A method for preparing manganese dioxide/carbon microsphere electrode by electrolysis of organic matter

A manganese dioxide and carbon microsphere technology, which is applied in the field of material chemistry, can solve the problems of complex manganese dioxide/carbon microsphere electrode process and high energy consumption, and achieves remarkable technological progress, shortens the production process, and improves the production efficiency. Effect
CN105304355BInactive Publication Date: 2017-03-22SHANGHAI INST OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHANGHAI INST OF TECH
Publication Date
2017-03-22
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a method for preparing a manganese dioxide / carbon microsphere electrode by an organic matter electrolytic process. The method comprises the following steps: with inert electrodes as a cathode and an anode, and a water solution containing an organic reagent and manganate as an electrolyte, carrying out an electrolysis in a constant-voltage manner, wherein the voltage is 1V to 300V and the control temperature is 25-90 DEG C; and washing the product obtained from the cathode with deionized water after electrolysis is ended, and then drying the product to obtain the manganese dioxide / carbon microsphere electrode. In the water solution containing the organic reagent and the manganate, the concentration of manganese ions is 0.001-0.01mol / L; the volume concentration of the organic reagent is 0.05-0.5; and the organic reagent is one or a mixture of more than two of n-methyl pyrrolidone, methanol, ethanol or acetone. According to the method disclosed by the invention, catalytic action of Mn ions is adopted in a preparation process, so that decomposition voltage of an organic matter is reduced; the method has the effects of safety and low energy consumption; the deposition rate of the material is effectively improved; and the production efficiency is improved.
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Description

technical field

[0001] The invention belongs to the field of material chemistry and relates to an electrode material for a supercapacitor, in particular to a manganese dioxide / carbon composite material, specifically a method for preparing a manganese dioxide / carbon microsphere electrode by electrolysis of organic matter. Background technique

[0002] Supercapacitor is a new type of energy storage and conversion device, which has the advantages of high energy density, fast charge and discharge, long life, low pollution, etc. It is widely used in electric vehicles and various electronic products, and the electrode material is for its main factor affecting performance.

[0003] Currently, MnO 2 Due to its excellent electrochemical properties, it is generally considered to be the most likely RuO 2 materials of substitutes, however pure MnO 2 It has the limitations of poor conductivity and low performance utilization. The composite material of manganese dioxide / carbon microsp...

Claims

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