Method for preparing tin dioxide and titanium dioxide nano cable

A technology of nano-cable and tin dioxide, which is used in the manufacture of coaxial cables, nanotechnology, nanotechnology, etc.

Inactive Publication Date: 2010-06-30
CHANGCHUN UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

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

Method used

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  • Method for preparing tin dioxide and titanium dioxide nano cable
  • Method for preparing tin dioxide and titanium dioxide nano cable
  • Method for preparing tin dioxide and titanium dioxide nano cable

Examples

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Embodiment 1

[0020] Embodiment 1: tin tetrachloride pentahydrate and polyvinylpyrrolidone (PVP) are joined in the mixed solvent (volume ratio 5: 1) of N, N-dimethylformamide (DMF) and glycerol, magnetic stirring under room temperature 4h, and let it stand for 2h to form the core spinning solution. The mass percentages of each substance in the core spinning solution are: 11% of PVP, 7% of tin tetrachloride, and 82% of DMF+glycerin. 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 7%, ethanol + butyl titanate 93%. 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 s...

Embodiment 2

[0021] Embodiment 2: Add tin tetrachloride pentahydrate and polyvinylpyrrolidone (PVP) into the mixed solvent (volume ratio 5: 1) of N, N-dimethylformamide (DMF) and glycerol, magnetic stirring under room temperature 6h, and let it stand for 3h to form the core spinning solution. The mass percent of each substance in the core layer spinning solution is: 15% of PVP, 10% of tin tetrachloride, and 75% of DMF+glycerin. 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 percentage 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...

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Abstract

The invention relates to a method for preparing a tin dioxide and titanium dioxide nano cable, which belongs to the technical field of nano material preparation. The method comprises the following three steps of: (1) preparation of spinning solution, adding stannic chloride and polyvinylpyrrolidone (PVP) into a mixed solvent of N, N-dimethylformamide and glycerin so as to prepare a core layer of the spinning solution, and adding PVP into a mixed liquid of butyl titanate and absolute ethyl alcohol so as to prepare a shell layer of the spinning solution; (2) preparation of (PVP+SnC14) and [PVP+Ti(OC4H9)] composite nano fiber by a coaxial electrostatic spinning technology under the condition that the voltage is 11.5-15 kV, the curing distance is 10-15 cm, the room temperature is 20-25 DEG C and the relative humidity is 45-50 percent; (3) preparation of SnO2 an TiO2 nano cable: carrying out heat treatment on the composite nano fiber to obtain the cable with cable diameter of 300-340 nm, core layer diameter of 200-220 nm, the shell layer thickness of 50-60 nm and length of more than 300 mu m.

Description

technical field [0001] The invention relates to the technical field of nanomaterial preparation, in particular to a preparation method of tin dioxide@titanium dioxide nano cable. 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 Wait. According to the differen...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B13/00H01B13/016H01B1/08B82B3/00D01D5/34
Inventor 董相廷王进贤刘濂刘桂霞于文生
Owner CHANGCHUN UNIV OF SCI & TECH
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