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Antimony-doped tin oxide cladding titanium dioxide composite conductive material and preparation method

A titanium dioxide, composite conductive technology, applied in the directions of oxide conductors, conductive layers on insulating carriers, metal/alloy conductors, etc., can solve problems such as lack, and achieve the effects of short synthesis cycle, light color, and simple and easy process

Inactive Publication Date: 2014-08-13
TIANJIN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the ATO powder after high-temperature sintering is blue powder, and its color limits its application, and my country’s tin and antimony resources are scarce. In order to reduce production costs, titanium dioxide, which is more abundant in resources and more affordable in price, is selected as The raw material is made conductive by coating a layer of conductive ATO on its surface

Method used

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  • Antimony-doped tin oxide cladding titanium dioxide composite conductive material and preparation method
  • Antimony-doped tin oxide cladding titanium dioxide composite conductive material and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Add 2.000g of titanium dioxide to 150ml of deionized water and ultrasonically disperse for 2 hours to prepare suspension 1; take 20mL of hydrochloric acid solution with a mass concentration of 18%, and add 4.383g of crystalline tin tetrachloride under constant stirring, and wait until it is completely dissolved Then add 0.143g of antimony chloride to obtain solution 2; take 2.000g of sodium hydroxide and add 50mL of deionized water to prepare clear solution 3; while stirring, add solution 2 and solution 3 dropwise to suspension 1 at the same time, after the reaction is completed Continue to stir for 0.5h, after aging for 5h, centrifugally wash with deionized water, wash until there is no chloride ion in the solution, dry at 115°C for 5h, grind the dried powder and calcinate at 500°C for 2h to obtain antimony-doped oxide Tin-coated titanium dioxide composite conductive powder material. The conductive powder is composed of an antimony-doped tin oxide coating layer with ...

Embodiment 2

[0014] Add 1.500g of titanium dioxide to 150ml of deionized water and ultrasonically disperse for 2 hours to prepare suspension 1; take 20mL of hydrochloric acid solution with a mass concentration of 18%, and add 4.602g of crystalline tin tetrachloride under constant stirring, and wait until it is completely dissolved Then add 0.150g of antimony chloride to obtain solution 2; add 4.000g of sodium hydroxide to 50mL of deionized water to prepare a clear solution 3; Continue to stir for 0.5h after the reaction is completed, centrifuge and wash after aging for 5h, dry at 80°C for 10h, grind the dried powder and calcinate at 500°C for 2h to obtain antimony-doped tin oxide-coated titanium dioxide composite conductive powder material .

Embodiment 3

[0016] The experimental procedure of this example is the same as that of Example 1, except that the heat treatment temperature is changed from 500° C. to 700° C. to obtain an antimony-doped tin oxide-coated titanium dioxide composite conductive powder material.

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Abstract

The invention discloses an antimony-doped tin oxide cladding titanium dioxide composite conductive material and a preparation method of the antimony-doped tin oxide cladding titanium dioxide composite conductive material. The antimony-doped tin oxide cladding titanium dioxide composite conductive material is composed of antimony-doped tin oxide cladding and titanium dioxide, wherein the percentage composition ratio of the molar content of the antimony-doped tin oxide in the cladding to the molar content of the titanium dioxide is 0.3-0.9:1. The preparation method comprises the following steps that the titanium dioxide is added into deionized water, so that suspension liquid 1 with the molar concentration of 10-20% is prepared; crystal tin chloride and antimony butter are added into a hydrochloric acid solution, so that a solution 2 is prepared; sodium hydroxide is added into deionized water, so that a solution 3 is prepared; the suspension liquid 1, the solution 2 and the solution 3 are mixed, centrifugation, washing, drying and calcinations are conducted on the mixed solution after aging, and the composite conductive material is obtained. The antimony-doped tin oxide cladding titanium dioxide composite conductive material and the preparation method of the antimony-doped tin oxide cladding titanium dioxide composite conductive material have the advantages that the composite conductive material prepared through a coprecipitation method is simple in synthetic process, the prepared powder is uniform in composition, high in purity and controllable in stoichiometric ratio, and prepared conduvtive power materials are high in purity, light in color, small in grain size and good in dispersity.

Description

technical field [0001] The invention relates to an antimony-doped tin oxide-coated titanium dioxide composite conductive material and a preparation method thereof, belonging to the technical field of composite conductive materials. Background technique [0002] Antimony doped tin oxide (ATO) is an n-type semiconductor material. Its powder has excellent electrical conductivity, and its loose density is smaller than that of metal powder. It is stable and dispersed in the matrix material and is not easy to Aggregation and sedimentation will not cause the decrease of conductivity due to the oxidation of metal powder. It has broad application prospects in the preparation of coatings, conductive materials, infrared absorbing materials and antistatic materials. It is a kind of promising development potential. Versatile material. [0003] At present, the ATO powder after high-temperature sintering is blue powder, and its color limits its application, and my country’s tin and antimo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B1/08H01B1/02H01B5/14H01B13/00
Inventor 郑冀王英蒋菲张萌
Owner TIANJIN UNIV
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