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Production method for aluminum-doped zinc oxide nanometer material

A technology of aluminum-doped zinc oxide and nanomaterials, which is applied in the field of production of porous grid rod-shaped self-assembled aluminum-doped zinc oxide nanomaterials, which can solve complex operations, need for reaction equipment, and limit the large-scale application of zinc oxide nanomaterials, etc. problems, to achieve the effect of high specific surface area and developed pore structure

Active Publication Date: 2012-08-01
JILIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above-mentioned methods are complicated to operate, difficult to control, high in energy consumption, and require expensive reaction equipment, thus limiting the large-scale application of zinc oxide nanomaterials

Method used

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  • Production method for aluminum-doped zinc oxide nanometer material
  • Production method for aluminum-doped zinc oxide nanometer material
  • Production method for aluminum-doped zinc oxide nanometer material

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0018] Put zinc nitrate, aluminum nitrate and citric acid into a beaker, wherein the molar ratio of nitrate to citric acid is 0.8, and the aluminum content is 1.0 at%, add an appropriate amount of deionized water, stir to fully dissolve, and then place at a constant temperature Continue heating and stirring on the magnetic stirrer, and control the temperature of the solution between 60°C and 70°C; when the solution forms a sol, control the temperature of the sol at about 80°C until a light yellow gel is formed, then stop heating and stirring; Put the beaker containing the gel into an oven preheated to 180°C for 4 hours, wait for it to cool down to room temperature naturally, and take out the fluffy precursor powder; place the precursor in a box-type resistance furnace at 5°C / The temperature was raised to 800°C at a rate of 1 min, held for 2 hours, and then naturally cooled to room temperature to obtain porous grid rod-shaped aluminum-doped ZnO nanomaterials.

example 2

[0020] Put zinc nitrate, aluminum nitrate and citric acid into a beaker, wherein the molar ratio of nitrate to citric acid is 1.0, and the aluminum content is 1.0 at%, add an appropriate amount of deionized water, stir to fully dissolve, and then place at constant temperature Continue heating and stirring on the magnetic stirrer, and control the temperature of the solution at 60°C to 70°C; when the solution forms a sol, control the temperature of the solution at 80°C until a light yellow gel is formed, then stop heating and stirring; Place the beaker of glue in an oven preheated to 180°C and heat it for 5 hours, and wait for it to cool naturally to room temperature to obtain a fluffy precursor powder; place the precursor in a box-type resistance furnace and heat up at a rate of 5°C / min to 800° C., heat preservation for 3 hours, and then naturally cool to room temperature to obtain porous grid rod-shaped aluminum-doped zinc oxide nanomaterials.

example 3

[0022] Put zinc nitrate, aluminum nitrate and citric acid into a beaker, wherein the molar ratio of nitrate to citric acid is 1.0, and the aluminum content is 1.5 at%, add an appropriate amount of deionized water, stir to fully dissolve, and then place at a constant temperature Continue heating and stirring on the magnetic stirrer, and control the temperature of the solution at 60°C to 70°C; when the solution forms a sol, control the temperature of the solution at 80°C until a light yellow gel is formed, then stop heating and stirring; Put the beaker of the gel into an oven preheated to 180°C for 3 hours, wait for it to cool naturally to room temperature, take out the fluffy precursor powder; The temperature was raised to 700° C., kept at a temperature of 2 hours, and then naturally cooled to room temperature to obtain porous grid rod-shaped aluminum-doped zinc oxide nanomaterials.

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Abstract

The invention discloses a production method for an aluminum-doped zinc oxide nanometer material, which includes the steps of adding zinc nitrate, aluminum nitrate and citric acid or urea or carbohydrazide in a beaker, wherein mole ratio of citric acid or urea or carbohydrazide to nitrate is 0.5-1.2, aluminum content is 0.5-5.0 at%, adding deionized water, stirring, fully dissolving, then placing on a digital display constant temperature magnetic stirring device, heating and stirring continuously, and controlling temperature of the solution to be between 60-70 DEG C until the solution forms sol; controlling the temperature of the sol to be 80 DEG C till pale yellow gel is formed, and stopping heating and stirring; placing the beaker with the gel into a box-type resistance furnace preheated to 180 DEG C, maintaining the temperature for 3-5 hours, stopping heating, cooling naturally to room temperature, and taking out to obtain fluffy pre-cursor powder; and placing the obtained pre-cursor powder into the box-type resistance furnace, and placing precursor into the box-type resistance furnace to conduct heat treatment to obtain the multi-hole grid stick-shaped aluminum-doped zinc oxide nanometer material.

Description

technical field [0001] The invention relates to a production method of nanomaterials, in particular to a production method of porous grid rod-shaped self-assembled aluminum-doped zinc oxide nanomaterials. Background technique [0002] Zinc oxide (ZnO) is an important II-VI wide bandgap semiconductor material with a bandgap of 3.37eV, exciton binding energy as high as 60meV, high transparency, and excellent room temperature luminescence properties. It is used in liquid crystal displays in the semiconductor field, It is used in products such as thin film transistors and light emitting diodes. Compared with traditional bulk materials, nano-scale zinc oxide exhibits many novel physical and chemical properties due to its quantum size effect, surface effect and interface effect, so it has special properties and new uses that ordinary zinc oxide materials cannot match. . Nano-zinc oxide has shown very broad and attractive application prospects in the fields of aerospace, electron...

Claims

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Application Information

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IPC IPC(8): C01G9/02B82Y30/00B82Y40/00
Inventor 邱发贵周洁张梅李全明
Owner JILIN UNIV
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