Silver ion pre-embedded manganese-oxygen-based nanowire as well as preparation method and application thereof

A nanomanganese oxide, silver manganese oxide nanotechnology, applied in nanotechnology, nanotechnology, chemical instruments and methods, etc., can solve the problems of non-environmentally friendly green production, large energy consumption, cumbersome processes, etc., and achieve excellent electrochemical performance. Performance, capacity improvement, and the effect of increasing specific surface area

Pending Publication Date: 2020-11-17
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] Yu Yifu and others first prepared manganese dioxide tube material by hydrothermal method and then carried out solid phase reaction to obtain calcium manganese oxide material, but the inventors found that the process was cumbersome; and high temperature calcination required high temperature, large energy consumption and cost It is also relatively high, which does not meet the current requirements of environmental protection and green production

Method used

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  • Silver ion pre-embedded manganese-oxygen-based nanowire as well as preparation method and application thereof
  • Silver ion pre-embedded manganese-oxygen-based nanowire as well as preparation method and application thereof
  • Silver ion pre-embedded manganese-oxygen-based nanowire as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] (1) Preparation of manganese dioxide precursor

[0055] Dissolve manganese sulfate and potassium permanganate in deionized water at a ratio of 3:2, heat in an oil bath at 80°C by magnetic stirring to obtain a precipitated product, keep it warm for 3 hours, wash it centrifugally, and dry it in vacuum to obtain manganese dioxide powder.

[0056] (2) Preparation of silver manganese oxide material

[0057] Mix the manganese dioxide precursor and silver nitrate obtained in step (1) at a ratio of 4:1, put them into a reaction kettle, and carry out hydrothermal reaction with water as the medium. The product is subjected to centrifugal washing, and vacuum-dried at 100° C. for 10 hours to obtain a silver-manganese-oxygen material, and the length of the silver-manganese-oxygen nanowires obtained under this condition is 0.1-1 micron.

Embodiment 2

[0059] (1) Preparation of manganese dioxide precursor

[0060] Dissolve manganese sulfate and potassium permanganate in deionized water at a ratio of 3:2, heat in an oil bath at 80°C by magnetic stirring to obtain a precipitated product, keep it warm for 3 hours, wash it centrifugally, and dry it in vacuum to obtain manganese dioxide powder.

[0061] (2) Preparation of silver manganese oxide material

[0062] Mix the manganese dioxide precursor and silver nitrate obtained in step (1) at a ratio of 4:1, put them into a reaction kettle, and carry out hydrothermal reaction with water as the medium. The product is washed by centrifugation and vacuum-dried at 100° C. for 10 hours to obtain a silver manganese oxide material, and the length of the silver manganese oxide nanowire obtained under this condition is 1-5 microns.

Embodiment 3

[0064] (1) Preparation of manganese dioxide precursor

[0065] Dissolve manganese sulfate and potassium permanganate in deionized water at a ratio of 3:2, heat in an oil bath at 80°C by magnetic stirring to obtain a precipitated product, keep it warm for 3 hours, wash it centrifugally, and dry it in vacuum to obtain manganese dioxide powder.

[0066] (2) Preparation of silver manganese oxide material

[0067] Mix the manganese dioxide precursor and silver nitrate obtained in step (1) at a ratio of 2:1, put them into a reaction kettle, and carry out hydrothermal reaction with water as the medium. The product is subjected to centrifugal washing, and vacuum-dried at 100° C. for 10 hours to obtain a silver-manganese-oxygen material, and the length of the silver-manganese-oxygen nanowires obtained under this condition is 1-10 microns.

[0068] figure 1 It is the XRD comparison chart of the manganese dioxide prepared in embodiment 3 and the silver manganese oxide material after si...

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Abstract

The invention belongs to the field of nano material preparation, and relates to a silver ion pre-embedded manganese-oxygen-based nanowire as well as a preparation method and application thereof. The preparation method comprises the following steps that firstly, a proper manganese dioxide material is prepared as a precursor, manganese sulfate and potassium permanganate are selected as raw materials, and a manganese dioxide nanorod-like material is prepared as a precursor of subsequent hydrothermal reaction by adopting a precipitation method; a hydrothermal synthesis method is adopted to synthesize and prepare the silver ion pre-embedded manganese-oxygen-based material, the hydrothermal synthesis method has the advantages of simplicity in operation, controllable reaction conditions, uniformparticle size of the obtained nano material and the like, morphology regulation and control are performed by reasonably controlling reaction time and reaction temperature, and finally, expected morphology is obtained.

Description

technical field [0001] The invention belongs to the technical field of nanomaterial preparation, and in particular relates to a silver ion pre-embedded manganese oxide nanowire and a preparation method thereof. Background technique [0002] The information disclosed in this background section is only intended to increase the understanding of the general background of the present invention, and is not necessarily taken as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to those skilled in the art. [0003] In recent years, with the increasing demand for energy in society, non-renewable energy has been gradually consumed, which has also brought about serious environmental pollution problems. Therefore, it is necessary to develop renewable energy and establish a stable, efficient and sustainable clean energy storage and conversion system to solve the above problems. However, the conversion efficiency of renewable energy ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G45/00H01M4/50H01M4/54B82Y30/00B82Y40/00
CPCB82Y30/00B82Y40/00C01G45/00C01P2002/72C01P2002/85C01P2004/03C01P2004/04C01P2004/16C01P2006/40H01M4/502H01M4/54Y02E60/10
Inventor 慈立杰郝重阳陈丽娜
Owner SHANDONG UNIV
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