Preparation method and application of manganese oxide hollow fibers

A manganese oxide and hollow technology, applied in manganese oxide/manganese hydroxide and other directions, can solve the problems of insufficient environmental protection, long time consumption, etc., and achieve the effect of simple preparation method and easy large-scale production.

Inactive Publication Date: 2020-05-05
王子韩
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Problems solved by technology

[0005] Since the existing methods for preparing transition metal one-dimensional nanomaterials take a long time, use a large amount of organic solvents, and are not environmentally friendly, the purpose of the present invention is to provide a simple hard template method to solve the above problems and realize the transition The controllable preparation of metal one-dimensional nanomaterials, the present invention mainly studies transition metal one-dimensional hollow nanofiber materials represented by manganese oxide

Method used

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  • Preparation method and application of manganese oxide hollow fibers

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preparation example Construction

[0026] A kind of preparation method of manganese oxide hollow fiber, comprises the following steps in sequence:

[0027] The first step is to weigh an appropriate amount of manganese acetylacetonate and disperse it in glycerol to obtain a uniform black solution;

[0028] In the second step, add an appropriate amount of Te nanowires to the black solution in the first step, continue to stir evenly, and then transfer it to the heating reaction device;

[0029] In the third step, the mixed solution obtained in the second step is heated up to 210°C at a heating rate of 3°C / min in the heating reaction equipment, and then the heating is stopped, and the temperature is kept at this temperature for 30min, and the stirring speed of the magnet is set to 50°C. -80rpm;

[0030] In the fourth step, the reaction product obtained in the third step is washed with a mixed solution of deionized water and ethanol. After washing three times, it is dispersed in a 2M NaOH solution and transferred t...

Embodiment 1

[0032] Take by weighing 0.1g manganese acetylacetonate and disperse it in 40mL of glycerol, obtain a black solution after dispersing evenly, then transfer it to a three-necked flask and add 10mg of washed Te nanowires to continue stirring and dispersing until completely dispersed, to obtain The black solution has a silky shape visible to the naked eye, and then transferred to the heating device, and the heating rate was set to 3°C / min from room temperature to 210°C, and then kept at this temperature for 30min after the temperature was raised to 210°C. The rotating speed of the shape magnet is 55rpm. After the end, wash the reaction solution with a mixed solution of ethanol and deionized water, and then redisperse it in 2M sodium hydroxide solution and react it in a hydrothermal reactor at 150°C for 2 hours to obtain the final product — Manganese oxide hollow fibers.

Embodiment 2

[0034] Take by weighing 0.1g manganese acetylacetonate and disperse it in 40mL of glycerol, obtain a black solution after dispersing evenly, then transfer it to a three-necked flask and add 10mg of washed Te nanowires to continue stirring and dispersing until completely dispersed, to obtain The black solution has a silky shape visible to the naked eye, and then transferred to the heating device, and the heating rate was set to 3°C / min from room temperature to 210°C, and then kept at this temperature for 30min after the temperature was raised to 210°C. The rotating speed of the shape magnet is 55rpm. After the end, wash the reaction solution with a mixed solution of ethanol and deionized water, and then redisperse it in 2M sodium hydroxide solution and react it in a hydrothermal reactor at 180°C for 65 minutes to obtain the final product — Manganese oxide hollow fibers.

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Abstract

This preparation method of the manganese oxide hollow fiber is characterized by sequentially comprising the following steps: 1, weighing a proper amount of manganese acetylacetonate, and dispersing manganese acetylacetonate in glycerol to obtain a uniform black solution; 2, adding a proper amount of Te nanowires into the black solution obtained in the step 1, continuously stirring uniformly, and transferring the mixture into heating reaction equipment; 3, heating the mixed solution obtained in the step 2 to 210 DEG C in heating reaction equipment at a heating rate of 3 DEG C / min, then stoppingheating, carrying out heat preservation for 30 minutes at the temperature, and setting the stirring speed of magnetons to be 50-80 rpm; and 4, washing the reaction product obtained in the step 3 witha mixed solution of deionized water and ethanol for three times, dispersing into a 2M NaOH solution, and transferring into a hydrothermal reaction kettle to remove the template agent, thereby obtaining the final product manganese oxide hollow fiber.

Description

technical field [0001] The invention relates to the technical field of preparation of one-dimensional transition metal oxides, in particular to a preparation method and application of a manganese oxide hollow fiber. Background technique [0002] Since lijima discovered carbon nanotubes in 1991, the one-dimensional hollow structure nanomaterials represented by carbon nanotubes have attracted great interest of scientific researchers. The advantages of low mass density and better functionalized surface make this kind of material widely used in mechanical reinforcement, energy conversion and storage, catalyst, adsorbent, drug carrier and other fields. [0003] The preparation methods for one-dimensional hollow structures mainly include soft and hard template methods, electrodeposition methods, self-assembly methods, etc., among which the template method is the most representative, which has the advantages of the simplest preparation process and strong controllability. The most ...

Claims

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Application Information

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IPC IPC(8): C01G45/02
CPCC01G45/02C01P2004/03C01P2004/10
Inventor 刘风光王子韩章文峰
Owner 王子韩
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