Method for preparing parallel polycrystalline nano fiber bundle of stannic oxide and nickel oxide

Abstract

The invention relates to a method for preparing a parallel polycrystalline nano fiber bundle of a stannic oxide and a nickel oxide, which belongs to the technical field of the preparation of nano materials. In the prior art, single nano fibers of SnO2 and NiO and SnO2 / NiO nano composite powder are prepared. The method for preparing the parallel polycrystalline nano fiber bundle of the stannic oxide and the nickel oxide comprises three steps: (1), the preparation of a spinning solution, namely, adding stannic chloride pentahydrate and polyvinylpyrrolidone (PVP) to N, N-dimethylformamide (DMF) to form the spinning solution, and adding nickel acetate tetrahydrate and the PVP to DMF to form another spinning solution; (2), the preparation of a [SnCl4+PVP] / [Ni(CH3COO)2+PVP] precursor parallel composite fiber bundle, namely, obtaining the [SnCl4+PVP] / [Ni(CH3COO)2+PVP] precursor parallel composite fiber bundle by adopting an electrostatic spinning technique and using a parallel double spinning head; and (3), the preparation of SnO2 / NiO parallel polycrystalline nano fiber bundle, namely, thermally treating the [SnCl4+PVP] / [Ni(CH3COO)2+PVP] precursor parallel composite fiber bundle to obtain the SnO2 / NiO parallel polycrystalline nano fiber bundle, wherein the nano fibers of the SnO2 and the NiO respectively have a diameter of 180 nm and a length of being more than 100 [mu]m, and have favorable crystallinity. The preparation method provided by the invention is simple and feasible, can be used for batch production, and has a wide application foreground.

Description

technical field [0001] The invention relates to the technical field of nanomaterial preparation, in particular to a method for preparing tin dioxide and nickel oxide juxtaposed polycrystalline nanofiber bundles. Background technique [0002] Nanofiber refers to a linear material with two dimensions in the nanoscale on the three-dimensional space scale of the material, usually the radial dimension is on the order of nanometers, and the length is relatively large. Since the radial scale of nanofibers 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, surface or interface effects, and quantum size effects. , macroscopic quantum tunneling effect, etc., and therefore exhibit a series of chemical and physical (heat, light, sound, electricity, magnetism, etc.) aspects of specificity. In the prior art, there are many methods for...

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Problems solved by technology

At present, there is no use of electrospinning technology to prepare SnO 2 / NiO Juxtaposed Polycrystalline Nanofiber Bundles Related Reports

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