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MnO doped ferroferric oxide/C graded nanosphere structure composite material and preparation method thereof

A composite material and nanosphere technology, which is applied in the directions of iron oxide/iron hydroxide, ferrous oxide, manganese oxide/manganese hydroxide, etc., can solve the problems of complicated operation and complicated steps, and achieve a short synthesis period, Low cost and easy operation

Inactive Publication Date: 2017-08-11
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, most of the methods for preparing metal oxide / carbon composite materials are two-step methods, that is, metal oxide nanoparticles are prepared first, and then compounded with organic matter or carbon materials at room temperature or high temperature to form metal oxide / carbon composites. materials or their precursors, the method has cumbersome steps and complex operations

Method used

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  • MnO doped ferroferric oxide/C graded nanosphere structure composite material and preparation method thereof
  • MnO doped ferroferric oxide/C graded nanosphere structure composite material and preparation method thereof
  • MnO doped ferroferric oxide/C graded nanosphere structure composite material and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0030] A preparation of MnO-doped Fe from ferric nitrate, manganese acetate, terephthalic acid and urea 3 o 4 The steps of @C hierarchical nanosphere structure composite material are as follows:

[0031] (1) Weigh 2 mmol of ferric nitrate, 1 mmol of manganese acetate, 3 mmol of terephthalic acid, and 5 mmol of urea, respectively.

[0032] (2) Each reaction raw material that weighs is joined in the small beaker, adds DMF 40mL, H 2 O 10mL, sonicate for 30min to disperse and dissolve each substance in the mixed solvent to form a cloudy reaction solution.

[0033] (3) Transfer the reaction turbid liquid into a stainless steel reaction kettle with Teflon lining, and react in a high-temperature oven at 150° C. for 3 hours.

[0034] (4) After the reaction, the reactor was naturally cooled to room temperature, and the obtained tan powder was washed several times with deionized water and absolute ethanol, and then dried at 60° C. overnight.

[0035] (5) Under an argon atmosphere, t...

Embodiment 2

[0037] A preparation of MnO-doped Fe from ferric nitrate, manganese sulfate, terephthalic acid and urea 3 o 4 The steps of @C hierarchical nanosphere structure composite material are as follows:

[0038] (1) Weigh 2 mmol of ferric nitrate, 1 mmol of manganese sulfate, 3 mmol of terephthalic acid, and 5 mmol of urea, respectively.

[0039] (2) Each reaction raw material that weighs is joined in the small beaker, adds DMF 40mL, H 2 O 10mL, sonicate for 30min to disperse and dissolve each substance in the mixed solvent to form a cloudy reaction solution.

[0040] (3) Transfer the reaction turbid liquid into a stainless steel reaction kettle with Teflon lining, and react in a high-temperature oven at 180° C. for 2 hours.

[0041] (4) After the reaction, the reactor was naturally cooled to room temperature, and the obtained tan powder was washed several times with deionized water and absolute ethanol, and then dried at 60° C. overnight.

[0042] (5) Under an argon atmosphere, t...

Embodiment 3

[0044] A preparation of MnO-doped Fe from ferric nitrate, manganous chloride, terephthalic acid and urea 3 o 4 The steps of @C hierarchical nanosphere structure composite material are as follows:

[0045] (1) Weigh 2 mmol of ferric nitrate, 1 mmol of manganous chloride, 3 mmol of terephthalic acid, and 5 mmol of urea, respectively.

[0046] (2) Each reaction raw material that weighs is joined in the small beaker, adds DMF 40mL, H 2 O 10mL, ultrasonic for 30min to disperse and dissolve each substance in the mixed solvent to form a reaction turbid solution.

[0047] (3) Transfer the reaction turbid liquid into a stainless steel reaction kettle with Teflon lining, and react in a high-temperature oven at 150° C. for 3 hours.

[0048] (4) After the reaction, the reactor was naturally cooled to room temperature, and the obtained tan powder was washed several times with deionized water and absolute ethanol, and then dried at 60° C. overnight.

[0049] (5) Under an argon atmospher...

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Abstract

The invention discloses a MnO doped Fe3O4@C graded nanosphere structure composite material and a preparation method thereof. The material is provided with a nanosphere structure formed by self-assembling MnO uniformly-doped ferroferric oxide nanoparticles with surfaces uniformly coated with carbon layers. The preparation method includes the preparation steps: firstly, preparing Mn doped MOFs material nanospheres; secondly, performing one-step heat treatment by taking the Mn doped MOFs material nanospheres as precursors to obtain the MnO doped Fe3O4@C graded nanosphere structure composite material. The method is novel in idea, simple and convenient in operation, short in synthesis period and low in cost, and the prepared MnO doped Fe3O4@C graded nanosphere structure composite material has a great application potential in the field of energy storage of lithium batteries, sodium batteries and the like.

Description

technical field [0001] The invention belongs to the field of inorganic nanocomposite materials, and is a kind of MnO-doped Fe prepared by using iron salt, manganese salt, terephthalic acid and urea as raw materials. 3 o 4 @C A method for hierarchical nanosphere structure composite materials, especially a method for preparing metal oxide / carbon hierarchical nanosphere structure composite materials with novel scheme, simple operation, short synthesis cycle and low cost. Background technique [0002] Metal-Organic Frameworks (MOFs) are a type of crystalline porous structure with a periodic network structure formed by self-assembly of inorganic metal centers (metal ions or metal clusters) and bridging organic ligands. Material. Due to the characteristics of such materials as porous, large specific surface area, rich and diverse structures, and multi-metal sites, they have been widely used in many fields, such as gas adsorption and storage, molecular separation, catalysis, magn...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G45/02C01G49/08C01B32/15H01M4/36H01M4/48H01M4/50H01M4/62H01M10/052H01M10/054
CPCC01G45/02C01G49/08C01P2002/72C01P2002/82C01P2004/03C01P2004/04C01P2004/32C01P2004/50C01P2004/51C01P2004/62C01P2004/64C01P2004/80H01M4/366H01M4/483H01M4/502H01M4/625H01M10/052H01M10/054Y02E60/10
Inventor 王建明何志顺王凯邵海波
Owner ZHEJIANG UNIV
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