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Ato nanocrystal water dispersion and preparation method thereof

A nanocrystal and dispersion technology, which is applied in the manufacture of cables/conductors, oxide conductors, electrical components, etc., can solve the problems of transparent conductive materials containing impurities, easy to agglomerate and settle, and unstable in storage. High solid content and good transparency

Inactive Publication Date: 2016-12-14
南京大学淮安高新技术研究院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The invention mainly solves the problems that the existing transparent conductive materials contain impurities, large particle diameter, low solid content, unstable during storage, easy to coagulate and settle, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Embodiment 1: 120g of tin tetrachloride pentahydrate and 14.3g of antimony trichloride are dissolved in 600ml of isopropanol, the above solution is poured into 1200ml of boiling water, neutralized to neutral with ammonia water, and kept on a low-temperature electric furnace for 70 -90°C for 1 hour, then let it cool down, filter it with a Buchner funnel covered with dense filter paper, then wash it ten times with pure water, transfer the obtained precipitate to a suitable container, add pure water to 800ml, Stir evenly, then put the above suspension into a 2L magnetically stirred high-temperature autoclave, heat up to 300-400°C after sealing, keep the pressure at 15-22Mpa, keep the temperature and pressure for 3-5 hours, stop heating and cool to room temperature , Refuse to stir when it is higher than 100°C, move the product to a container and let it stand for stratification, pour the supernatant into another container and heat and concentrate until viscous, or concentrat...

Embodiment 2

[0019] Example 2: Dissolve 600g of tin tetrachloride pentahydrate and 71.5g of antimony trichloride in 3000ml of isopropanol, pour the above solution into 6000ml of boiling water, neutralize it with ammonia water, and keep it warm on a low-temperature electric furnace 70-90°C for 1 hour, then let it cool down, filter it with a Buchner funnel covered with dense filter paper, then wash it ten times with pure water, transfer the obtained precipitate to a suitable container, add pure water to 4000ml , stir evenly, then put the above suspension into a 1OL magnetically stirred high-temperature autoclave, heat up to 300-400°C after sealing, keep the pressure at 15-22Mpa, keep the temperature and pressure for 3-5 hours, stop heating and cool to At room temperature, refuse to stir when it is higher than 100°C, move the product to a container for static layering, pour the supernatant into another container and heat and concentrate until it becomes viscous, or the supernatant obtained by ...

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Abstract

The invention discloses an ATO nanocrystal aqueous dispersion and a preparation method thereof, which adopts a simple and convenient hydrothermal synthesis and post-treatment process, and the post-treatment adopts an optimized process of sand mill-ultrasonic crushing-high-speed centrifugation without using any additives A pure and stable ATO aqueous dispersion with high solid content has been produced. This product has the advantages of high purity, high solid content, good transparency, excellent electrical conductivity, stable storage, no coagulation, no sedimentation, etc., expanding its application range. It provides excellent raw materials for studying the structure, synthesis mechanism and water dispersion mechanism of its crystalline nanomaterials.

Description

technical field [0001] The invention relates to the technical field of manufacturing transparent nanocrystalline conductive functional materials, in particular to the application of a hydrothermal synthesis method to manufacture an ATO nanocrystalline aqueous dispersion and a preparation method thereof. Background technique [0002] At present, common conductive materials such as metal and graphite are opaque materials. Modern high-tech technology requires a large number of new materials that are both transparent and conductive. At present, there are antimony trioxide, tin dioxide (ATO) and Indium and tin dioxide (ITO) transparent conductive materials, these materials often contain impurities, large particle diameter, low solid content, unstable during storage, easy to condense and settle, and should not be used in technical fields with special requirements; in order to solve these problems, People have also begun to research and produce nano-scale ATO materials to meet the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B1/08H01B13/00
Inventor 张文知
Owner 南京大学淮安高新技术研究院
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