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Light color rodlike ZAO (Zinc Aluminium Oxide) conductive powder and preparation method thereof

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 problems such as limitations in the connection field of microscopic devices, and achieve the effects of no agglomeration, low price, and uniform particle size

Inactive Publication Date: 2012-07-04
EAST CHINA UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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, so as to solve the limitation problem that the existing zero-point ZAO powder material cannot be used in the field of microscopic device connection

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Weigh Al(NO 3 ) 3 9H 2 O 0.37g, Zn(NO 3 ) 2 ·6H 2 O 14.6g, cetyltrimethylammonium bromide 0.75g. Put it into the polytetrafluoroethylene liner of the hydrothermal reaction kettle, add 150mL of water and stir evenly, then add ethylenediamine to adjust the pH of the reaction system to 7-8, then conduct a hydrothermal reaction in an oven at 140°C for 24 hours, and centrifuge to separate and precipitate , and then transfer the precipitate into the crucible and put it into the oven, set the temperature to 100°C, and dry it for 2 hours until the precursor is dried. Then put the crucible into the muffle furnace, and set the calcination temperature to 700°C. After calcination for 2 hours, cool down to room temperature naturally to obtain a light-colored rod-shaped ZAO powder. The length of the product is about 3.5 μm and the diameter is about 250 nm, observed by a transmission electron microscope.

Embodiment 2

[0025] Weigh Al(NO 3 ) 3 9H 2 O 0.37g, Zn(NO 3 ) 2 ·6H 2 O 14.6g, cetyltrimethylammonium bromide 0.25g. Put it into the polytetrafluoroethylene liner of the hydrothermal reaction kettle, add 150mL of water and stir evenly, then add ethylenediamine to adjust the pH of the system to 7-8, then react hydrothermally in an oven at 140°C for 6 hours, and centrifuge to separate the precipitate. Then transfer the precipitate into a crucible and put it into an oven, set the temperature to 100°C, and dry it 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, cool it down to room temperature naturally to obtain a light-colored rod-shaped ZAO powder, which is about 3.5 μm in length and 200 nm in diameter as observed by a transmission electron microscope.

Embodiment 3

[0027] Weigh Al(NO 3 ) 3 9H 2 O 0.37g, Zn(NO 3 ) 2 ·6H 2 O 14.6g, cetyltrimethylammonium bromide 0.25g. Put it into the polytetrafluoroethylene liner of the hydrothermal reaction kettle, add 150mL of water and stir evenly, then add ethylenediamine to adjust the pH of the system to 7-8, then perform hydrothermal reaction in an oven at 140°C for 18 hours, and centrifuge to separate the precipitate. Then transfer the precipitate into a crucible and put it into an oven, set the temperature at 75°C, and dry it for 8 hours until the precursor is dried. Then put the crucible into the muffle furnace, set the calcination temperature to 800°C, and after calcination for 1 hour, cool it down to room temperature naturally to obtain a light yellow rod-shaped ZAO nanopowder, which is about 4 μm in length and about 300 nm in diameter as observed by a transmission electron microscope.

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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 in particular relates to a light-colored rod-shaped ZAO conductive powder and a preparation method thereof. Background technique [0002] Aluminum-doped zinc oxide (Zinc Aluminum Oxide, referred to as ZAO) is a replacement solid solution formed by zinc oxide and aluminum oxide. It not only has good ultraviolet absorption performance and high chemical stability, but also has light color, high visible light transmittance, and good conductivity. characteristics, can be widely used in antistatic coatings, rubber and plastics, etc., and can replace ITO (In 2 o 3 :Sn) material trends. [0003] Doping aluminum in zinc oxide can improve its anti-ultraviolet performance, electrical 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 atoms of zinc atoms to aluminum atoms is 100:2, so that ZAO ...

Claims

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Application Information

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Patent Type & Authority Applications(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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