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Method for preparing nano trimanganese tetroxide

A technology of trimanganese tetraoxide and nanometer, which is applied in the direction of nanotechnology, nanotechnology, ferrous iron oxide, etc., can solve the problems of high cost, non-environmental protection, complex processing methods of nanometer trimanganese tetraoxide, etc., and achieve simple processing , good economic benefits, low cost effect

Inactive Publication Date: 2014-08-20
GUILIN UNIV OF ELECTRONIC TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing nano-manganese tetraoxide has technical shortcomings such as complex processing methods, high cost, and non-environmental protection. It is urgent to find a method for preparing nano-manganese tetraoxide with simple processing, low cost, and environmental protection.

Method used

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  • Method for preparing nano trimanganese tetroxide
  • Method for preparing nano trimanganese tetroxide
  • Method for preparing nano trimanganese tetroxide

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Remove impurities from the collected banana peels, wash them with water, and dry them at room temperature for 5 days, then take 3 kilograms of dried banana peels and put them into 30 kilograms of deionized water at a temperature of 90 ° C, and make the deionized water Ionized water was refluxed for 5 hours, then filtered to obtain the banana peel extract, which was 1.5 kilograms through weighing the banana peel extract, and the banana peel extract obtained was added dropwise to 8.5 kilograms of concentration in the potassium permanganate solution of 1%, while Stir continuously for 5 hours, then filter to obtain a brown precipitate, and dry the brown precipitate at a temperature of 60° C. to finally obtain the final product.

[0030] Detection: XRD characterization shows that the product is trimanganese tetraoxide (attached figure 1 shown), the derivative peak of the sample is related to Mn 3 o 4 (Card No. 80-0382) Standard cards fit better. SEM photographs of the po...

Embodiment 2

[0033]Remove impurities from the collected banana peels, wash them with water, and dry them at room temperature for 4 days. Then take 1.5 kg of dried banana peels and put them into 20 kg of deionized water at a temperature of 85°C. Ionized water was refluxed for 7 hours, then filtered to obtain the banana peel extract, and it was 1 kilogram through weighing the banana peel extract, and the banana peel extract obtained was added dropwise to 9.5 kilograms of concentration in the potassium permanganate solution of 7%, while Stir continuously for 3 hours, then filter to obtain a brown precipitate, and dry the brown precipitate at a temperature of 55° C. to finally obtain the final product.

[0034] Detection: XRD characterization shows that the product is trimanganese tetraoxide, and the derivative peak of the sample is related to Mn 3 o 4 (The card number is 80-0382) The standard card fits well. From the scanning electron microscope photos of the obtained powder, it can be seen ...

Embodiment 3

[0037] Remove impurities from the collected banana peels, wash them with water, and dry them for 3.5 days at room temperature, then take 4.5 kg of dried banana peels and put them into 10 kg of deionized water at a temperature of 95°C, and make the deionized water Ionized water was refluxed for 10 hours, then filtered to obtain the banana peel extract, which was 1.5 kilograms through weighing the banana peel extract, and the obtained banana peel extract was added dropwise to 27 kilograms of concentration in the potassium permanganate solution of 5%, while Stir continuously for 4 hours, then filter to obtain a brown precipitate, and dry the brown precipitate at a temperature of 65° C. to finally obtain the final product.

[0038] Detection: XRD characterization shows that the product is trimanganese tetraoxide, and the derivative peak of the sample is related to Mn 3 o 4 (The card number is 80-0382) The standard card fits well. From the scanning electron microscope photos of th...

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Abstract

The invention discloses a method for preparing nano trimanganese tetroxide. The method is characterized by comprising the steps of by selecting waste banana peels as a raw material, drying in air, cutting into small pieces, heating with water, extracting active ingredients, reacting with potassium permanganate, filtering, and drying to obtain the nano trimanganese tetroxide which has the particle size of 10-80 nanometers, has good capacitance property and high energy storage property and serves as an electrode material for supercapacitors. Compared with the prior art, the method has the advantages that the preparation process is simple, low in cost, environmental friendly and rich in resource, and the product has the application advantage and has good economic, social and ecological benefits.

Description

technical field [0001] The invention relates to a preparation method of a supercapacitor electrode material, in particular to a preparation method of nano trimanganese tetraoxide. Background technique [0002] Supercapacitor is a new type of energy storage element between traditional capacitors and batteries. It has extremely important and broad application prospects in mobile communications, information technology, industrial fields, consumer electronics, electric vehicles, aerospace and defense technologies, etc. . Among the existing supercapacitor electrode materials, trimanganese tetroxide has become a supercapacitor electrode material that has attracted much attention due to its abundant reserves, low price, environmental friendliness and good electrochemical performance in neutral electrolytes. . [0003] Nano-manganese tetraoxide has better electrochemical performance than bulk materials due to its higher specific surface area and smaller particle size. At present,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G49/08B82Y30/00H01G11/46
Inventor 颜东亮徐华蕊朱归胜
Owner GUILIN UNIV OF ELECTRONIC TECH
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