Preparation method of light color rodlike ZAO (Zinc Aluminium Oxide) conductive powder

A conductive powder and rod-shaped technology, which is applied in the field of light-colored rod-shaped ZAO conductive powder and its preparation, can solve the problems of limitations in the connection field of microscopic devices, and achieve the effects of no agglomeration, light color, and low-cost sources

Inactive Publication Date: 2013-12-25
EAST CHINA UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to propose a light-colored rod-shaped ZAO conductive powder material and its preparation method to solve the limitation that the existing zero-dimensional ZAO powder material cannot be applied to the field of microscopic device connection

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] According to the ratio of the number of zinc atoms to aluminum atoms as 100:2, weigh Al(NO 3 ) 3 ·9H 2 O0.37g, Zn(NO 3 ) 2 ·6H 2 O14.6 grams, and then weigh 0.75 grams of cetyltrimethylammonium bromide. Put it into the polytetrafluoroethylene liner of the hydrothermal reaction kettle, add 150mL of water and stir evenly, add ethylenediamine to adjust the pH of the reaction system to 7-8, then hydrothermally react in a 140℃ oven for 24 hours, and centrifuge. After precipitation, transfer the precipitate to the crucible and put it into the oven, set the temperature to 100°C, and dry for 2 hours until the precursor is dried. Then put the crucible into the muffle furnace, set the calcination temperature to 700 ℃, after calcination for 2 hours, naturally cool to room temperature, the light-colored rod-shaped ZAO powder is obtained, and the length of the product is about 3.5 microns and the diameter is about 250 nanometers. .

Embodiment 2

[0026] According to the ratio of the number of zinc atoms to aluminum atoms as 100:2, weigh Al(NO 3 ) 3 ·9H 2 O0.37g, Zn(NO 3 ) 2 ·6H 2 O14.6 grams, and then weigh 0.25 grams of cetyltrimethylammonium bromide. Put it into the polytetrafluoroethylene liner of the hydrothermal reaction kettle, add 150mL of water and stir evenly, add ethylenediamine to adjust the pH of the system to 7-8, then hydrothermally react in a 140℃ oven for 6 hours, and centrifuge to separate the precipitate , Then transfer the precipitate to the crucible and put it into the oven, set the temperature to 100 ℃, dry for 2 hours, until the precursor is dried. Then put the crucible into the muffle furnace, set the calcination temperature to 500°C, and after calcination for 5 hours, naturally cool to room temperature to obtain the light-colored rod-shaped ZAO powder. The product is about 3.5 microns in length and 200 nanometers in diameter through transmission electron microscope observation.

Embodiment 3

[0028] According to the ratio of the number of zinc atoms to aluminum atoms as 100:2, weigh Al(NO 3 ) 3 ·9H 2 O0.37g, Zn(NO 3 ) 2 ·6H 2 O14.6 grams, and then weigh 0.25 grams of cetyltrimethylammonium bromide. Put it into the polytetrafluoroethylene liner of the hydrothermal reactor, add 150mL of water and stir evenly, add ethylenediamine to adjust the pH of the system to 7-8, then hydrothermally react in a 140℃ oven for 18 hours, and centrifuge to separate the precipitate , Then transfer the precipitate to the crucible and put it into the oven, set the temperature to 75 ℃, dry for 8 hours, until the precursor is dried. Then put the crucible into the muffle furnace and set the calcination temperature to 800℃. After calcination for 1 hour, it was naturally cooled to room temperature to obtain a light yellow rod-shaped ZAO nano-powder. The product is about 4 microns long and 300 nanometers in diameter. .

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Abstract

The invention belongs to the technical field of materials chemistry, and particularly relates to light color rodlike ZAO (Zinc Aluminium Oxide) conductive powder and a preparation method thereof. According to the invention, a hydrothermal-template method is adopted; and the preparation method includes the following steps: adding corresponding zinc source, aluminium source and a template agent into a hydrothermal reaction kettle; after adding water and uniformly stirring, regulating the pH value of a reaction system into 7 to 8 by utilizing ethylenediamine; after performing the hydrothermal reaction for a certain time, carrying out centrifugal analysis and drying on a precursor; and calcining at a certain temperature to obtain the light color rodlike ZAO nano powder. The powder has excellent electrical conductivity, has high temperature resistance and oxidation resistance, can be used as a connecting material of a micro electronic device and can overcome the defects of a zero-dimension ZAO powder material in application.

Description

Technical field [0001] The invention belongs to the technical field of material chemistry, and specifically relates to a light-colored rod-shaped ZAO conductive powder and a preparation method thereof. Background technique [0002] Zinc Aluminium Oxide (ZAO for short) is a replacement solid solution formed by zinc oxide and aluminum oxide. It not only has good ultraviolet absorption performance, high chemical stability, but also has light color, high visible light transmittance, and good electrical conductivity. Characteristics, it can be widely used in antistatic coatings, rubber and plastics and other fields. It can replace ITO (In 2 O 3 : Sn) material trends. [0003] Doping aluminum in zinc oxide can improve its anti-ultraviolet performance, conductivity and so on. The amount of aluminum is not added randomly, but must be controlled at a certain value, that is, the ratio of the number of zinc atoms to aluminum atoms is 100: 2, ZAO nanopowders have the best conductivity. At pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01G9/03
Inventor 刘金库王世会王晶罗重霄张乃千汪戎
Owner EAST CHINA UNIV OF SCI & TECH
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