Preparation method of graphene-supported nano MnOOH composite material

A composite material and graphene technology, applied in chemical instruments and methods, catalyst activation/preparation, physical/chemical process catalysts, etc., can solve problems such as prone to agglomeration and affect the excellent performance of nano-effects, and achieve convenient and excellent post-processing Catalytic performance, effect of low reaction temperature
CN102145282BActive Publication Date: 2012-12-19TECH TRANSFER CENT CO LTD NANJING UNIV OF SCI & TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
TECH TRANSFER CENT CO LTD NANJING UNIV OF SCI & TECH
Publication Date
2012-12-19

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Abstract

The invention relates to a preparation method of a graphene-supported nano MnOOH composite material, which comprises the following steps: I, mixing and preparing MnCl2.4H2O, graphite oxide and isopropanol into a solution which is uniformly diffused under ultrasound; II, adding KMnO4 and water into the solution prepared in the step I, and stirring uniformly; III, performing a constant-temperature reaction on the mixed solution in the step II in a sealed condition for a certain period of time to obtain black precipitates; IV, centrifuging and washing the black precipitates obtained by the reaction, adding the product into glycol and stirring uniformly; V, performing a constant-temperature reaction on the mixed solution in the step IV in a sealed condition; and VI, centrifuging, washing, drying and grinding the product obtained by the reaction in the step V to obtain the graphene-supported nano MnOOH composite material. The preparation method provided by the invention is a soft chemical method easy to operate, and can prepare the graphene-supported nano MnOOH composite material with excellent catalytic performance under mild conditions.
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Description

technical field

[0001] The invention relates to a method for preparing a nanocomposite material, in particular to a method for preparing graphene-loaded nano MnOOH. Background technique

[0002] MnOOH is a widely studied multifunctional transition metal perhydroxide, which is widely used in catalysis, molecular absorption, system simulation and other fields, and is an important precursor of lithium-ion batteries. However, the MnOOH nanomaterials prepared by the prior art are prone to agglomeration during the application process, which seriously affects the excellent performance due to the nano-effect. Further improving the dispersion and performance of nano-MnOOH is an urgent problem to be solved.

[0003] Graphene is a two-dimensional crystal composed of a single layer of carbon atoms arranged in a honeycomb shape. It has attracted much attention due to its large specific surface area, excellent electrical conductivity and unique physical and chemical properties. There ar...

Claims

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