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Preparation method of lead titanate/zinc oxide composite nanostructure on flexible substrate

A composite nanostructure and flexible substrate technology, applied in chemical instruments and methods, nanotechnology, nanotechnology, etc., can solve problems such as no related reports, and achieve the effects of simple process, good dispersion and high purity

Active Publication Date: 2014-09-10
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the research on composite materials of this material and other oxides, especially the preparation and performance exploration of composite materials on a flexible base is still in the exploratory stage, and there are no relevant reports at home and abroad.

Method used

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  • Preparation method of lead titanate/zinc oxide composite nanostructure on flexible substrate
  • Preparation method of lead titanate/zinc oxide composite nanostructure on flexible substrate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] 1) Configure Pb 2+ 20ml of lead nitrate aqueous solution with an ion concentration of 0.25mol / L; dissolving butyl titanate in ethylene glycol methyl ether to make the Ti in the solution 4+ The ion concentration is 0.25mol / L, add ammonia water with a mass concentration of 30% to Ti 4+ Ions are completely precipitated, filtered, washed, and titanium hydroxide precipitates are obtained;

[0021] 2) Prepare 20ml of 1mol / L potassium hydroxide aqueous solution and 40ml of 2g / L polyvinyl alcohol aqueous solution respectively, and combine potassium hydroxide aqueous solution, polyvinyl alcohol aqueous solution, titanium oxyhydroxide precipitation and step 1) lead nitrate aqueous solution together Added to the inner tank of the reactor, Ti 4+ Pb in lead nitrate solution 2+ The molar ratio is 1:1, placed in the reactor, airtight, at 180 o Insulation in the furnace of C, after reacting for 12 hours, be placed in the air and naturally cool down to room temperature, take out the...

Embodiment 2

[0028] 1) Configure Pb 2+ 20ml of lead nitrate aqueous solution with an ion concentration of 0.5mol / L; dissolving butyl titanate in ethylene glycol methyl ether to make the Ti in the solution 4+ Concentration is 0.5mol / L, add the ammoniacal liquor of mass concentration 30% to Ti 4+ The ions are completely precipitated, filtered and washed to obtain the precipitated titanium oxyhydroxide;

[0029]2) Prepare 20ml of 0.5mol / L potassium hydroxide aqueous solution and 40ml of 2g / L polyvinyl alcohol aqueous solution respectively, and deposit potassium hydroxide aqueous solution, polyvinyl alcohol aqueous solution, titanium hydroxide solution and lead nitrate aqueous solution in step 1) Together into the reactor liner, Ti 4+ Pb in lead nitrate solution 2+ The molar ratio is 1:1, placed in the reactor, airtight, at 200 o Insulate in the furnace of C, after reacting for 12 hours, place in the air and naturally cool down to room temperature, take out the reaction product, filter, wa...

Embodiment 3

[0035] 1) Configure Pb 2+ 20ml of lead nitrate aqueous solution with an ion concentration of 1mol / L; dissolving butyl titanate in ethylene glycol methyl ether to make Ti in the solution 4+ The concentration is 1mol / L, add ammonia water with a mass concentration of 30% to Ti 4+ The ions are completely precipitated, filtered and washed to obtain the precipitated titanium oxyhydroxide;

[0036] 2) Prepare 20ml of 2mol / L potassium hydroxide aqueous solution and 40ml of 2g / L polyvinyl alcohol aqueous solution respectively, and combine potassium hydroxide aqueous solution, polyvinyl alcohol aqueous solution, titanium oxyhydroxide precipitation and step 1) lead nitrate aqueous solution together Added to the inner tank of the reactor, Ti 4+ Pb in lead nitrate solution 2+ The molar ratio is 1:1, placed in the reactor, airtight, at 200 o Insulate in the furnace of C, after reacting for 10 hours, place in the air and naturally cool down to room temperature, take out the reaction prod...

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Abstract

The invention discloses a preparation method of a lead titanate / zinc oxide composite nanostructure on a flexible substrate. The preparation method comprises the steps: preparing a powdery one-dimensional columnar-structure lead titanate monocrystal nanofiber by using a hydrothermal method, adding absolute ethyl alcohol, carrying out ultrasonic oscillation into a suspension, dripping onto a silicon slice, drying, annealing, to obtain a tetragonal-phase lead titanate monocrystal nanofiber, scraping down from the silicon slice, adding absolute ethyl alcohol, dripping onto the flexible substrate, and forming a lead titanate monocrystal nanofiber film on the flexible substrate; and then taking zinc acetate as a zinc oxide seed solution, taking a mixed solution of a zinc nitrate aqueous solution, a hexamethylentetramine aqueous solution and a sodium citrate aqueous solution as a zinc oxide growing solution, growing zinc oxide on the flexible substrate with the lead titanate monocrystal nanofiber film, and thus obtaining the lead titanate / zinc oxide composite nanostructure on the flexible substrate. The preparation method has the advantages of simple technological process, easy control, no pollution and low cost. The prepared lead titanate / zinc oxide composite nanostructure on the flexible substrate is high in purity and good in dispersion.

Description

technical field [0001] The invention relates to a preparation method of a lead titanate / zinc oxide composite nanostructure, in particular to a preparation method of a lead titanate / zinc oxide composite nanostructure on a flexible substrate. Background technique [0002] Lead titanate is a typical perovskite-type ferroelectric oxide. Due to its simple structure, strong piezoelectricity and ferroelectricity, lead titanate has been the prototype of research in the field of ferroelectricity and piezoelectricity since its discovery in the 1950s. It is of great significance for people to understand the electronic origin of piezoelectricity and ferroelectricity of perovskite oxides. In addition, it also has great application potential as a pyroelectric material and is a promising ferroelectric, piezoelectric, and pyroelectric material. Zhejiang University used polymer-assisted hydrothermal method for the first time to prepare lead titanate single crystal nanofibers with one-dimen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C30B29/32C30B29/66C30B29/16C30B7/14B82Y40/00B82Y30/00
Inventor 韩高荣姜姗郑雪飞王玮琦任召辉徐刚肖珍刘振亚翁文剑杜丕一沈鸽赵高凌
Owner ZHEJIANG UNIV
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