Nitrogen-doped carbon nano SnO2 composite material and preparation method and application thereof

A composite material, nitrogen-doped carbon technology, applied in nanotechnology, nanotechnology, nanotechnology for materials and surface science, etc., can solve problems such as complex preparation methods, achieve simple preparation methods, wide application prospects, repeatable good effect

Active Publication Date: 2020-11-03
EAST CHINA UNIV OF SCI & TECH
View PDF5 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, these existing oxygen-vacancy nano-SnO 2 The performance of nitrogen-doped carbon nanofiber composites still cannot effectively meet the existing needs, and the preparation method is complicated
Therefore, how to quickly and efficiently prepare SnO 2

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
  • Nitrogen-doped carbon nano SnO2 composite material and preparation method and application thereof
  • Nitrogen-doped carbon nano SnO2 composite material and preparation method and application thereof
  • Nitrogen-doped carbon nano SnO2 composite material and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0052] Example 1

[0053] (1) Preparation of poly-4-vinyl pyridine / absolute ethanol solution: at room temperature, 5.25 g of poly-4-vinyl pyridine (weight-average molecular weight 60000) was added to 50 mL of absolute ethanol, and dissolved by magnetic stirring to obtain 4 - A solution of poly(4-vinylpyridine) / absolute ethanol with a vinylpyridine monomer concentration of 1 mol / L.

[0054] (2) Preparation of SnCl 2 ·2H 2 O / anhydrous ethanol solution: take 11.28g SnCl 2 ·2H 2 O was added to 50 mL of absolute ethanol, and it was dissolved by magnetic stirring to obtain SnCl with a concentration of 1 mol / L. 2 ·2H 2 O / anhydrous ethanol solution.

[0055] (3) Preparation of carbonized precursor: under the condition of magnetic stirring at room temperature, SnCl 2 ·2H 2 O / absolute ethanol solution was added to poly-4-vinylpyridine / absolute ethanol solution, the molar ratio (Sn 2+ : 4-vinylpyridine monomer=1:1); continue to stir for 12h to form a stable complex precipitation...

Example Embodiment

[0057] Example 2

[0058] (1) Preparation of poly-4-vinyl pyridine / absolute ethanol solution: at room temperature, 5.25 g of poly-4-vinyl pyridine (weight-average molecular weight 60000) was added to 50 mL of absolute ethanol, and dissolved by magnetic stirring to obtain 4 - A solution of poly(4-vinylpyridine) / absolute ethanol with a vinylpyridine monomer concentration of 1 mol / L.

[0059] (2) Preparation of SnCl 2 ·2H 2 O / anhydrous ethanol solution: take 2.82g SnCl 2 ·2H 2 O was added to 50 mL of absolute ethanol, and it was dissolved by magnetic stirring to obtain SnCl with a concentration of 0.25 mol / L. 2 ·2H 2 O / anhydrous ethanol solution.

[0060] (3) Preparation of carbonized precursor: under the condition of magnetic stirring at room temperature, SnCl 2 ·2H 2 O / absolute ethanol solution was added to poly-4-vinylpyridine / absolute ethanol solution, the molar ratio (Sn 2+ : 4-vinylpyridine monomer=1:4); continue stirring for 12h to form a stable complex precipitat...

Example Embodiment

[0062] Example 3

[0063] (1) Preparation of 4-vinylpyridine monomer / absolute ethanol solution: at room temperature, 5.25g of 4-vinylpyridine monomer was added to 50 mL of absolute ethanol, and dissolved by magnetic stirring to obtain 4-vinylpyridine monomer A 4-vinylpyridine monomer / absolute ethanol solution with a bulk concentration of 1 mol / L.

[0064] (2) Preparation of SnCl 2 ·2H 2 O / anhydrous ethanol solution: take 11.28g SnCl 2 ·2H 2 O was added to 50 mL of absolute ethanol, and it was dissolved by magnetic stirring to obtain SnCl with a concentration of 1 mol / L. 2 ·2H 2 O / anhydrous ethanol solution.

[0065] (3) Preparation of carbonized precursor: under the condition of magnetic stirring at room temperature, SnCl 2 ·2H 2 O / absolute ethanol solution was added to 4-vinylpyridine monomer / absolute ethanol solution, the molar ratio (Sn 2+ : 4-vinylpyridine monomer=1:1); continue to stir for 12h to form a stable complex precipitation, and then evaporate and dry to ...

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
Reversible capacityaaaaaaaaaa
Login to view more

Abstract

The invention discloses a nitrogen-doped carbon nano SnO2 composite material and a preparation method and application thereof. The preparation method of the nitrogen-doped carbon nano SnO2 composite material comprises the following steps: (1) mixing a Sn2+ containing solution and a poly 4-vinylpyridine solution, performing stirring to form a complex precipitate, and removing a solvent from the complex precipitate to obtain a carbonized precursor, wherein in the poly 4-vinylpyridine solution, a solvent is ethanol and/or water; (2) carbonizing the carbide precursor to obtain the nitrogen-doped carbon nano SnO2 composite material. According to the nitrogen-doped carbon nano SnO2 composite material disclosed by the invention, the nitrogen-doped carbon nano SnO2 composite material with uniformSnO2 particle size, uniform dispersion and excellent electrochemical performance can be prepared only through one-step tin carbide nitrogen coordination of the precursor.

Description

technical field [0001] The invention belongs to the technical field of materials, and in particular relates to a nitrogen-doped carbon nanometer SnO 2 Composite materials and their preparation methods and applications. Background technique [0002] SnO 2 Due to the advantages of low material cost, simple preparation method, non-toxic and non-polluting, easy control of morphology and microstructure, high specific capacity, high thermal and chemical stability, nanomaterials have great potential in the fields of energy storage, sensing, and catalysis. Wide range of applications. But SnO 2 The characteristic of low conductivity itself seriously restricts the improvement of its application performance, and the nanoscale SnO 2 Due to the high surface energy, it is easy to agglomerate so that its activity decreases rapidly during the application process. To solve the above problems is to improve the SnO 2 The key to the application performance of nanomaterials. [0003] Nano...

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): H01M4/36H01M4/48H01M4/62B82Y30/00
CPCH01M4/362H01M4/483H01M4/625B82Y30/00H01M2004/027Y02E60/10
Inventor 江浩李春忠胡彦杰刘英胡晨
Owner EAST CHINA UNIV OF SCI & TECH
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