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

A method for preparing an MXene-based flexible fabric electrode and application thereof to a supercapacitor

A technology of supercapacitors and flexible fabrics, which is applied in the field of nanomaterials and functional devices, can solve the problems of high cost of flexible electrodes and complicated manufacturing processes, and achieve the effects of low cost, simple preparation process, and increased capacitance performance

Active Publication Date: 2018-12-14
HUBEI UNIV OF AUTOMOTIVE TECH
View PDF2 Cites 35 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] For the above defects or improvement needs of the prior art, the present invention provides a preparation method based on MXene flexible fabric electrodes and its application in supercapacitors, the purpose of which is to prepare MXene nanosheets, MXene fabric electrodes and MXene flexible fabrics Supercapacitors, so as to solve the technical problems of high cost and complicated manufacturing process of flexible electrodes

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
  • A method for preparing an MXene-based flexible fabric electrode and application thereof to a supercapacitor
  • A method for preparing an MXene-based flexible fabric electrode and application thereof to a supercapacitor
  • A method for preparing an MXene-based flexible fabric electrode and application thereof to a supercapacitor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] In a preferred embodiment of the present invention, a kind of preparation method based on MXene flexible fabric electrode, this method comprises the steps:

[0054] (1) Preparation of precursor Ti 3 AlC 2 MAX phase powder.

[0055] Weigh TiH 2 , Al and C powder, mixed in a ratio of 3:1.1:2 and placed in a ball mill, ball milled for 18 hours, and then the powder after ball milling was placed in a corundum crucible and sintered in a vacuum tube furnace under the protection of an argon atmosphere. The sintering conditions The temperature was raised to 1400°C at 10°C / min and kept for 2h. After natural cooling, the obtained Ti 3 AlC 2 After grinding, pass through a 400-mesh sieve to obtain the MAX phase powder.

[0056] (2) Etching the MAX phase, centrifugal cleaning, and low-temperature ultrasonication to prepare MXene.

[0057] A mixed solution of LiF and HCl was used to etch the MAX phase powder in (1) for 24 hours, and the etchant was subjected to repeated centrif...

Embodiment 2

[0074] In a preferred embodiment of the present invention, a kind of preparation method based on MXene flexible fabric electrode, this method comprises the steps:

[0075] (1) Preparation of precursor Ti 3 AlC 2 MAX phase powder.

[0076] Weigh TiH 2 , Al and C powder, mixed in a ratio of 3:1.1:2 and placed in a ball mill, ball milled for 18 hours, and then the powder after ball milling was placed in a corundum crucible and sintered in a vacuum tube furnace under the protection of an argon atmosphere. The sintering conditions The temperature was raised to 1400°C at 10°C / min and kept for 2h. After natural cooling, the obtained Ti 3 AlC 2 After grinding, pass through a 400-mesh sieve to obtain the MAX phase powder.

[0077] (2) Etching the MAX phase, centrifugal cleaning, and low-temperature ultrasonication to prepare MXene.

[0078] A mixed solution of LiF and HCl was used to etch the MAX phase powder in (1) for 24 hours, and the etching solution was subjected to repeate...

Embodiment 3

[0097] In a preferred embodiment of the present invention, a kind of preparation method based on MXene flexible fabric electrode, this method comprises the steps:

[0098] (1) Preparation of precursor Ti 3 AlC 2 MAX phase powder.

[0099] Weigh TiH 2 , Al and C powders, mixed in a ratio of 3:1.1:2 and placed in a ball mill, ball milled for 24 hours, and then the ball milled powder was placed in a corundum crucible and sintered in a vacuum tube furnace under the protection of an argon atmosphere. The sintering conditions The temperature was raised to 1400°C at 10°C / min and kept for 2h. After natural cooling, the obtained Ti 3 AlC 2 After grinding, pass through a 400-mesh sieve to obtain the MAX phase powder.

[0100] (2) Etching the MAX phase, centrifugal cleaning, and low-temperature ultrasonication to prepare MXene.

[0101] The mixed solution of LiF and HCl was used to etch the MAX phase powder in (1) for 18 hours, and the etchant was subjected to repeated centrifugal...

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
Concentrationaaaaaaaaaa
Login to View More

Abstract

The invention discloses a method for preparing an MXene-based flexible fabric electrode based on MXene, and specifically includes the steps of ball-milling and sintering TiH2, Al and C powder according to a proportion to obtain a MAX phase material, then obtaining MAX phase powder after grinding and sieving, after the MAX phase powder is subjected to chemical etching, obtaining an MXene material through repeated centrifugation and cleaning, then obtaining a Ti3C2MXene colloidal solution by low temperature ultrasonography and centrifugation, and finally, placing the cleaned fabric in a dilutedMXene solution to be soaked and obtaining the MXene-based flexible fabric electrode after vacuum drying. The MXene-based flexible fabric electrode prepared by the invention can be used for a supercapacitor. The MXene flexible fabric electrode is electroplated with a pseudocapacitance material PPY by an electroplating method, not only can oxidation of Ti3C2 to TiO2 can be avoided, but also the capacitance property can be significantly improved. The method of the invention is simple, low in cost, non-toxic and pollution-free, and can be prepared on a large scale.

Description

technical field [0001] The invention belongs to the technical field of nanomaterials and functional devices, and in particular relates to a method for preparing a flexible fabric electrode based on MXene and its application in supercapacitors. Background technique [0002] The rapid progress and development of economy and society have greatly promoted the human demand for energy. The excessive development and use of non-renewable energy such as coal, oil, and natural gas has brought about a serious energy crisis on the one hand; Therefore, finding clean and renewable new energy sources is an urgent task for the sustainable development of the world today. Supercapacitors have the advantages of high power density, fast charge and discharge capability, and long service life. Therefore, the application of supercapacitors can well solve the above problems. [0003] One of the key issues in the development of supercapacitors is how to prepare an excellent electrode material. C...

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): H01G11/84H01G11/86
CPCH01G11/84H01G11/86Y02E60/13
Inventor 马亚楠罗时军张传坤刘伟之姚新宇
Owner HUBEI UNIV OF AUTOMOTIVE 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