Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A six -square -sized selenium -shaped microcargo powder material and its preparation method

A molybdenum diselenide, powder material technology, applied in binary selenium/tellurium compounds, nanotechnology and other directions, can solve problems such as environmental defects, and achieve the effects of simple preparation method, uniform shape and lower reaction temperature

Active Publication Date: 2019-11-26
JIANGSU UNIV OF TECH
View PDF11 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the highly toxic hydrogen selenide gas that can be produced in the preparation process of molybdenum diselenide in the prior art, and the waste after the reaction also has great defects to the environment, and provides a hexagonal flake molybdenum diselenide Preparation method of powder material

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
  • A six -square -sized selenium -shaped microcargo powder material and its preparation method
  • A six -square -sized selenium -shaped microcargo powder material and its preparation method
  • A six -square -sized selenium -shaped microcargo powder material and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] First, use elemental molybdenum powder and elemental selenium powder as raw materials, and the molar ratio of elemental molybdenum powder and elemental selenium powder is 1:2.5 and pour it into a ball mill jar, add 15mL absolute ethanol in the jar, then add steel balls in the jar, steel The total mass ratio of the ball mass to the raw material is 20:1, the rotational speed of the ball mill is set at 200 rpm, and the ball mill is performed for 10 hours. After the ball mill stops, open the ball mill tank, add co-solvent to the slurry, the mass ratio of co-solvent to the total mass of raw materials is 1:1, co-solvent includes NaCl and KCl, the molar ratio of NaCl and KCl is 1:1, and then add 8mL Anhydrous ethanol, set the speed of the ball mill to 100 rpm, and ball mill again for 30 minutes. The ball-milled slurry was poured into a beaker, and put into a drying oven for drying. The temperature of the drying oven was set at 60° C., and the drying time was 18 hours. The dri...

Embodiment 2

[0033] First, use elemental molybdenum powder and elemental selenium powder as raw materials, the molar ratio of elemental molybdenum powder and elemental selenium powder is 1:3 and pour into the ball mill jar, add 15mL absolute ethanol in the jar, add steel ball again in the jar, steel The total mass ratio of the ball mass to the raw material is 25:1, the rotational speed of the ball mill is set at 225 rpm, and the ball mill is 13 hours. After the ball mill stops, open the ball mill tank, add co-solvent to the slurry, the mass ratio of co-solvent to the total mass of raw materials is 1:1.5, co-solvent includes NaCl and KCl, the molar ratio of NaCl and KCl is 1:1, and then add 8mL Anhydrous ethanol, set the speed of the ball mill to 125 rpm, and ball mill again for 45 minutes. The ball-milled slurry was poured into a beaker, and put into a drying oven for drying. The temperature of the drying oven was set at 70° C., and the drying time was 21 hours. The dried material was pou...

Embodiment 3

[0035] First, use elemental molybdenum powder and elemental selenium powder as raw materials, and the molar ratio of elemental molybdenum powder and elemental selenium powder is 1:3.5 and pour it into the ball mill jar, add 15mL absolute ethanol in the jar, then add steel balls in the jar, steel The total mass ratio of the ball mass to the raw material is 30:1, the rotational speed of the ball mill is set at 250 rpm, and the ball mill is performed for 15 hours. After the ball mill stops, open the ball mill tank, add co-solvent to the slurry, the mass ratio of co-solvent to the total mass of raw materials is 1:2, co-solvent includes NaCl and KCl, the molar ratio of NaCl and KCl is 1:1, and then add 8mL Anhydrous ethanol, the speed of the ball mill was set to 150 rpm, and ball milled again for 60 minutes. The ball-milled slurry was poured into a beaker, and put into a drying oven for drying. The temperature of the drying oven was set at 80° C., and the drying time was 24 hours. ...

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
diameteraaaaaaaaaa
diameteraaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention belongs to a new technology for artificial crystal growth, in particular to a hexagonal flake molybdenum diselenide powder material and a preparation method thereof. The preparation method of the hexagonal flaky molybdenum diselenide powder material specifically includes the following steps: using elemental molybdenum powder and elemental selenium powder as raw materials, first adding absolute ethanol to the raw materials, mixing, ball milling for the first time, and then adding a cosolvent , the co-solvent includes NaCl and KCl, add absolute ethanol again, and then perform the second ball milling; the material after the ball milling is dried in a drying oven at 60-80°C, and the drying time is 18-24h to form a material; the material is ground into Fine powder, and then press the fine powder into pellets; put the pellets into the crucible, and then add flux NaCl and KCl to the crucible; place the crucible in a nitrogen atmosphere for calcination; cool, wash and dry the calcined material.

Description

technical field [0001] The invention belongs to a new technology for artificial crystal growth, in particular to a hexagonal flake molybdenum diselenide powder material and a preparation method thereof. Background technique [0002] In recent years, two-dimensional nanomaterials have attracted extensive attention due to their unique structures and properties and their applications in the field of micro-nanoelectronics. The representative two-dimensional nanomaterial is graphene, which has strong toughness, good electrical conductivity, high electron mobility and other properties, and has a wide range of potential applications in nanoelectronics, photonics, sensors and other fields. However, graphene's lack of bandgap limits its applications in microelectronics and optoelectronics. Two-dimensional transition metal sulfide selenides (MoS 2 、MoSe 2 、WS 2 、WSe 2 ) has a two-dimensional planar structure similar to graphene, and compared with graphene, two-dimensional transit...

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
Patent Type & Authority Patents(China)
IPC IPC(8): C01B19/04B82Y40/00
Inventor 张向华谈衡薛亚平叶霞薛茂权
Owner JIANGSU UNIV OF TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com