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Manganese dioxide/manganese oxide/carbon composite material and preparation method thereof

A technology of carbon composite materials and manganese dioxide, which is applied in the direction of manganese oxide/manganese hydroxide, carbon preparation/purification, electrical components, etc., can solve the problem of single valence state of manganese element, and achieve the purpose of avoiding the appearance and performance, and the preparation The effect of low temperature and simple preparation method

Inactive Publication Date: 2020-06-19
LINGNAN NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The technical problem to be solved by the present invention is to overcome the defects and shortcomings of the single valence state of manganese element in the preparation of composite materials in the prior art, and provide a manganese dioxide / manganese oxide / carbon composite material, the manganese element of the composite material has multiple valence states

Method used

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  • Manganese dioxide/manganese oxide/carbon composite material and preparation method thereof
  • Manganese dioxide/manganese oxide/carbon composite material and preparation method thereof
  • Manganese dioxide/manganese oxide/carbon composite material and preparation method thereof

Examples

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Embodiment 1

[0058] A manganese dioxide / manganese oxide / carbon composite material is a coating structure, wherein the inner layer material is manganese dioxide material, and the outer layer material is manganese oxide / carbon material.

[0059] A preparation method of manganese dioxide / manganese oxide / carbon composite material, comprising the steps of:

[0060] S1. Cetyltrimethylammonium bromide, n-propanol, and n-hexane are continuously stirred to form solution A, and the mass ratio of cetyltrimethylammonium bromide, n-propanol, and n-hexane is 1 :0.5:0.5;

[0061] S2. Manganese sulfate, aerosol OT, ethanol aqueous solution are formed solution B under continuous stirring, and the mass ratio of the ethanol in manganese sulfate, aerosol OT, ethanol aqueous solution is 5.0 * 10 -4 : 6.2×10 -4 : 0.094, add solution B dropwise to solution A, mix until clear, continue to stir until the second time clear to form microemulsion C, the concentration of manganese sulfate in solution B is 0.0065mol / ...

Embodiment 2

[0065] A manganese dioxide / manganese oxide / carbon composite material is a coating structure, wherein the inner layer material is manganese dioxide material, and the outer layer material is manganese oxide / carbon material.

[0066] The preparation method of this example is the same as that of Example 1, except that the ratio of manganese dioxide, potassium permanganate and glucose in step S4 is 1:0.76:1.90.

Embodiment 3

[0068] A manganese dioxide / manganese oxide / carbon composite material is a coating structure, wherein the inner layer material is manganese dioxide material, and the outer layer material is manganese oxide / carbon material.

[0069] The preparation method of this example is the same as that of Example 1, except that the ratio of manganese dioxide, potassium permanganate and glucose in step S4 is 1:0.46:1.69.

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Abstract

The invention discloses a manganese dioxide / manganese oxide / carbon composite material and a preparation method thereof, the composite material is a coating structure, the inner layer material is a manganese dioxide material, and the outer layer material is a manganese oxide / carbon material. The mole ratio of manganese dioxide to potassium permanganate to a carbon source substance and the reactiontemperature and time are controlled so that the manganese dioxide / manganese oxide / carbon composite material is obtained and has a coating structure, the manganese oxide / carbon composite material is used as an outer layer material, an inner layer material is unreduced manganese dioxide and is positive tetravalent, an outer layer manganese oxide material is positive divalent, and a manganese elementof the composite material has a mixed valence state. The preparation method is simple and convenient and is easy for rapid large-scale preparation, and manganese dioxide prepared by a microemulsion method is uniform in size and large in specific surface area.

Description

technical field [0001] The invention relates to the technical field of nanocomposite materials, and more specifically, to a manganese dioxide / manganese oxide / carbon composite material and a preparation method thereof. Background technique [0002] Manganese oxides and hydroxides are an important class of functional materials, which are widely used in the fields of positive electrode materials, ion exchangers, catalysts, desulfurization and removal of soluble iron and manganese in water. Studies in recent years have shown that various synthetic and natural manganese oxides and hydroxides have strong adsorption and removal capabilities, and they also have pore effects, catalytic effects, redox effects, and nano-effects. Therefore, as a class of new environmental materials with important application prospects, it has aroused people's attention and strong research interest. [0003] With the rapid development of modern society, the limitations of a single material itself can no...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G45/02C01B32/05H01M4/36H01M4/505H01M4/583H01M4/62
CPCC01B32/05C01G45/02C01P2004/32C01P2004/61C01P2004/62C01P2004/80C01P2006/12H01M4/366H01M4/505H01M4/583H01M4/625Y02E60/10
Inventor 徐旭耀陈芳范旭良孔令利刘光泳胡忆蓉黄丽娟欧俊文袁斌斌黄韵娜
Owner LINGNAN NORMAL UNIV
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