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Preparation method of bamboo joint structure Mn2O3

A technology of bamboo joints and solutions, applied in the field of materials science, can solve the problems of unfavorable high-power charging and discharging, low specific capacity of manganese oxide, etc., and achieve the effects of improving effective utilization, facilitating industrial production, and increasing conductivity

Inactive Publication Date: 2017-02-15
SHANGHAI INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the above technical problems in the prior art, the invention provides a bamboo structure Mn 2 o 3 The preparation method, described this bamboo structure Mn 2 o 3 The preparation method should solve the technical problem that the manganese oxide prepared by the method in the prior art has a low specific capacity and is unfavorable for high-power charging and discharging

Method used

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Effect test

Embodiment 1

[0022] The invention provides a bamboo structure Mn 2 O 3 The preparation method includes the following steps:

[0023] 1) The step of preparing the rod-shaped metal organic framework material Mn-MOF precursor by the method of directing agent-assisted solvent evaporation; including the following steps:

[0024] a) Dissolve trimesic acid in an ethanol solution with a volume fraction of 50% to prepare a trimesic acid solution with a solution concentration of 0.04 mol / L;

[0025] b) Dissolve manganese acetate tetrahydrate in an ethanol solution with a volume fraction of 50%, so that the concentration of the solution is 0.02mol / L;

[0026] c) Then weigh the directing agent, said directing agent is polyvinylpyrrolidone, polyethylene glycol 600, emulsifier alkyl polyoxyethylene (10) ether (OP-10), its mass is 3% of the manganese acetate solution ; Among them, the mass ratio of polyvinylpyrrolidone, polyethylene glycol 600 and emulsifier alkyl polyoxyethylene (10) ether (OP-10) is 2:1:1;

[0...

Embodiment 2

[0031] The invention provides a bamboo structure Mn 2 O 3 The preparation method includes the following steps:

[0032] 1) The step of preparing the rod-shaped metal organic framework material Mn-MOF precursor by the method of directing agent-assisted solvent evaporation; including the following steps:

[0033] a) Dissolve trimesic acid in an ethanol solution with a volume fraction of 50% to prepare a trimesic acid solution with a solution concentration of 0.04 mol / L;

[0034] b) Dissolve manganese acetate tetrahydrate in an ethanol solution with a volume fraction of 50%, so that the concentration of the solution is 0.02mol / L;

[0035] c) Then weigh the directing agent, said directing agent is polyvinylpyrrolidone, polyethylene glycol 600, emulsifier alkyl polyoxyethylene (10) ether (OP-10), its mass is 3% of the manganese acetate solution ; Among them, the mass ratio of polyvinylpyrrolidone, polyethylene glycol 600 and emulsifier alkyl polyoxyethylene (10) ether (OP-10) is 2:1:1;

[0...

Embodiment 3

[0040] The invention provides a bamboo structure Mn 2 O 3 The preparation method includes the following steps:

[0041] 1) The step of preparing the rod-shaped metal organic framework material Mn-MOF precursor by the method of directing agent-assisted solvent evaporation; including the following steps:

[0042] a) Dissolve trimesic acid in an ethanol solution with a volume fraction of 50% to prepare a trimesic acid solution with a solution concentration of 0.04 mol / L;

[0043] b) Dissolve manganese acetate tetrahydrate in an ethanol solution with a volume fraction of 50%, so that the concentration of the solution is 0.02mol / L;

[0044] c) Then weigh the directing agent, said directing agent is polyvinylpyrrolidone, polyethylene glycol 600, emulsifier alkyl polyoxyethylene (10) ether (OP-10), its mass is 3% of the manganese acetate solution ; Among them, the mass ratio of polyvinylpyrrolidone, polyethylene glycol 600 and emulsifier alkyl polyoxyethylene (10) ether (OP-10) is 2:1:1;

[0...

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Abstract

The invention provides a preparation method of bamboo joint structure Mn2O3. According to the method, at first, rod-metal organic framework material Mn-MOF precursors are prepared by a guide agent assisting solvent volatilization method; then, in the air environment, the Mn-MOF precursors are calcined; the calcining temperature is controlled to be 400 to 650 DEG C; the time is 2 to 4h; finally, the materials are cooled to the room temperature along with the furnace temperature; the bamboo joint structure Mn2O3 nanometer structure materials can be obtained. The method provided by the invention has the advantages that the operation is simple; the process cost is low; the appearance is regular; the product stability is high, and the like. The industrial production is facilitated. The bamboo joint structure Mn2O3 nanometer structure material obtained by the method has the advantages of good conductivity and great specific surface area; the electrode resistance can be favorably reduced; the materials can be used for supercapacitor electrode materials.

Description

Technical field [0001] The invention belongs to the field of materials science, and relates to an electrode material of a supercapacitor, specifically a bamboo structure Mn 2 O 3 The preparation method. Background technique [0002] With the further development of society, environmental and energy issues have become more and more prominent. Therefore, people urgently need an environmentally friendly and sustainable form of energy storage. As a new type of clean energy component, supercapacitors have a very wide range of application fields and a huge potential market, and they have also received extensive attention from governments and enterprises. According to the different energy storage principles, supercapacitors can be divided into electric double-layer capacitors and pseudocapacitors. The electrode materials of pseudocapacitors are metal oxide and conductive polymer. As a typical representative of metal oxides, the preparation method, structural characteristics and reactio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G45/02B82Y40/00
CPCC01G45/02C01P2002/72C01P2004/03C01P2006/40
Inventor 张建勇丁艳花张小磊史军霞张娜房永征
Owner SHANGHAI INST OF TECH
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