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Method for preparing one-dimensional self-assembly material with ZnO nanorod array as template

A nanorod array and self-assembly technology, applied in nanotechnology, chemical instruments and methods, inorganic chemistry, etc., can solve problems such as film orientation and structural damage

Active Publication Date: 2012-04-18
PEKING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] However, although the film synthesized by this traditional template method can obtain a uniform orientation, it often requires necessary steps such as removing the template and transferring the film to the target surface in the subsequent process.
In fact, during the process of stencil removal and film transfer, the orientation and structure of the film are easily damaged

Method used

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  • Method for preparing one-dimensional self-assembly material with ZnO nanorod array as template
  • Method for preparing one-dimensional self-assembly material with ZnO nanorod array as template
  • Method for preparing one-dimensional self-assembly material with ZnO nanorod array as template

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Experimental program
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Effect test

Embodiment 1

[0035] Embodiment 1: Preparation of zinc oxide nanorod array

[0036] The ZnO nanorod array with consistent orientation was prepared by traditional hydrothermal method. The specific method is as follows:

[0037] 1. Prepare 15ml each of 0.1M zinc nitrate and 0.1M hexamethylenetetramine solutions, and set aside;

[0038] 2. Add zinc nitrate and hexamethylenetetramine into a 50ml polytetrafluoroethylene hydrothermal kettle, and insert a cleaned substrate such as ITO glass or cordierite into the reaction solution at an angle of 45 degrees, and 95°C water Thermal reaction 4h.

[0039] 3. The scanning electron microscope photos of the prepared ZnO nanorod arrays are shown in figure 1 , as shown in the figure, the ZnO nanorods have a hexagonal columnar structure with a uniform growth orientation and an average diameter of 200 nm.

Embodiment 2

[0040] Example 2: Cerium Oxide Nanotube Arrays

[0041] 1. Preparation method: Immerse the zinc oxide nanorod array prepared in Example 1 into a 0.1M cerium nitrate solution, and conduct a hydrothermal reaction at a constant temperature of 95°C for 2 hours to obtain a cerium oxide nanorod with similar size and density as the zinc oxide nanorod array. tube array.

[0042] 2. The obtained cerium oxide: the scanning electron microscope photo of the prepared cerium oxide nanotube array is shown in figure 2 , as shown, the cerium oxide tubular structures have similar orientation and density to the ZnO nanorod arrays.

Embodiment 3

[0043] Embodiment 3: cobalt oxide nanotube array

[0044]1. Preparation method: immerse the zinc oxide nanorod array synthesized in Example 1 into a 0.16M cobalt nitrate solution, and conduct a hydrothermal reaction at 95° C. for 3 hours to obtain the cobalt oxide nanotube array.

[0045] 2. Obtained cobalt oxide: the scanning electron microscope photo of the prepared cobalt oxide nanotube array is shown in image 3 , image 3 As shown, the substrate is evenly distributed with a tubular array structure of cobalt oxide with uniform orientation.

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Abstract

The invention relates to a method for preparing a one-dimensional self-assembly material with a ZnO nanorod array as a template. The method comprises the following steps: the ZnO nanorod array which is used as the template is immersed in a nitrate solution of a transition metal or a rare earth metal, and the ZnO nanorod array undergoes a hydrothermal reaction at 90-200DEG C. Compared with synthetic methods with other templates, the hydrothermal synthetic method with the ZnO nanorod array as the template has the advantages of simple technology, suitableness of the large area preparation and omission of a template removal step, so a difficulty that the film structure can be easily destroyed in the template removal process of the synthetic methods with other templates is solved.

Description

technical field [0001] The invention relates to the field of material preparation, in particular to a method for directly preparing a self-assembled functional material with a regular geometric shape on a target substrate using zinc oxide as a template. Background technique [0002] Self-assembly refers to a technology in which the basic structural unit molecules, nanomaterials, and substances on a micron or larger scale spontaneously form an ordered structure, so as to obtain nanomaterial aggregates of various scales and regular geometric appearances, and it is expected to achieve different Excellent physical and chemical properties of the monomer. Using nanomaterials as units to self-assemble them into various hierarchical and ordered structures is a research hotspot that has just emerged in recent years. The nanoscale is the mesoscopic level between macroscopic objects and microscopic molecules, and has extraordinary optical and electrical properties. , magnetism, mechan...

Claims

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Application Information

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IPC IPC(8): C01G9/02C01F17/00C01G51/04B82Y40/00
Inventor 王习东冯英杰张作泰刘丽丽
Owner PEKING UNIV
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