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Coaxial heterogeneous ceric dioxide nanotube-titanium dioxide nanotube array thin film

A nanotube array, ceria technology, applied in chemical instruments and methods, crystal growth, single crystal growth, etc., to achieve the effect of excellent semiconductor characteristics and sensitive performance

Inactive Publication Date: 2011-12-28
SHANDONG JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, no coaxial heterogeneous CeO has been found after searching. 2 Nanotube-TiO 2 Report on Nanotube Array Thin Films

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Machine the titanium foil into a sheet of 10mm×20mm, use 240 # 、360 # 、500 # , 800 # , 1500 # Pre-grinding with sandpaper, and then mechanically polishing with diamond polishing paste with a particle size of 1.0, followed by ultrasonic degreasing in ethanol and acetone for 3 minutes, rinsing with deionized water, and drying; the treated titanium foil is used as the anode , with a platinum sheet as the cathode, containing 0.3wt% NH 4 F and 2vol%H 2 The ethylene glycol solution of O is the electrolyte, and the electrochemical reaction is carried out at room temperature and magnetically stirred; among them: the electrode distance is 30mm, the voltage is 20V, and the anodic oxidation time is 12 hours; rinse with deionized water to generate TiO 2 The anode of the nanotube array - titanium foil, after drying, immerse in a 0.8mol / L hydrochloric acid solution and sonicate for 0.5 hours to dissolve TiO 2 Nanotubes; use the anode—titanium foil as the anode again, and then u...

Embodiment 2

[0026] Machine the titanium foil into a sheet of 10mm×20mm, use 240 # 、360 # , 800 # , 1200 # Pre-grinding with sandpaper, and then mechanically polishing with diamond polishing paste with a particle size of 1.0, followed by ultrasonic degreasing in ethanol and acetone for 5 minutes, rinsing with deionized water, and drying; the treated titanium foil is used as the anode , with a platinum sheet as the cathode, containing 0.4wt% NH 4 F and 3vol%H 2 The ethylene glycol solution of O is the electrolyte, and the electrochemical reaction is carried out at room temperature and magnetically stirred; among them: the electrode spacing is 30mm, the voltage is 40V, and the anodic oxidation time is 17 hours; rinse with deionized water to generate TiO 2 The anode of the nanotube array - titanium foil, after drying, immerse in a 1.0mol / L hydrochloric acid solution and sonicate for 0.5 hours to dissolve TiO 2 Nanotubes; use the anode—titanium foil as the anode again, and then use the sa...

Embodiment 3

[0029] Machine the titanium foil into a sheet of 10mm×20mm, use 240 # 、500 # , 800 # , 1500 # Pre-grinding with sandpaper, and then mechanically polishing with diamond polishing paste with a particle size of 1.0, followed by ultrasonic degreasing in ethanol and acetone for 4 minutes, rinsing with deionized water, and drying; the treated titanium foil is used as the anode , with a platinum sheet as the cathode, containing 0.5wt% NH 4 F and 5vol%H 2 The ethylene glycol solution of O is the electrolyte, and the electrochemical reaction is carried out at room temperature and under magnetic stirring; among them: the electrode distance is 30mm, the voltage is 30V, and the anodic oxidation time is 24 hours; rinse with deionized water to generate TiO 2 The anode of the nanotube array - titanium foil, after drying, immerse in a 1.2mol / L hydrochloric acid solution and sonicate for 0.8 hours to dissolve TiO 2 Nanotubes; use the anode—titanium foil as the anode again, and then use th...

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Abstract

The invention discloses a coaxial heterogeneous ceric dioxide nanotube-titanium dioxide nanotube array thin film and a preparation method thereof. The thin film disclosed by the invention has a unique nano composite tube structure characteristic; the thickness of the thin film, the diameter of outer tubes and the diameter of inner tubes can be controlled freely according to functional needs; and the thin film has an excellent semiconductor characteristic and high sensitivity, and can be mainly used in fields of oxygen sensors, photoelectric nano elements and the like.

Description

technical field [0001] The invention belongs to the technical field of inorganic semiconductor nanometer materials, and relates to a coaxial heterogeneous double tube: ceria nanotube-titanium dioxide nanotube array film and a preparation method thereof. Background technique [0002] Ordered TiO 2 Nanotube array films have become one of the hotspots in nanomaterials research because of their excellent photoelectric, catalytic and sensing properties. Because this material and powder nano TiO 2 Compared with thin films, they have larger specific surface area and stronger adsorption capacity, and their potential application fields are also broader. At present, many scientific research institutions have carried out their application research in many fields such as sensitive devices, photocatalysis, and biological materials. [0003] TiO 2 The nanotube structure has an ordered array structure, and the application of this material can improve the transport lifetime of photogener...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25D11/26C30B30/02C30B29/16C30B29/62
Inventor 庞来学史红唐新德张金升
Owner SHANDONG JIAOTONG UNIV
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