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Low-temperature mechanical alloying method for preparing sulphur selenide submicro powder material

A technology of mechanical alloying and sulfur selenide, applied in the field of material chemistry, can solve the problems of unsuitable industrial scale production, low product yield, easy introduction of impurities, etc., to avoid high temperature agglomeration and growth, easy operation, cost reduction effect

Inactive Publication Date: 2012-08-01
GUILIN UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Under normal circumstances, the above-mentioned materials need to be obtained by chemical synthesis using salts as raw materials through solvothermal synthesis. This reaction rate is slow and the steps are cumbersome. Not suitable for industrial scale production

Method used

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  • Low-temperature mechanical alloying method for preparing sulphur selenide submicro powder material
  • Low-temperature mechanical alloying method for preparing sulphur selenide submicro powder material
  • Low-temperature mechanical alloying method for preparing sulphur selenide submicro powder material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Embodiment 1: (ZnS powder)

[0026] (1) With elemental Zn powder and elemental S powder as raw materials, weigh 6.53 grams of Zn powder and 3.2 grams of S powder in a molar ratio of 1:1, and weigh 583 grams according to the mass ratio of the grinding ball to the weighed raw material of 60:1. Gram balls, measure 25mL process control agent (20mL absolute ethanol + 5mL analytically pure ethylenediamine) with a graduated cylinder;

[0027] (2) Add the raw materials weighed in step (1), balls and process control agent together into a grinding tank with a volume of 500mL, feed argon as a protective gas, seal the grinding tank, and transfer the grinding tank to a planetary ball mill, The set speed is 600 rpm, and the ball milling time is 72 hours;

[0028] (3) The product obtained in step (2) was centrifugally washed 3 times with distilled water and absolute ethanol, and the product after centrifugal washing was vacuum-dried at 80° C. for 8 hours in a vacuum oven to obtain th...

Embodiment 2

[0029] Embodiment 2: (ZnSe powder)

[0030] (1) With elemental Zn powder and elemental Se powder as raw materials, weigh 6.53 grams of Zn powder and 11.84 grams of Se powder in a molar ratio of 1:1.5, and weigh 367 grams according to the mass ratio of the grinding ball to the weighed raw material of 20:1. Gram balls, measure 100mL process control agent (75mL absolute ethanol + 25mL analytically pure ethylenediamine) with a graduated cylinder;

[0031] (2) Add the raw materials weighed in step (1), balls and process control agent together into a grinding tank with a volume of 500mL, feed argon as a protective gas, seal the grinding tank, and transfer the grinding tank to a planetary ball mill, The set speed is 600 rpm, and the ball milling time is 5 hours;

[0032] (3) The product obtained in step (2) was centrifuged and washed 3 times with distilled water and absolute ethanol, and the product after centrifugal washing was vacuum-dried at 80° C. for 8 hours in a vacuum drying ...

Embodiment 3

[0033] Embodiment 3: (SnS powder)

[0034] (1) Using elemental Sn powder and elemental S powder as raw materials, weigh 11.87 grams of Sn powder and 3.84 grams of S powder in a molar ratio of 1:1.2, and weigh 628 grams according to the mass ratio of the grinding ball to the weighed raw material of 40:1. Grind the ball, and use a graduated cylinder to measure 100mL of process control agent (75mL of absolute ethanol + 25mL of analytically pure ethylenediamine).

[0035] (2) Add the raw materials weighed in step (1), balls and process control agent together into a grinding tank with a volume of 500mL, feed argon as a protective gas, seal the grinding tank, and transfer the grinding tank to a planetary ball mill, The set speed is 400 rpm, and the ball milling time is 12 hours;

[0036] (3) The product obtained in step (2) was centrifuged and washed 3 times with distilled water and absolute ethanol, and the product after centrifugal washing was vacuum-dried in a vacuum oven at 80°...

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Abstract

The invention discloses a low-temperature mechanical alloying method for preparing a sulphur selenide submicro powder material. Simple substance metal powder and simple substance non-metal powder are added into a ball mill tank and ball milled according to rated ball material ratio and set rotating speed with alcohol and amine mixing liquid serving as a process control agent, and ball mill products are washed centrifugally and dried to obtain target products. The simple substance metal powder is one of Zn powder, Sn powder and Cu powder. The simple substance non-metal powder is S powder or Sepowder. The process control agent is mixture of alcohol and amine with volume ratio as 1-20:1, the alcohol is one of ethanol, glycol, n-butyl alcohol, isobutanol, isoamylol, tert-amyl alcohol and glycerol, and the amine is one of ethylenediamine, iso-butylamine, diisopropylamine, hexamethylenediamine and triethylamine. The raw material is easy to obtain, products are pure, energy consumption is low, product appearance is easy to control, technology is simple, and the method is suitable for industrial production.

Description

technical field [0001] The invention relates to a method for preparing a sulfur selenide submicron powder material by low-temperature mechanical alloying, which belongs to the field of material chemistry, and the prepared material can be used in the fields of photoelectric devices, thin-film solar cells, and the like. Background technique [0002] Sulfur selenide submicron powder materials such as ZnS, ZnSe, SnSe, SnS, CuS and CuSe can be used to prepare thin film semiconductor materials, photoelectric conversion devices, etc. Under normal circumstances, the above-mentioned materials need to be obtained through chemical synthesis using salts as raw materials through solvothermal synthesis. This reaction rate is slow and the steps are cumbersome. Not suitable for industrial scale production. Contents of the invention [0003] The purpose of the present invention is to provide a method for preparing sulfur selenide submicron powder material by low-temperature mechanical all...

Claims

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Application Information

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IPC IPC(8): C01B19/00
Inventor 龙飞郑国源池上森莫淑一邹正光
Owner GUILIN UNIVERSITY OF TECHNOLOGY
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