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Zinc titanite and titanium dioxide polycrystal nanocable preparation method

A nano-cable, zinc titanate technology, applied in nanotechnology, nanotechnology, oxide conductors, etc.

Inactive Publication Date: 2010-07-28
CHANGCHUN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, no coaxial electrospinning technology has been used to prepare ZnTiO 3 @TiO 2 Related reports about nano-cables

Method used

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  • Zinc titanite and titanium dioxide polycrystal nanocable preparation method
  • Zinc titanite and titanium dioxide polycrystal nanocable preparation method
  • Zinc titanite and titanium dioxide polycrystal nanocable preparation method

Examples

Experimental program
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Effect test

Embodiment 1

[0020] Example 1: Add zinc nitrate hexahydrate and polyvinylpyrrolidone (PVP) into N, N-dimethylformamide (DMF), stir magnetically for 6 hours at room temperature, and let stand for 3 hours to form a core spinning solution . The mass percentages of each substance in the core layer spinning solution are: PVP 15%, zinc nitrate 8%, DMF 77%. Add a certain amount of polyvinylpyrrolidone (PVP) into the mixture of butyl titanate and absolute ethanol (volume ratio 1:4), stir magnetically for 3 hours at room temperature, and let it stand for 2 hours to form a shell spinning solution. . The mass percent of each substance in the shell spinning solution is: PVP 10%, ethanol + butyl titanate 90%. Coaxial electrospinning technology is used for spinning. The composition of the coaxial nozzle adopts a truncated 10# stainless steel injection needle (outer diameter = 1.0mm, inner diameter = 0.7mm) as the inner spray needle, and a 12# stainless steel needle (outer diameter = 1.4mm, inner diam...

Embodiment 2

[0021] Example 2: Add zinc nitrate hexahydrate and polyvinylpyrrolidone (PVP) into N, N-dimethylformamide (DMF), stir magnetically for 4 hours at room temperature, and let stand for 2 hours to form a core spinning solution . The mass percentages of each substance in the core layer spinning solution are: PVP 18%, zinc nitrate 10%, DMF 72%. Add a certain amount of polyvinylpyrrolidone (PVP) into the mixed solution of butyl titanate and absolute ethanol (volume ratio 1:4), stir magnetically at room temperature for 6 hours, and let it stand for 3 hours to form a shell spinning solution. . The mass percent of each substance in the shell spinning solution is: PVP 15%, ethanol + butyl titanate 85%. Coaxial electrospinning technology is used for spinning. The composition of the coaxial nozzle adopts a truncated 10# stainless steel injection needle (outer diameter = 1.0mm, inner diameter = 0.7mm) as the inner spray needle, and a 12# stainless steel needle (outer diameter = 1.4mm, in...

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Abstract

The invention relates to a zinc titanite and titanium dioxide polycrystal nanocable preparation method and belongs to the technical field of nano-material preparation. The invention consists of three steps: (1) preparation of spinning solution; zinc nitrate and polyvinyl pyrrolidone (PVP) are added to N, N-dimethylformamide to form core layer spinning solution; the PVP is added to the mixture solution of butyl titanate and absolute ethanol to form shell layer spinning solution. (2) Preparation of (PVP + Zn (NO3) 2) and (PVP + Ti (OC4H9) 4) composite nanofiber: coaxial electrostatic spinning technology is adopted and the voltage is 12-15kV. (3) Preparation of ZnTiO3 and TiO2 polycrystal nanofiber. The composite nanofiber receives heat treatment to obtain ZnTiO3 and TiO2 polycrystal nanocable, and the cable diameter is 180-240nm, the core layer diameter is 160-200nm, the shell thickness is 10-20nm and the cable length is more than 500mum.

Description

technical field [0001] The invention relates to the technical field of preparation of inorganic nanomaterials, in particular to a method for preparing zinc titanate@titanium dioxide polycrystalline nanocables. Background technique [0002] The preparation and properties of one-dimensional nanostructured materials are one of the frontier hotspots in the field of material science research. Nanocables (Nanocables) have attracted great attention in recent years because of their unique properties, rich scientific connotations, broad application prospects and important strategic positions in future nanostructure devices. The research on coaxial nano-cables started in the mid-1990s, and developed rapidly after 2000. So far, people have successfully prepared hundreds of coaxial nano-cables by using different synthesis methods and different types of materials, such as: Fe / C, Zn / ZnO, C / C, SiC / C, SiGaN / SiO x N y And the three-layer structure of Fe-C-BN and α-Si 3 N 4 -Si-SiO 2 W...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B13/00H01B1/08B82B3/00D01D5/34
Inventor 王进贤董相廷张立斌刘桂霞
Owner CHANGCHUN UNIV OF SCI & TECH