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

Two-dimensional lamellar structure stable dispersion liquid and gel, and preparation method and application thereof

A two-dimensional sheet, structurally stable technology, applied in the field of sol-gel

Active Publication Date: 2016-01-27
SUZHOU INST OF NANO TECH & NANO BIONICS CHINESE ACEDEMY OF SCI
View PDF12 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the obtained gel is only a silica composite gel doped with these functional materials, which has great limitations in application.

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
  • Two-dimensional lamellar structure stable dispersion liquid and gel, and preparation method and application thereof
  • Two-dimensional lamellar structure stable dispersion liquid and gel, and preparation method and application thereof
  • Two-dimensional lamellar structure stable dispersion liquid and gel, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0059] Another aspect of the present invention also provides a method for preparing a gel with a stable two-dimensional sheet structure, comprising:

[0060] Adding reagents for gelling the dispersion liquid to any of the aforementioned dispersion liquids with stable two-dimensional lamellar structures, and uniformly mixing them, then allowing the formed liquid phase system to stand and gel to obtain the two-dimensional lamellae. A gel with a stable lamellar structure.

[0061] Wherein, the reagent used to make the dispersion gel includes an alkaline solution containing a surfactant and an auxiliary gelling agent.

[0062] In an implementation case, reagents such as ammonia solution containing CTAB surfactant and auxiliary gelling agents such as MTMS that can make it gel can be added to the dispersion liquid with stable two-dimensional sheet structure, and after ultrasonic stirring, static Place (preferably stand at room temperature and pressure), gel.

[0063] In a more spe...

Embodiment 1

[0091] Example 1 This implementation will list a preparation process for a stable two-dimensional graphite structure dispersion and gel, which may include the following steps:

[0092] Step 1: Mix the graphite powder precursor and ethanol (the mass ratio is controlled at about 1:4) in a ball mill tank and add agate balls, and the ball-to-material ratio is controlled at about 1:10. Turn on the ball mill, select the maximum speed, and after ball milling for 48 hours, take out the precursor and dry it into a powder in a 60°C drying oven for later use. In addition, configure an aqueous solution of ethanol with a volume ratio of 45%, and add a certain mass of PVP (K90), and PVP accounts for about 15% of the total mass of dispersed substances. Heat to dissolve PVP to form a uniform PVP solution. Weigh 900mg of ball-milled graphite powder and disperse it into 15ml of PVP solution by ultrasonic for 5h to form a stable dispersion with two-dimensional lamellar structure. The concentr...

Embodiment 2

[0095] Example 2 This implementation will list a two-dimensional sheet structure stable (two-dimensional MoS 2 / SnS 2 Composite stability) dispersion liquid, the preparation technology of gel, it can comprise the following steps:

[0096] Step 1: Put the MoS 2 The powder precursor and ethanol (the mass ratio is controlled at about 1:4) are mixed in a ball mill tank and added to grind agate balls, and the ball-to-material ratio is controlled at about 1:10. Turn on the ball mill to select the maximum speed, and after 48 hours of ball milling, take out the precursor and dry it in a 60°C drying oven for later use. In addition, configure an aqueous solution of ethanol with a volume ratio of 45%, and add a certain mass of PVP (K90), and PVP accounts for about 15% of the total mass of dispersed substances. Heat to dissolve PVP to form a uniform PVP solution. Weigh 900 mg of ball-milled two-dimensional MoS 2 The lamellar powder was dispersed into 15ml PVP solution by ultrasound...

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 discloses a two-dimensional lamellar structure stable dispersion liquid and a two-dimensional lamellar structure stable gel, and a preparation method and an application thereof. The dispersion liquid comprises a solvent system mainly formed by mixing a solvent and a stable dispersion agent, and stripped two-dimensional lamellar structures uniformly dispersed in the solvent system. The preparation method of the gel comprises the following steps: a reagent used for gelling the dispersion liquid is added and uniformly mixed in the dispersion liquid; and a formed liquid phase system is allowed to stand and to gel, such that the two-dimensional lamellar structure stable gel is obtained. Further, the gel can be subjected to solvent displacement with pure water, and lyophilized gel can be obtained after lyophilization. The method provided by the invention is suitable to be used for preparing dispersion liquids and gels of various two-dimensional lamellar structures including graphene lamellar structure, molybdenum disulfide (MoS2) lamellar structure and tin disulfide (SnS2) lamellar structure, and derivatives thereof. The method has the advantages of simple process, good repeatability and low cost. The method can be widely applied in the fields such as sol-gel technology and solar energy utilization.

Description

technical field [0001] The invention relates to a stable dispersion liquid and gel based on nanomaterials and a preparation method thereof, in particular to a dispersion liquid and a gel with a stable two-dimensional sheet structure, a preparation method and application thereof, and belongs to the field of sol-gel . Background technique [0002] Graphene and two-dimensional nano-MoS with graphene-like structure 2 , SnS 2 It has outstanding properties such as light, electricity, photolysis of water, sensing, and energy storage. In recent years, scientists have gradually focused on graphene and the two-dimensional nanostructures of transition metals and common metal sulfides that have a similar structure to graphene, hoping to find new research and application values. Recent studies have found that dimensionality is a very important factor among the factors that determine the final physical and chemical properties of materials besides the atomic arrangement and composition ...

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): C01B31/04C01B33/14C01G39/06C01G19/00
Inventor 张学同朱筠清
Owner SUZHOU INST OF NANO TECH & NANO BIONICS CHINESE ACEDEMY OF SCI
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