Preparation method of copper sulphide nano-powder with different stoichiometric ratios

A stoichiometric ratio and nano-powder technology, applied in the field of nanomaterials, can solve the problems of difficult separation of products, expensive raw materials, complicated processes, etc., and achieve the effects of controllable stoichiometric ratio, easy availability of raw materials, and short process flow.

Inactive Publication Date: 2012-01-18
UNIV OF SCI & TECH BEIJING
View PDF6 Cites 24 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In short, the existing methods for synthesizing copper sulfide nanopowders have the following disadvantages: raw materials are expensive, the process is cumbersome, time-consuming, the product is difficult to separate, and the yield is not high, and these preparation methods are...

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Preparation method of copper sulphide nano-powder with different stoichiometric ratios
  • Preparation method of copper sulphide nano-powder with different stoichiometric ratios

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0011] According to the molar ratio: elemental copper: elemental sulfur = 2.5:1 configuration, weigh the copper powder and sulfur powder of the corresponding mass, put them in a ball mill jar, put stainless steel balls with a ball-to-material ratio of 20:1, seal, and vacuumize. After being filled with argon protective gas, the copper sulfide (Cu 2.5 S) Nanopowder.

example 2

[0013] According to the molar ratio: elemental copper: elemental sulfur = 2.2:1 configuration, weigh the copper powder and sulfur powder of the corresponding mass, put them in a ball mill jar, put in a stainless steel ball with a ball-to-material ratio of 20:1, seal it, and vacuumize it. After being filled with argon protective gas, the copper sulfide (Cu 2.2 S) Nanopowder.

example 3

[0015] According to the molar ratio: elemental copper: elemental sulfur = 2:1 configuration, weigh the copper powder and sulfur powder of the corresponding mass, put them in a ball mill jar, put in a stainless steel ball with a ball-to-material ratio of 20:1, seal it, and vacuumize it. After being filled with argon protective gas, the copper sulfide (Cu 2 S) Nanopowder.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
Particle sizeaaaaaaaaaa
Particle sizeaaaaaaaaaa
Login to view more

Abstract

The invention discloses a preparation method of copper sulphide nano-powder with different stoichiometric ratios, and belongs to the technical field of nanometer materials. The preparation method is characterized in that elemental copper powder (having a mass fraction above 99.9%) and elemental sulfur power (with a mass fraction above 99.8%) are utilized as raw materials and mixed according to a general chemical formula of Cu2-xS, wherein x is great than or equal to -0.5 and less than or equal to 1.5; and the mixture is subjected to ball-milling at a ball-milling rate of 100 to 425rpm in an argon atmosphere for 5 to 600 minutes to obtain stoichiometric ratio-adjustable single-phase copper sulphide nano-powder with particle sizes of 1 to 500 nanometers. The preparation method has the advantages of cheap and easily available raw materials, simple equipment, good operability of equipment, short process flow, convenience and quickness of large-scale production of copper sulphide nano-powder with different stoichiometric ratios, and wide application prospects.

Description

technical field [0001] The invention belongs to the technical field of nanometer materials, in particular to a method for preparing copper sulfide nanopowders with different stoichiometric ratios, and to mechanical alloying technology. Background technique [0002] Compared with traditional materials, nanomaterials have excellent magnetic, optical, electrical, acoustic and mechanical properties, and have attracted more and more attention. Transition metal sulfides are a class of functional materials with a wide range of applications. Nano-sized copper sulfide powder has a small particle size and a large specific surface area. Due to the quantum size effect, surface effect and macroscopic quantum tunneling effect, its semiconductor nanocrystals have the role of conducting electrons between molecular entities and microcrystals, and have a bulk Copper sulfide nanopowder is an important photoelectric material, which is used in solar cell materials, photothermal conversion cover...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C01G3/12B82Y40/00
Inventor 张波萍葛振华于昭新刘勇
Owner UNIV OF SCI & TECH BEIJING
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap