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A method for preparing nanofibers with nickel oxide tube-in-wire structure

A nanofiber, nickel oxide tube technology, used in fiber processing, fiber chemical characterization, rayon manufacturing, etc.

Active Publication Date: 2020-12-22
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, there is no report on the preparation of NiO tube-in-wire structure nanofibers by uniaxial electrospinning technology at a lower calcination temperature

Method used

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  • A method for preparing nanofibers with nickel oxide tube-in-wire structure
  • A method for preparing nanofibers with nickel oxide tube-in-wire structure
  • A method for preparing nanofibers with nickel oxide tube-in-wire structure

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Embodiment

[0022] Example: 1.20g Ni(CH 3 COO)2 4H 2 O was added to 7.00g DMF, magnetically stirred to dissolve, and then 1.80g PVP was added, and the stirring was continued for 12h to obtain a green and transparent spinning solution; the spinning solution was injected into a 10mL syringe with a 1mL plastic spray gun tip, and the graphite rod Insert it into the spinning solution and connect it to the positive terminal of the high-voltage DC power supply. The angle between the spray gun head and the horizontal plane is 30°. The vertically placed barbed wire is used as the receiving device and grounded. The barbed wire is connected to the zero-potential terminal of the high-voltage DC power supply. The distance between the spray gun head and the wire mesh of the receiving screen is 16cm, the spinning voltage is 13kV, the indoor temperature is 20-30°C, and the relative humidity is 20%-50%. Electrospinning is carried out to obtain Ni(CH 3 COO) 2 / PVP composite nanofiber; the Ni(CH 3 COO) ...

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Abstract

The invention relates to a method for preparing nanofibers with a nickel oxide tube-in-wire structure, and belongs to the technical field of nanomaterial preparation. The invention adopts the method of combining uniaxial electrospinning technology and roasting technology to prepare NiO tube-in-wire structure nanofibers. The present invention comprises three steps: (1) prepare spinning solution; (2) prepare Ni(CH 3 COO) 2 / PVP composite nanofibers were prepared by uniaxial electrospinning technology; (3) NiO tube-in-line structure nanofibers were prepared, and Ni(CH 3 COO) 2 / PVP composite nanofibers were heat-treated in air to obtain nanofibers with NiO tube-in-wire structure, which belonged to the cubic crystal system. The diameter of the tube was 130±0.99nm, the average diameter of the nanowires in the tube was 50nm, and the average length was greater than 2μm. The preparation method of the invention is simple and easy, can be produced in batches, and has broad application prospects.

Description

technical field [0001] The invention relates to the technical field of nanomaterial preparation, in particular to a method for preparing nanofibers with a nickel oxide tube-in-wire structure. Background technique [0002] The preparation and properties of nanofibers with tube-in-wire structure are one of the frontier hot research fields in material science, condensed matter physics, chemistry and other disciplines. The tube-in-wire structure nanofiber refers to a tubular material that has two dimensions in the nanometer scale on the three-dimensional space scale of the material. Nanowires are embedded in the nanotubes, usually the radial scale is on the order of nanometers, and the length is relatively large. Since the radial scale of the tube-in-wire structure nanofiber is as small as nanometers, it shows a series of characteristics, the most prominent is the large specific surface area, which increases its surface energy and activity, and then produces small size effects, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01F9/10D01F6/44D01F1/10D01F11/06D01D5/00
CPCD01D5/003D01D5/0069D01D5/0076D01D5/0092D01F1/10D01F6/44D01F9/10D01F11/06
Inventor 董相廷王悦李丹马千里于文生杨颖王昕璐于辉王进贤刘桂霞
Owner CHANGCHUN UNIV OF SCI & TECH