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Method for synthesizing MnS micrometer powder with controllable morphology

A synthesis method, micron powder technology, applied in chemical instruments and methods, manganese compounds, inorganic chemistry, etc., can solve the problems that have not been reported in the literature, and achieve the effect of low cost, dispersion without agglomeration, and uniform particle size

Active Publication Date: 2018-07-31
HEFEI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, there are no reports in the literature on the controllable synthesis of manganese sulfide powders with different shapes.

Method used

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  • Method for synthesizing MnS micrometer powder with controllable morphology
  • Method for synthesizing MnS micrometer powder with controllable morphology
  • Method for synthesizing MnS micrometer powder with controllable morphology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] (1) Weigh 1mmol of MnCl with an electronic balance at room temperature 2 4H 2 O, weigh 2 mmol of Na 2 S·9H 2 0. Transfer the weighed medicine into the beaker, measure 10mL of deionized water with a graduated cylinder and add it to the beaker, put it into a magnet, and place the beaker on a magnetic stirrer to stir for 20min.

[0023] (2) Transfer the dissolved solution to a polytetrafluoroethylene-lined high-temperature and high-pressure reaction kettle, tighten the lid of the reaction kettle, and put the high-temperature and high-pressure reaction kettle into an electric heating constant temperature blast drying oven to heat, and the temperature is set at 200°C , The heating time is 24h.

[0024] (3) After the reaction is finished, wait for the reaction kettle to cool down to room temperature and then turn off the power supply of the electric heating constant temperature blast drying oven, and then take the reaction kettle out of the electric heating constant temper...

Embodiment 2

[0029] (1) Weigh 1mmol of MnCl with an electronic balance at room temperature 2 4H 2 O, weigh 4 mmol of Na 2 S·9H 2 0, transfer the weighed medicine into the beaker, measure 8mL of deionized water with a graduated cylinder and add it to the beaker, put into the magnet, and place the beaker on a magnetic stirrer to stir for 20min.

[0030] (2) Transfer the dissolved solution to a polytetrafluoroethylene-lined high-temperature and high-pressure reaction kettle, tighten the lid of the reaction kettle, and put the high-temperature and high-pressure reaction kettle into an electric heating constant temperature blast drying oven to heat, and the temperature is set at 180°C , The heating time is 10h.

[0031] (3) After the reaction is finished, wait for the reaction kettle to cool down to room temperature and then turn off the power supply of the electric heating constant temperature blast drying oven, and then take the reaction kettle out of the electric heating constant temperat...

Embodiment 3

[0036] (1) Weigh 1mmol of MnCl with an electronic balance at room temperature 2 4H 2 O, weigh 6 mmol of Na 2 S·9H 2 0. Transfer the weighed medicine into the beaker, measure 10mL of deionized water with a graduated cylinder and add it to the beaker, put it into a magnet, and place the beaker on a magnetic stirrer to stir for 20min.

[0037] (2) Transfer the dissolved solution to a polytetrafluoroethylene-lined high-temperature and high-pressure reaction kettle, tighten the lid of the reaction kettle, and put the high-temperature and high-pressure reaction kettle into an electric constant temperature blast drying oven for heating, and set the temperature to 160°C , The heating time is 18h.

[0038] (3) After the reaction is finished, wait for the reaction kettle to cool down to room temperature and then turn off the power supply of the electric heating constant temperature blast drying oven, and then take the reaction kettle out of the electric heating constant temperature b...

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Abstract

The invention discloses a method for synthesizing MnS micrometer powder with a controllable morphology and relates to the technical field of function energy materials. The method comprises the following steps of: dissolving manganese chloride tetrahydrate and a sulfur source in water, uniformly stirring, transferring the well-dissolved solution into a high-temperature and high-pressure reaction kettle lined with polytetrafluoroethylene, then placing in a constant-temperature blowing oven to carry out reaction, and after the reaction is complete, carrying out aftertreatment to obtain the MnS micrometer powder; the sulfur source is sodium sulfate, L-cysteine or sodium thiosulfate. The MnS micrometer powder with the controllable morphology is successively obtained by a solvent method. Shown by a series of experimental results, when Na2S.9H2O is used as the sulfur source, the product is a sheet-shaped octahedron; when Na2S2O3.5H2O is used as the sulfur source, the product is a bipyramid octahedron; when LC3H7NO2S is used as the sulfur source, the product is small-rod-shaped; the obtained product is uniform in grain size and good in dispersity and has no agglomeration.

Description

technical field [0001] The invention relates to the technical field of functional energy materials, in particular to a method for synthesizing MnS micron powder with controllable morphology. Background technique [0002] Manganese sulfide has been used in many fields in recent years. The superior electrical properties of manganese sulfide make it well utilized in solar cell materials. In addition, manganese sulfide can also be used in industrial fields such as short-wave photoelectric devices, ceramics, additive materials, coating industry, and catalytic materials; the value of manganese sulfide is maximized in these fields. Manganese sulfide includes α-MnS, β-MnS, and γ-MnS. Among them, α-MnS is green, which is a stable octahedral structure. β-MnS is a pink sphalerite structure, which is a metastable tetrahedron. γ-MnS is a pink lead-zinc ore structure, which is also a metastable tetrahedron. Different shapes and sizes of manganese sulfide have a great influence on its ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G45/00
CPCC01G45/00C01P2002/72C01P2004/03
Inventor 谢劲松王玉毛文涛汪小玉裴志苗秦艳萍
Owner HEFEI UNIV
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