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Iron sulfur compound and its preparation method

A compound, iron sulfur technology, applied in the direction of iron sulfide, etc., can solve the problems of high risk and low synthesis amount, and achieve the effects of reducing complexity, simplifying synthesis steps, and broad application prospects

Active Publication Date: 2017-09-22
CHINA UNIV OF PETROLEUM (BEIJING)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method is more dangerous and the amount of synthesis is less

Method used

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  • Iron sulfur compound and its preparation method
  • Iron sulfur compound and its preparation method
  • Iron sulfur compound and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0072] The present embodiment provides a kind of preparation method of meteorite, comprising the following steps:

[0073] (1) Quartz packaging: Weigh 3.36g of reduced iron powder and 1.92g of sublimated sulfur powder, mix them evenly to obtain mixture a1, put it into a quartz tube to evacuate, and keep the vacuum degree in the quartz tube at 10 -6 Pa, and seal the quartz tube;

[0074] (2) Heat treatment process: heat the sealed quartz tube in a muffle furnace, heat the mixture a1 in the quartz tube to 400 °C at a rate of 4 °C / min to obtain product b1, then keep product b1 for 24 hours, and then Stop the muffle furnace, let the product b1 gradually cool down to room temperature.

[0075] (3) Sample cleaning: first, take out the product b1 after the cooling treatment from the quartz tube, and grind it fully with an agate mortar body for later use; then clean the beaker, clean it again with absolute ethanol and dry it, and put Grind the product, the CS 2 Add the solution int...

Embodiment 2

[0077] The present invention also provides a kind of preparation method of pyrite, comprising the following steps:

[0078] (1) Quartz packaging: Weigh 2.24g of nano-iron powder and 2.56g of sublimed sulfur powder, mix well to obtain mixture a2, put it into a quartz tube to evacuate, and keep the vacuum degree in the quartz tube at 10 -6 Pa, and seal the quartz tube;

[0079] (2) Heat treatment process: put the sealed quartz tube into the muffle furnace for heating, heat the mixture a2 to 400°C at a rate of 4°C / min to obtain the product b2, set the muffle furnace program, let the product b2 in 24h uniformly lowered to room temperature.

[0080] (3) Sample cleaning: firstly, the product b2 after cooling treatment is taken out from the quartz tube, and fully ground with an agate mortar body for later use; then the beaker is cleaned, cleaned again with absolute ethanol and dried, and put into the beaker Grind the product, the CS 2 Add the solution into a beaker, put it on a ma...

Embodiment 3

[0082] The present invention also provides a kind of preparation method of pyrrhotite, comprising the following steps:

[0083] (1) Quartz packaging: Weigh 3.36g of nano-iron powder and 1.92g of sublimed sulfur powder, mix them evenly to obtain mixture a3, put it into a quartz tube to evacuate, and keep the vacuum degree in the quartz tube at 10 -6 Pa, and seal the quartz tube;

[0084] (2) Heat treatment process: heat the sealed quartz tube in a muffle furnace, heat the mixture a3 in the quartz tube to 400 °C at a rate of 4 °C / min to obtain the product b3, then keep the product b3 for 24 hours, and then The muffle furnace was stopped, and the product b3 was gradually cooled to room temperature.

[0085] (3) Sample cleaning: firstly, the product b3 after the cooling treatment is taken out from the quartz tube, and fully ground with an agate mortar body for later use; then the beaker is cleaned, cleaned again with absolute ethanol and dried, and put into the beaker Grind the ...

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Abstract

The invention provides a preparation method of ironic sulfides. The preparation method comprises the following steps of encapsulating iron powder and powdered sulfur into quartz tubes; performing heating and cooling treatment; then adopting treatment techniques of grinding, ultrasonic operation, centrifuging, drying and the like for products, thus finally obtaining the ironic sulfides. The invention also provides the ironic sulfides such as meteoric iron, pyrite, pyrrhotite and the like prepared by the preparation method. According to the preparation method provided by the invention, the ironic sulfides such as the meteoric iron, the pyrite, the pyrrhotite and the like can be synthesized at high yield by adopting a simple solid-phase synthesis method and the quartz tubes of large capacities; a reaction raw material adopts iron powder with abundant reserves, so that the triviality of reaction is greatly reduced; a reaction system is closed, so that the pollution to a surrounding environment is avoided; the prepared ironic sulfides are of micro sizes, are pure and free of impurities, can be used as research materials, and have a broad application prospect.

Description

technical field [0001] The invention belongs to the technical field of inorganic compound synthesis, and mainly relates to a sulfur-iron compound and a preparation method thereof. Background technique [0002] Among various new energy sources, solar energy has the advantages of cleanliness and safety, and solar cells are effective devices that directly convert solar energy into electrical energy. It is of great significance to develop photoelectric conversion materials with high photoelectric conversion efficiency and green environmental protection. [0003] Iron sulfide-based materials have the advantages of rich raw materials, low toxicity and low cost, and are the next generation of new green energy. Among them, pyrite has a suitable forbidden band width and a high light absorption coefficient. It is the most ideal substitute product for crystalline silicon materials and has a large power supply potential. Pyrite is known as a new type of photovoltaic material that has ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01G49/12
CPCC01G49/12C01P2002/72C01P2004/03C01P2004/61C01P2006/80
Inventor 郑树启王天琪白鹏鹏梁雨轩周杰罗秉伟
Owner CHINA UNIV OF PETROLEUM (BEIJING)