TiN/TiO2 three-dimensional nanowire array with core shell structure and preparation method thereof

A core-shell structure, three-dimensional nanotechnology, applied in the field of nanostructures, achieves good electrical conductivity, is conducive to large-scale industrial production, and has the effects of controllable purity

Active Publication Date: 2016-11-09
HEFEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

As a new type of functional material, nanocomposites have shown great application potential in the fields of optics, magnetism, catalysis, and drug carriers. However, there are still many problems in the preparation and application of core-shell nanocomposites. With the theoretical research and The improvement of the preparation process, the nanocomposite material needs further research and improvement

Method used

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  • TiN/TiO2 three-dimensional nanowire array with core shell structure and preparation method thereof
  • TiN/TiO2 three-dimensional nanowire array with core shell structure and preparation method thereof
  • TiN/TiO2 three-dimensional nanowire array with core shell structure and preparation method thereof

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Embodiment 1

[0025] A TiN / TiO with a core-shell structure 2 The preparation method of the three-dimensional nanowire array, the specific steps are as follows:

[0026] (1) Place the titanium mesh in a beaker containing acetone for ultrasonic cleaning for 10 minutes, then put it into a beaker containing ethanol for ultrasonic cleaning for 10 minutes, take it out and put it in a beaker containing deionized water for ultrasonic cleaning for 10 minutes, and finally take out Put it on the filter paper to dry naturally;

[0027] (2) Put the pretreated titanium mesh into a reaction kettle with 1 mol / L NaOH solution, react in an oven at 220°C for 15 hours, take out the titanium mesh and soak it in 0.1 mol / L dilute hydrochloric acid for a period of time to make sodium The ions and hydrogen ions are fully ion exchanged, and then the titanium mesh is taken out, rinsed with deionized water, and dried naturally after rinsing;

[0028] In this step, the titanium mesh reacts with the NaOH solution to f...

Embodiment 2

[0033] A TiN / TiO with a core-shell structure 2 The preparation method of the three-dimensional nanowire array, the specific steps are as follows:

[0034] (1) Place the titanium mesh in a beaker containing acetone for ultrasonic cleaning for 10 minutes, then put it into a beaker containing ethanol for ultrasonic cleaning for 10 minutes, take it out and put it in a beaker containing deionized water for ultrasonic cleaning for 10 minutes, and finally take out Put it on the filter paper to dry naturally;

[0035] (2) Put the pretreated titanium mesh into a reaction kettle with 1 mol / L NaOH solution, react in an oven at 220°C for 15 hours, take out the titanium mesh and soak it in 0.1 mol / L dilute hydrochloric acid for a period of time to make sodium The ions and hydrogen ions are fully ion exchanged, and then the titanium mesh is taken out, rinsed with deionized water, and dried naturally after rinsing;

[0036] In this step, the titanium mesh reacts with the NaOH solution to f...

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Abstract

The invention discloses a TiN/TiO2 three-dimensional nanowire array with a core shell structure and a preparation method thereof. The method comprises the following specific steps: a pretreated Ti net is prepared with a precursor of a TiO2 nanowire array under hydrothermal conditions; then, the precursor is calcined in air to prepare a three-dimensional TiO2 nanowire array; and then, the TiN controllable deposition is performed for the surface of TiO2 by a magnetron sputtering method under high vacuum conditions to obtain a three-dimensional core shell structured TiN/TiO2 nanowire array. The diameter size of TiN/TiO2 nanowires is 40-150 nm. The preparation method has the characteristics of simplicity, stability and size and purity controllability, and facilitates large-scale industrial production.

Description

technical field [0001] The invention relates to the field of nanostructures, in particular to a TiN / TiO with a core-shell structure 2 Three-dimensional nanowire array and preparation method thereof. Background technique [0002] With the development of nanotechnology, core-shell nanocomposites have become a research hotspot in the fields of composite materials and nanomaterials. Core-shell nanocomposites are generally composed of a central core and an outer shell. The cores and shells of core-shell nanocomposites are connected to each other through physical and chemical interactions. The generalized core-shell structure includes not only nanocomposite materials with core-shell structure composed of different substances, but also nanocomposite materials such as hollow microspheres and microcapsules. Due to their unique physical and chemical properties, core-shell nanocomposites have potential applications in the fields of superhydrophobic surface coatings, materials science...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C28/04B82Y40/00
CPCB82Y40/00C23C28/042
Inventor 张勇田茶汤凯彭昊崔接武秦永强郑红梅王岩吴玉程
Owner HEFEI UNIV OF TECH
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