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Production method of high-index crystal face constrained zinc oxide nano-ribbons

A zinc oxide nanometer and high-index crystal surface technology, which is applied in the direction of zinc oxide/zinc hydroxide, nanotechnology, etc., can solve the problems of strict atmosphere conditions, impure shape, and difficult control of hydrothermal process parameters, etc., to achieve The effect of low cost, simple process and easy operation

Inactive Publication Date: 2017-12-19
HUAIYIN INSTITUTE OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the process parameters of the hydrothermal method are not easy to control, and the morphology of the product is impure, including nanowires and nanobelts; the sol-gel method is a porous polycrystalline ZnO nanobelt formed by self-organization of single crystal nanoparticles; physical thermal evaporation The reaction temperature of the method is higher than 1000°C and the atmosphere conditions are strict

Method used

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  • Production method of high-index crystal face constrained zinc oxide nano-ribbons
  • Production method of high-index crystal face constrained zinc oxide nano-ribbons
  • Production method of high-index crystal face constrained zinc oxide nano-ribbons

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Experimental program
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Effect test

Embodiment 1

[0036] A preparation method for high-index crystal plane confined zinc oxide nanoribbons, comprising the following steps:

[0037] (a) uniformly mixing zinc oxide and activated carbon powder according to a mass ratio of 1:1 to obtain raw material powder;

[0038] (b) Making the substrate: coating the surface of the silicon wafer with a layer of gold with a thickness of 10 nm as a catalyst to prepare a substrate as a growth substrate;

[0039] (c) Put the raw material powder processed in step (a) in the middle of the clay boat, and then buckle the substrate with the gold-plated side facing the direction of the raw material powder directly above the boat;

[0040] (d) Push the clay boat treated in step (c) smoothly to the high-temperature zone in the middle of the air-intake-solid reaction furnace, slightly biased towards the air-intake direction;

[0041] (e) Evacuate the vacuum in the gas-solid reaction furnace to below 231Torr;

[0042] (f) Gradually increase the temperatur...

Embodiment 2

[0045] A preparation method for high-index crystal plane confined zinc oxide nanoribbons, comprising the following steps:

[0046] (a) uniformly mixing zinc oxide and activated carbon powder according to a mass ratio of 1:1 to obtain raw material powder;

[0047] (b) Making the substrate: coating the surface of the silicon wafer with a layer of gold with a thickness of 12nm as a catalyst to prepare the substrate as the growth substrate;

[0048] (c) Put the raw material powder processed in step (a) in the middle of the clay boat, and then buckle the substrate with the gold-plated side facing the direction of the raw material powder directly above the boat;

[0049] (d) Push the clay boat treated in step (c) smoothly to the high-temperature zone in the middle of the air-intake-solid reaction furnace, slightly biased towards the air-intake direction;

[0050] (e) Pump the vacuum in the gas-solid reaction furnace below 300 Torr;

[0051] (f) Gradually increase the temperature i...

Embodiment 3

[0054] A preparation method for high-index crystal plane confined zinc oxide nanoribbons, comprising the following steps:

[0055] (a) uniformly mixing zinc oxide and activated carbon powder according to a mass ratio of 1:1 to obtain raw material powder;

[0056] (b) Making the substrate: coating the surface of the silicon wafer with a layer of gold with a thickness of 11 nm as a catalyst to prepare a substrate as a growth substrate;

[0057] (c) Put the raw material powder processed in step (a) in the middle of the clay boat, and then buckle the substrate with the gold-plated side facing the direction of the raw material powder directly above the boat;

[0058] (d) Push the clay boat treated in step (c) smoothly to the high-temperature zone in the middle of the air-intake-solid reaction furnace, slightly biased towards the air-intake direction;

[0059] (e) Evacuate the vacuum in the gas-solid reaction furnace to below 231Torr;

[0060] (f) Gradually increase the temperatur...

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Abstract

The invention discloses a production method of high-index crystal face constrained zinc oxide nano-ribbons. The method comprises the following steps: 1, uniformly mixing zinc oxide with active carbon powder to prepare raw material powder; 2, coating the surface of a silicon chip with a layer of a catalyst substrate; 3, placing the raw material powder on a small clay boat, and placing the substrate on the small clay boat; 4, stably pushing the small clay boat into a high temperature area in a gas-solid reaction furnace; 5, vacuating the gas-solid reaction furnace; 6, gradually rising the temperature in the gas-solid reaction furnace, introducing an inert gas in the heating process, and then introducing oxygen during the heating; and 7, keeping the temperature in the gas-solid reaction furnace constant to make the zinc oxide become the zinc oxide nano-ribbons on the substrate. The production method of the nano-ribbons has the advantages of simple process, low cost, and easiness in operation, and the obtained nano-ribbons have obvious high-index crystal faces.

Description

technical field [0001] The invention relates to a preparation method and application research field of a nanobelt, in particular to a preparation method of a zinc oxide nanobelt constrained by a high-index crystal plane. Background technique [0002] Zinc oxide (ZnO) is a semiconductor functional material with a wide range of uses. Its crystal structure belongs to the hexagonal wurtzite structure. At room temperature, the band gap is 3.37eV. Due to its small size and huge surface area, nano-zinc oxide has the characteristics of surface effect, small size effect and macroscopic quantum tunneling effect compared with ZnO bulk materials. ZnO nanoribbons have a large surface area due to their planar structure and rectangular cross-sectional area, and are very sensitive to changes in surface chemistry. In recent years, it has been found that it has good and sensitive detection of ultraviolet rays, infrared rays, sterilization, catalysis, and functions as material additives. It h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G9/03B82Y40/00
CPCC01G9/03B82Y40/00C01P2002/72C01P2004/03C01P2004/17
Inventor 孙丽刘永臣江诚明华金科
Owner HUAIYIN INSTITUTE OF TECHNOLOGY
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