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Mesoporous nanotube material of inorganic salt, preparation method of mesoporous nanotube material by employing gradient pyrolysis and electrostatic spinning, and application of mesoporous nanotube material

A technology of inorganic salts and nanotubes, applied in the manufacture of hybrid/electric double layer capacitors, circuits, electrical components, etc., can solve problems such as limiting development and application, and achieve the effects of shortening the transmission path, improving electrochemical performance, and effective self-expansion

Active Publication Date: 2015-05-06
武汉楚理佳纳新能源科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This greatly limits its further development and application

Method used

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  • Mesoporous nanotube material of inorganic salt, preparation method of mesoporous nanotube material by employing gradient pyrolysis and electrostatic spinning, and application of mesoporous nanotube material
  • Mesoporous nanotube material of inorganic salt, preparation method of mesoporous nanotube material by employing gradient pyrolysis and electrostatic spinning, and application of mesoporous nanotube material
  • Mesoporous nanotube material of inorganic salt, preparation method of mesoporous nanotube material by employing gradient pyrolysis and electrostatic spinning, and application of mesoporous nanotube material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] 1) Weigh 0.189g lithium hydroxide monohydrate, 0.345g ammonium metavanadate, 0.5175g ammonium dihydrogen phosphate, 0.40g oxalic acid dihydrate according to the stoichiometric ratio, add 20mL deionized water, and stir magnetically at room temperature to make it All dissolved to form a uniform and transparent solution;

[0056] 2) Weigh 1g of low-molecular-weight PVA, 0.70g of medium-molecular-weight PVA and 0.35g of high-molecular-weight PVA into the homogeneous transparent solution obtained in step 1), put it in a constant temperature water bath at 80°C, and stir it magnetically for 12 hours to make it dissolve;

[0057] 3) Take out the solution in step 2), and let it stand at room temperature for 2 hours to form a uniform, transparent, yellow precursor solution with a certain viscosity;

[0058] 4) Add the precursor obtained in step 3) into the syringe, perform electrospinning under the conditions of positive high voltage 17kV and negative high voltage -2kV, and rece...

Embodiment 2

[0068] 1) Weigh 0.345g of ammonium metavanadate and 0.5399g of sodium dihydrogen phosphate according to the stoichiometric ratio, add 20mL of deionized water, and magnetically stir at room temperature to dissolve them all, forming a uniform and transparent solution;

[0069] 2) Weigh 1g of low-molecular-weight PVA, 0.70g of medium-molecular-weight PVA and 0.35g of high-molecular-weight PVA into the homogeneous transparent solution obtained in step 1), put it in a constant temperature water bath at 80°C, and stir it magnetically for 12 hours to make it dissolve;

[0070] 3) Take out the solution in step 2), and let it stand at room temperature for 2 hours to form a uniform, transparent, yellow precursor solution with a certain viscosity;

[0071] 4) Add the sol precursor solution obtained in step 3) into the syringe, perform electrospinning under the conditions of positive high voltage 17kV and negative high voltage -2kV, and receive nanofibers with aluminum foil;

[0072] 5) ...

Embodiment 3

[0075] 1) Weigh 0.255g of sodium nitrate, 0.315g of manganese acetate tetrahydrate, 1.212g of ferric nitrate nonahydrate into 20mL of deionized water according to the stoichiometric ratio, and stir magnetically at room temperature to dissolve them all, forming a uniform and transparent solution.

[0076] 2) Weigh 1g of low-molecular-weight PVA, 0.70g of medium-molecular-weight PVA and 0.35g of high-molecular-weight PVA into the homogeneous transparent solution obtained in step 1), put it in a constant temperature water bath at 80°C, and stir it magnetically for 12 hours to make it dissolve.

[0077] 3) Take out the solution in step 2), and let it stand at room temperature for 2 hours to form a uniform, transparent, yellow precursor solution with a certain viscosity.

[0078] 4) Add the sol precursor solution obtained in step 3) into the syringe, perform electrospinning under the conditions of positive high voltage 17kV and negative high voltage -2kV, and receive nanofibers wit...

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Abstract

The invention relates to a mesoporous nanotube material of an inorganic salt, a preparation method of the mesoporous nanotube material by employing gradient pyrolysis and electrostatic spinning, and application of the mesoporous nanotube material. According to a mesoporous nanotube obtained in an air atmosphere condition, the tube wall is formed by accumulating a plurality of tiny nano-particles; the outer diameter of the nanotube is 50-200nm; the diameter of an inner tube is 20-100nm; the size of the nano-particles is 5-50nm; according to a mesoporous nanotube obtained under an inert atmosphere condition, the tube wall is composed of tiny nanoparticles and an ultra-thin mesoporous carbon nanotube; the nanotube is uniform in morphology; the outer diameter of the tube is 50-300nm; the inner diameter of the tube is 20-200nm; the sizes of the tiny particles are 5-30nm; and the nanocrystal particles are uniformly inlaid on a carbon membrane. The mesoporous nanotube material has the beneficial effect of being capable of being conveniently popularized into kinds of inorganic salts, and has the characteristics of being high in universality, simple in process, environmentally friendly, and low in price; the obtained material has the excellent electrochemical property, and has the large-scale application potential.

Description

technical field [0001] The invention belongs to the technical field of nanomaterials and electrochemical devices, and specifically relates to a general and universal inorganic salt mesoporous nanotube material and its gradient pyrolysis electrospinning preparation method and application. These mesoporous nanotubes can be used as Electrode materials for electrochemical energy storage devices can also be applied in other fields. Background technique [0002] One-dimensional nanostructures, including nanowires and nanotubes, have become a research hotspot in nanoscience and nanotechnology because of their unique low-dimensional properties, especially unique directional transport and structural stability. [0003] The existing preparation methods, such as gas-liquid-solid, hydrothermal, template, chemical / physical vapor deposition and other methods, due to the limitations of each method to adapt to the object and the limitation of the crystal growth orientation of the material i...

Claims

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Application Information

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IPC IPC(8): H01M4/587H01G11/26H01G11/36H01G11/86
CPCH01G11/26H01G11/36H01G11/86H01M4/587H01M10/0525Y02E60/10
Inventor 麦立强牛朝江孟甲申
Owner 武汉楚理佳纳新能源科技有限公司
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