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Method for preparing electrode material by electrochemical ion exchange method and electrode material

An ion exchange method and a technology for preparing electrodes, which are applied in the field of methods and electrode materials, electrode materials prepared by electrochemical ion exchange method, can solve complex synthesis and other problems, and achieve the effects of simple operation, low temperature and short time

Pending Publication Date: 2020-08-11
SHANDONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In addition, we pay attention to the NiMn 2 o 4 Material, NiMn 2 o 4 material is a better electrode material, but about NiMn 2 o 4 The preparation methods of materials mainly include high-temperature solid-state reaction at around 1200 °C, solvothermal combined with subsequent oxidation treatment, and the synthesis is relatively complicated.

Method used

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  • Method for preparing electrode material by electrochemical ion exchange method and electrode material
  • Method for preparing electrode material by electrochemical ion exchange method and electrode material
  • Method for preparing electrode material by electrochemical ion exchange method and electrode material

Examples

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Effect test

Embodiment 1

[0036] In order to solve the problems of the technologies described above, the present invention is realized as follows: prepare NiMn by electrochemical ion exchange method 2 o 4 Material. Prepare a square nickel foam (1×1cm) and ultrasonically clean it with absolute ethanol for 15 minutes, dry it at a constant temperature at 60°C for 15 minutes, weigh and record its mass, the mass of square nickel foam is 30mg, and weigh 0.02mol MnCl 2 4H 2 O is dissolved in 20ml deionized water and puts into 3 dry nickel foams, wherein the quality of foam nickel is the same as that of MnCl 2 The volume of the solution has no specific ratio, as long as there are enough reactants to grow on the nickel foam, the nickel foam is only a growth medium and does not affect the reaction, stir for 30 minutes, take another beaker and weigh 0.02mol NaOH, dissolve it in 20ml of deionized water, and stir for 15 minutes , slowly drop the stirred NaOH solution into the stirred MnCl with a dropper 2 solut...

Embodiment 2

[0038] In order to solve the problems of the technologies described above, the present invention is realized in the following manner, as shown in the figure: NiMn is prepared by electrochemical ion exchange 2 o 4 / Mn 3 o 4 Multi-component composite metal oxide. Prepare a square nickel foam (1×1cm) and ultrasonically clean it with absolute ethanol for 15 minutes, dry it at a constant temperature of 60°C for 15 minutes, weigh and record its mass, and weigh 0.02mol MnCl 2 4H 2 O was dissolved in 20ml of deionized water and put into 3 pieces of dry nickel foam, stirred for 30min, and another beaker was taken to weigh 0.02mol NaOH, dissolved in 20ml of deionized water, stirred for 15min, and the stirred NaOH solution was slowly dripped with a dropper MnCl added to stirring 2 solution, continue to stir for 10 minutes, transfer the obtained suspension to a 50ml polytetrafluoroethylene-lined reaction kettle, put it in an electric heating constant temperature drying oven at 150 ° ...

Embodiment 3

[0040] In order to solve the problems of the technologies described above, the present invention is realized in the following manner,

[0041] Preparation of NiMn by Electrochemical Ion Exchange Method 2 o 4 / Mn 3 o 4 Multi-component composite metal oxide. Prepare a square nickel foam (1×1cm) and ultrasonically clean it with absolute ethanol for 15 minutes, dry it at a constant temperature of 60°C for 15 minutes, weigh and record its mass, and weigh 0.02mol MnCl 2 4H 2 O was dissolved in 20ml of deionized water and put into 3 pieces of dry nickel foam, stirred for 30min, and another beaker was taken to weigh 0.02mol NaOH, dissolved in 20ml of deionized water, stirred for 15min, and the stirred NaOH solution was slowly dripped with a dropper MnCl added to stirring 2 solution, continue to stir for 10 minutes, transfer the obtained suspension to a 50ml polytetrafluoroethylene-lined reaction kettle, put it in an electric heating constant temperature drying oven at 150 ° C fo...

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PUM

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Abstract

The Mn3O4 / NiMn2O4 composite structure and the pure substance NiMn2O4 are prepared to serve as the supercapacitor electrode, the two structures serve as the electrode, the electrochemical performance is greatly improved, and the cost of the electrode material can be greatly reduced; the preparation technology of NiMn2O4 is mainly a high-temperature solid-phase reaction or solvothermal combined subsequent calcination oxidation method. The application of the electrochemical ion exchange technology or the electrochemical ion exchange technology in the aspect is rarely reported, the Mn3O4 / NiMn2O4 composite structure and the pure substance NiMn2O4 are prepared by using electrochemical ion exchange, the time is short, the temperature is low, the operation is simple and pollution is avoided.

Description

technical field [0001] The invention relates to the technical field of testing, in particular to a method for preparing electrode materials by an electrochemical ion exchange method and the electrode materials. Background technique [0002] In the field of energy storage, manganese oxide materials have a very wide range of applications and research. The main reasons are as follows: First, manganese element Mn is a transition metal element with five unpaired electrons, therefore, manganese element has the most oxidation states, including the highest oxidation state (VII) in the entire periodic table. The unique electronic structure of manganese element makes Mn have extremely strong redox activity, so it can exist in many different oxidation states, and can form various oxides with different crystal forms, such as MnO, Mn 3 o 4 , Mn 3 o 4 , MnO, MnO 3 and Mn 2 o 7 . Secondly, compared with other transition metal elements (such as Ru, Ni, Co) whose oxides are pseudocap...

Claims

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Application Information

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IPC IPC(8): C01G53/00C01G45/02C01G45/00H01G11/46
CPCC01G53/44C01G53/003C01G45/02C01G45/003H01G11/46C01P2004/03C01P2002/72C01P2006/40Y02E60/13
Inventor 朱慧灵陈镜伦张萌刘瑞郑聪
Owner SHANDONG UNIV OF SCI & TECH
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