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

Preparation method and application of a vanadium tetrasulfide@carbon nanotube composite powder

A carbon nanotube composite and vanadium tetrasulfide technology, which is applied in chemical instruments and methods, vanadium compounds, nanotechnology, etc., can solve the problems of VS4 high performance, irregular and uniform shape, and sparse distribution. , to achieve the effect of simple synthesis route, cheap and easy cost, and low synthesis temperature

Active Publication Date: 2021-02-09
SHAANXI UNIV OF SCI & TECH
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the composite materials that have been reported above, a part of VS 4 Not grown on the carbon material surface, only for VS 4 Composite with carbon materials, although the other part grows on the surface of carbon materials, but the distribution is relatively sparse and irregular, and VS 4 The shape is also irregular and uniform
This inadequate and inefficient recombination makes VS 4 The high performance of the

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 and application of a vanadium tetrasulfide@carbon nanotube composite powder
  • Preparation method and application of a vanadium tetrasulfide@carbon nanotube composite powder
  • Preparation method and application of a vanadium tetrasulfide@carbon nanotube composite powder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Step 1: Weigh 50 mg of carbon nanotubes and add them to 60 ml of deionized water, and ultrasonicate for 1.8 hours with an ultrasonic power of 500 W to obtain uniformly dispersed black solution A.

[0045] Step 2: Weigh 1.0 g of sodium metavanadate and 3.6 g of thioacetamide and add them into solution A at the same time, stir magnetically for 45 minutes at a speed of 500 r / min, and obtain solution B.

[0046] Step 3: Pour solution B into the reaction liner and seal it, then install the liner in the outer kettle and fix it, then place it in a homogeneous reactor with a filling ratio of 60%, and then at a speed of 10r / min, Reaction at 180°C for 24h.

[0047] Step 4: After the hydrothermal reaction is completed, the reaction vessel is naturally cooled to room temperature, and then the cooled product after the reaction is taken out, and the product is collected after three times of alternate washing with water and three times of alcohol.

[0048] Step 5: Place the collected...

Embodiment 2

[0050] Step 1: Weigh 48 mg of carbon nanotubes and add them to 58 ml of deionized water, and ultrasonicate for 1.5 hours with an ultrasonic power of 400 W to obtain uniformly dispersed black solution A;

[0051] Step 2: Weigh 0.9g of sodium metavanadate and 3.5g of thioacetamide and add them to solution A at the same time, stir magnetically for 30min at a speed of 400r / min to obtain solution B;

[0052] Step 3: Pour solution B into the reaction liner and seal it, then install the liner in the outer kettle and fix it, then place it in a homogeneous reactor with a filling ratio of 58%, and then at a speed of 5r / min, React at 175°C for 23h;

[0053] Step 4: After the hydrothermal reaction is completed, the reaction kettle is naturally cooled to room temperature, and then the cooled product after the reaction is taken out, and the product is collected after being alternately washed with water and alcohol twice;

[0054] Step 5: Place the collected product in the cold well of a fr...

Embodiment 3

[0056] Step 1: Weigh 52 mg of carbon nanotubes and add them to 62 ml of deionized water, ultrasonicate for 2.5 hours, with an ultrasonic power of 600 W, to obtain uniformly dispersed black solution A;

[0057] Step 2: Weigh 1.1g of sodium metavanadate and 3.7g of thioacetamide and add them to solution A at the same time, stir magnetically for 60min at a speed of 600r / min to obtain solution B;

[0058] Step 3: Pour solution B into the reaction liner and seal it, then install the liner in the outer kettle and fix it, then place it in a homogeneous reactor with a filling ratio of 62%, and then at a speed of 10r / min, React at 185°C for 25h;

[0059] Step 4: After the hydrothermal reaction is completed, the reaction kettle is naturally cooled to room temperature, and then the product cooled after the reaction is taken out, and the product is collected after being washed alternately with water and alcohol for 5 times;

[0060] Step 5: Place the collected product in the cold well of...

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
lengthaaaaaaaaaa
lengthaaaaaaaaaa
lengthaaaaaaaaaa
Login to View More

Abstract

A method for preparing vanadium tetrasulfide@carbon nanotube composite powder. Weigh 48-52mg of carbon nanotubes and add them into 58-62ml of deionized water for ultrasonication to obtain uniformly dispersed black solution A; weigh 0.9-1.1g of metavanadic acid Sodium and 3.5-3.7g thioacetamide were added to solution A at the same time, and magnetically stirred to obtain solution B; solution B was poured into the reaction lining and sealed, and then the lining was fixed in the outer kettle and placed in a uniform In the phase reaction instrument, under the condition of rotating speed of 5-10r / min, react at 175-185°C for 23-25 ​​hours; after the hydrothermal reaction is completed, the reaction kettle is naturally cooled to room temperature, and then the cooled product after the reaction is taken out. The product is collected after being alternately washed with water and alcohol; the collected product is placed in the cold well of a freeze dryer for freezing, and then the frozen product is placed in a tray, covered with a sealing cover, and the product is collected after vacuum drying to obtain The vanadium tetrasulfide@carbon nanotube composite powder has the characteristics of simple reaction process, low temperature, easy control and no need for large-scale equipment and harsh reaction conditions.

Description

technical field [0001] The invention relates to the technical field of vanadium tetrasulfide@carbon nanotube composite powder, in particular to a preparation method and application of vanadium tetrasulfide@carbon nanotube composite powder. Background technique [0002] As a typical transition metal sulfide, VS 4 Has a one-dimensional chain structure. Among them, two S 2 2- The group (four S) tightly surrounds V and expands along the c direction to form VS 4 Molecular chain, two adjacent VS 4 The molecular chains are connected by weak van der Waals force, and the distance between the chains can reach (Rout CS, Kim B-H, et al. J Am ChemSoc. 2013, 135:8720-8725.). Similar to FeS 2 , VS 4 It is derived from the natural mineral green sulfur vanadite, and the valence state of S is -1, and the valence state of V is +4. The above structural properties make VS 4 It has been applied in photocatalysis, hydrorefining reaction, lithium ion battery, supercapacitor, aluminum ion...

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): C01G31/00C01B32/168H01M4/36H01M4/58H01M4/62B01J27/04B82Y30/00B82Y40/00
CPCY02E60/10
Inventor 黄剑锋李文斌冯亮亮曹丽云马闯石泓彬孙震郭桂香
Owner SHAANXI UNIV OF SCI & 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