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

Preparation method of manganese sulfide nano material

A nanomaterial, manganese sulfide technology, applied in nanostructure manufacturing, chemical instruments and methods, nanotechnology and other directions, can solve the problems of product performance impact, irregular shape, high production cost, easy operation, simple method, Easy-to-control effects

Inactive Publication Date: 2009-10-14
SHANGHAI JIAO TONG UNIV
View PDF0 Cites 17 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these methods all use complex surface modifiers and ethanol, which makes the production cost relatively high, and some products have irregular shapes or even agglomerates, which have a great impact on the performance of the product

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 manganese sulfide nano material
  • Preparation method of manganese sulfide nano material
  • Preparation method of manganese sulfide nano material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Inject 10 ml of pure water into a 50 ml beaker, dissolve 1 mmol of manganese chloride in water to form a clear solution, and then dissolve 35 mmol of hydrazine monohydrate therein to obtain solution a. Another 50 ml beaker was injected with 10 ml of pure water, and 1.5 mmol of sodium sulfide was dissolved in water to obtain solution b. Mix and stir solution a and solution b for 30 minutes, then transfer to a 35 ml stainless steel autoclave containing polytetrafluoroethylene liner, add pure water to 70% to 90% of the volume of the autoclave, seal the autoclave, and put React in a high-temperature oven at 180°C for 12 hours. After natural cooling, the obtained product was washed and centrifuged several times with pure water and ethanol, and then dried in an oven at 60° C. for 6 hours to obtain α-MnS nanomaterials. figure 1 It is a scanning electron micrograph of the nano-octahedron prepared in this embodiment.

Embodiment 2

[0026] Inject 10 ml of pure water into a 50 ml beaker, dissolve 1 mmol of manganese chloride in water to form a clear solution, and then dissolve 35 mmol of hydrazine monohydrate therein to obtain solution a. Another 50 ml beaker was injected with 10 ml of pure water, and 1.5 mmol of sodium sulfide was dissolved in water to obtain solution b. Mix and stir solution a and solution b for 30 minutes, then transfer to a 35 ml stainless steel autoclave containing polytetrafluoroethylene liner, add pure water to 70% to 90% of the volume of the autoclave, seal the autoclave, and put React in a high-temperature oven at 180°C for 6 hours. After natural cooling, the obtained product was washed and centrifuged several times with pure water and ethanol, and then dried in an oven at 60° C. for 6 hours to obtain α-MnS nanomaterials. The scanning electron micrographs of nanoparticles prepared in this embodiment are similar to figure 1 .

Embodiment 3

[0028] Inject 10 ml of pure water into a 50 ml beaker, dissolve 1 mmol of manganese chloride in water to form a clear solution, and then dissolve 35 mmol of hydrazine monohydrate therein to obtain solution a. Another 50 ml beaker was injected with 10 ml of pure water, and 1.5 mmol of sodium sulfide was dissolved in water to obtain solution b. Solution a and solution b were mixed and stirred for 30 minutes and then transferred to a stainless steel autoclave with a polytetrafluoroethylene liner with a volume of 35 milliliters, and pure water was added to 70% to 90% of the volume of the kettle. The kettle was sealed and put into a high-temperature oven at 120°C to react for 12 hours. After natural cooling, the obtained product was washed and centrifuged several times with pure water and ethanol, and then dried in an oven at 60° C. for 6 hours to obtain α-MnS nanomaterials. The scanning electron micrographs of nanoparticles prepared in this embodiment are similar to figure 1 . ...

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

No PUM Login to View More

Abstract

The invention relates to a preparation method of manganese sulfide nano material, belonging to the inorganic nano material field. The preparation method comprises the following steps of: step 1. preparing solution a and solution b, wherein, solution a: dissolving manganese chloride in pure water, adding a modifying agent, stirring and forming solution a, solution b: dissolving sodium sulfide in pure water and forming solution b; step 2. mixing solution a and solution b in the step 1 according to the molar ratio of the manganese chloride and the sodium sulfide of 2:3; stirring, transferring the mixed solution into a high-pressure kettle containing a polyfluortetraethylene liner, reacting for 6 to 12 hours under the temperature of 120 to 180 DEG C, and naturally cooling; and step 3. washing the products obtained in the step 2 after cooling, drying thereby obtaining the manganese sulfide nano material. The method has simple and convenient operation, high yield and uniform and controllable crystal types and appearance of products and the like.

Description

technical field [0001] The invention relates to a preparation method in the field of inorganic nanometer materials, in particular to a preparation method of manganese sulfide nanomaterials. technical background [0002] MnS is a weakly magnetic semiconductor material of the VIIB-VIA family, with a bandgap width of 3.7eV. It has potential applications in the preparation of window / buffer materials for solar cells and short-wave optoelectronic devices. Therefore, in recent years, the research on the preparation of nano-MnS has attracted widespread attention. MnS generally has three crystal forms of α-, β-, and γ-. Green α-MnS is a stable rock-salt structure, while β-MnS and γ-MnS belong to sphalerite and wurtzite structures, respectively. The metastable β-, γ-MnS is easy to transform into α-MnS at 100-400℃ or under high pressure, so the controlled synthesis of single-phase MnS has become the focus of research. The common preparation method is to obtain pure phase β-, γ-MnS un...

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): C01G45/00B82B3/00
Inventor 桂义才钱雪峰吴梦玲苏晶
Owner SHANGHAI JIAO TONG UNIV
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