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Method for preparing Mn3o4 hollow micronano cubic block by employing metal-organic framework (MOF) template

A hollow micro-cube technology, which is applied in the manufacture of hybrid/electric double layer capacitors and hybrid capacitor electrodes, can solve the problems of unfavorable large-scale application, complex preparation process and high cost of hollow structure metal oxides, and achieve cheap reaction raw materials , easy to remove, template synthesis simple effect

Inactive Publication Date: 2017-09-01
XINJIANG UNIVERSITY
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Problems solved by technology

However, the preparation process of metal oxides with hollow structures using these hard templates is complex, costly, and unfavorable for large-scale application.

Method used

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  • Method for preparing Mn3o4 hollow micronano cubic block by employing metal-organic framework (MOF) template
  • Method for preparing Mn3o4 hollow micronano cubic block by employing metal-organic framework (MOF) template
  • Method for preparing Mn3o4 hollow micronano cubic block by employing metal-organic framework (MOF) template

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Experimental program
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Embodiment 1

[0015] Synthetic MOF templates

[0016] Accurately weigh 0.1979 g of manganese chloride and 0.5 g of PVP-K30 and dissolve in 25 mL of ethanol and stir to obtain a metal salt solution, dissolve 0.2301 g of anhydrous formic acid and 0.5171 g of methylamine in alcohol solution and stir in 25 mL of ethanol to obtain a ligand solution. The metal salt solution was dropped into the ligand solution and stirred for 2 h. The final product was collected after centrifugation, washing and drying.

[0017] Synthetic Mn 3 o 4 Hollow micro-nano cubes

[0018] 0.2212 g of MOF template was accurately weighed and dispersed in 50 mL of ethanol with stirring, and then 0.004 g of NaOH was dissolved in 20 mL of ethanol. Drop the alkali solution into the MOF template dispersion liquid, under hydrothermal condition 120 o C reacted for 6 h. After the reactor was cooled to room temperature, the final product was collected after centrifugation, washing and drying.

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Abstract

The invention aims to provide a preparation method for a Mn3o4 hollow micronano cubic block. According to the method, the Mn3o4 hollow micronano cubic block can be synthesized by using a cheap raw material to prepare a metal-organic framework (MOF) template through simple liquid phase reaction and then performing alkali processing on the MOF template. Manganese chloride, an alcohol solution of methylamine and anhydrous formic acid are used as reactants, PVP-K30 is used as a surfactant, the MOF template is synthesized under a room template by liquid phase reaction, and the MOF template is processed by an alkali liquid under a hydrothermal condition to prepare the Mn3o4 hollow micronano cubic block. Liquid phase chemical reaction is taken as a basis, the MOF template is synthesized by using the cheap and available raw material, and the Mn3o4 hollow micronano cubic block is prepared by simple hydrothermal reaction. The preparation method is simple, mass production is easy to achieve, so that the preparation method has very wide application prospect.

Description

technical field [0001] The invention relates to a method for preparing Mn by using MOF template 3 o 4 Method for hollow micro-nanocubes. Background technique [0002] Since the beginning of the 21st century, problems such as global warming, energy depletion, and environmental pollution have become increasingly serious, and human demand for energy has increased significantly. It is of great significance to solve the problems of energy shortage and environmental pollution faced by the world. In response to this problem, the development of renewable clean energy has become an important way to alleviate the world's energy and environmental pressure. As a new type of clean energy storage device, supercapacitor plays an important role in electronic devices used in our daily life, and is currently a hot research field. Currently, research on supercapacitors is focused on developing electrode materials with high power, high energy density, and low cost. [0003] The performance ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G11/46H01G11/86
CPCY02E60/13H01G11/46H01G11/86
Inventor 张丽刘志和贾殿赠
Owner XINJIANG UNIVERSITY
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