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

Antimony sulfide/graphene composite nano material as well as preparation method and application thereof

A graphene composite, nanomaterial technology, applied in nanotechnology, nanotechnology, nanotechnology for materials and surface science, etc., can solve problems such as material capacity attenuation, and achieve enhanced conductivity, easy promotion, and simple process. Effect

Active Publication Date: 2020-11-13
NANJING AGRICULTURAL UNIVERSITY
View PDF4 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the process of intercalation / intercalation of sodium, the capacity of the material decays rapidly during cycling due to the huge volume change.

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
  • Antimony sulfide/graphene composite nano material as well as preparation method and application thereof
  • Antimony sulfide/graphene composite nano material as well as preparation method and application thereof
  • Antimony sulfide/graphene composite nano material as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The preparation method of the antimony sulfide / graphene composite nanomaterial of the present embodiment comprises the steps:

[0034] Step 1: Ultrasonically disperse graphene in water at normal temperature, then add a mixed aqueous solution of antimony trichloride and hydrochloric acid, and mix well. In the mixed solution, the concentration of graphene is 0.5mg / mL, the concentration of antimony trichloride is 8mmol / L, and the concentration of hydrochloric acid is 0.7mol / L.

[0035] Step 2: Add 0.6 g of a saturated aqueous solution of thioacetamide to the mixed solution obtained in Step 1, and mix evenly.

[0036] In step 3, the mixed solution in step 2 was ultrasonically reacted for 2 hours, and the obtained product was further washed several times with deionized water and absolute ethanol, and then vacuum-dried at 80°C to obtain the antimony sulfide / graphene composite nanomaterial.

[0037] Such as Figure 1~3 as shown, figure 1 , figure 2 and image 3 The trans...

Embodiment 2

[0039] The preparation method of the antimony sulfide / graphene composite nanomaterial of the present embodiment comprises the steps:

[0040] Step 1, ultrasonically disperse graphene in water, then add a mixed aqueous solution of antimony trichloride and hydrochloric acid, and mix well. In the mixed solution, the concentration of graphene is 1 mg / mL, the concentration of antimony trichloride is 4 mmol / L, and the concentration of hydrochloric acid is about 1 mol / L.

[0041] Step 2: Add 0.3 g of a saturated aqueous solution of thioacetamide to the mixed solution obtained in Step 1, and mix evenly.

[0042] In step 3, the mixed solution in step 2 was ultrasonically reacted for 4 hours, and the obtained product was further washed several times with deionized water and absolute ethanol, and then vacuum-dried at 80°C to obtain a nano-antimony sulfide / graphene composite material.

[0043] The antimony sulfide / graphene composite nanomaterial prepared in Example 2 is similar in struct...

Embodiment 3

[0046] The preparation method of the antimony sulfide / graphene composite nanomaterial of the present embodiment comprises the steps:

[0047] Step 1, ultrasonically disperse graphene in water, then add a mixed aqueous solution of antimony trichloride and hydrochloric acid, and mix well. In the mixed solution, the concentration of graphene is 2 mg / mL, the concentration of antimony trichloride is 2 mmol / L, and the concentration of hydrochloric acid is about 1 mol / L.

[0048] Step 2: Add 1 g of a saturated aqueous solution of thioacetamide to the mixed solution obtained in Step 1, and mix evenly.

[0049] In step 3, the mixed solution in step 2 was ultrasonically reacted for 10 hours, and the obtained product was further washed several times with deionized water and absolute ethanol, and then vacuum-dried at 80°C to obtain a nano-antimony sulfide / graphene composite material.

[0050] The antimony sulfide / graphene composite nanomaterial prepared in Example 3 is similar in structure...

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
Reversible specific capacityaaaaaaaaaa
Login to View More

Abstract

The invention discloses an antimony sulfide / graphene composite nano material as well as a preparation method and application thereof, the antimony sulfide / graphene composite nano material is obtainedby ultrasonic synthesis of antimony salt, a sulfur source and graphene at normal temperature, and amorphous antimony sulfide of the composite nano material is uniformly coated on a graphene lamellar structure. Through a simple and feasible ultrasonic synthesis method, the uniform antimony sulfide / graphene composite nano material can be quickly and stably prepared under the condition of normal temperature, and shows excellent performance as a sodium ion battery negative electrode material. The preparation method is simple in process and easy to popularize.

Description

technical field [0001] The invention belongs to the technical field of nanocomposite materials, in particular to an antimony sulfide / graphene composite nanomaterial and its preparation method and application. Background technique [0002] With the widespread application of lithium-ion batteries in the fields of electric vehicles, consumer electronics and energy storage, the problem of shortage of lithium resources has gradually become prominent. Compared with lithium, sodium is more abundant in the earth's crust. At the same time, sodium-ion batteries also have a price advantage. However, sodium ions have a large ionic radius and slow kinetic rate, making it difficult to find suitable sodium storage materials, which have become the main factors restricting the development and application of sodium ion batteries. Based on this background, the current development of high specific capacity sodium storage materials has important theoretical research significance and application...

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): H01M4/36H01M4/58H01M4/583H01M4/62H01M10/054B82Y30/00
CPCH01M4/366H01M4/5815H01M4/583H01M4/625H01M10/054B82Y30/00H01M2004/027Y02E60/10
Inventor 赵文甲张春永
Owner NANJING AGRICULTURAL UNIVERSITY
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