,4-ethylenedioxythiophene) nano-tube array, as well as preparation method and application thereof

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

Inactive Publication Date: 2013-10-09
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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  • Poly (3,4-ethylenedioxythiophene) nano-tube array, as well as 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 poly(3,4-ethylenedioxythiophene) nano-tube array, as well as a preparation method and an application thereof. The array is poly(3,4-ethylenedioxythiophene) with nano-tubes which are sequentially arranged according to the array, and at least one end of each nano-tube is transparent, and the array is insoluble in water, transparent and conductive. The preparation method sequentially comprises the following steps of: oxidizing an anode twice to obtain an independently separated TiO2 nano-tube array; performing constant potential or constant current electro-polymerization by taking the independently separated TiO2 nano-tube array as an anode and a platinum wire as a cathode to obtain a composite material of poly(3,4-ethylenedioxythiophene) filled inside and outside the TiO2 nano-tube array; removing the TiO2 nano-tube array with hydrofluoric acid to obtain poly(3,4-ethylenedioxythiophene) with sequentially nano-tubes which are arranged according to the array. The composite material can be used as a transparent electrode material, and can be applied to the fields of organic film solar batteries, anti-static coatings, organic photoelectrons, 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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IPC IPC(8): C25D13/08C25D11/26B82Y40/00
Inventor 张延宗母康生刘燕钟建丹杨刚沈飞邓仕槐王莉淋肖鸿彭宏
Owner SICHUAN AGRI UNIV
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