Unlock instant, AI-driven research and patent intelligence for your innovation.

Graphene-titanium carbide composite porous gel film as well as preparation method and application thereof

A composite film, porous hydrogel technology, applied in the direction of graphene, titanium carbide, carbide, etc., can solve the problems of layer-by-layer stacking, reduction of effective active sites of composite films or fibers, etc., to achieve good dispersion, The effect of improving electrochemical energy storage performance and suppressing the effect of re-stacking

Inactive Publication Date: 2022-01-28
中博龙辉装备集团股份有限公司
View PDF11 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, the products prepared in the above-mentioned prior art are still layered structures, and related problems still exist
In the invention application with the publication number CN111816868A and the invention application with the publication number CN111799097A, the structure of the two-dimensional Mxene is mainly planar sheet. In the process of assembling into a macro film or fiber, due to the high specific surface area of ​​Mxene will cause The phenomenon of layer-by-layer stacking of the sheets will lead to a decrease in the effective active sites of the actual composite film or fiber

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
  • Graphene-titanium carbide composite porous gel film as well as preparation method and application thereof
  • Graphene-titanium carbide composite porous gel film as well as preparation method and application thereof
  • Graphene-titanium carbide composite porous gel film as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Graphene / Ti that present embodiment provides 3 C 2 The preparation method step of composite porous gel film is as follows:

[0035] S1: Mix 4ml of graphene oxide with a concentration of 20mg / ml and 2ml of Ti with a concentration of 20mg / ml 3 C 2 The dispersion was stirred at an ultrasonic frequency of 40kHz and 200rpm for 2h to make it evenly mixed to form graphene oxide / Ti 3 C 2 Mixed dispersion, graphene oxide and Ti 3 C 2 The mass ratio is 2:1.

[0036] S2: the graphene oxide / Ti 3 C 2 The mixed dispersion was cast onto a 1×2.5cm substrate with a thickness of 0.3mm to generate graphene oxide / Ti 3 C 2 Composite film.

[0037] S3: the graphene oxide / Ti 3 C 2 The composite film is soaked in the gel pool for 10 minutes, the volume of the gel pool solution is 200ml, and the content of sodium hydroxide is 5wt%. The graphene oxide / Ti 3 C 2 Formation of Graphene Oxide / Ti from Composite Thin Film in Contact with Gel Cell Solution 3 C 2 Composite porous hydrog...

Embodiment 2

[0042] Graphene / Ti that present embodiment provides 3 C 2 The preparation method step of composite porous gel film is as follows:

[0043] S1: Mix 8ml of graphene oxide with a concentration of 20mg / ml and 2ml of Ti with a concentration of 20mg / ml 3 C 2 The dispersion was stirred at an ultrasonic frequency of 40kHz and 200rpm for 2h to make it evenly mixed to form graphene oxide / Ti 3 C 2 Mixed dispersion, graphene oxide and Ti 3 C 2 The mass ratio is 4:1.

[0044] S2: the graphene oxide / Ti 3 C 2 The mixed dispersion was cast onto a 1×2.5cm substrate with a thickness of 0.3mm to generate graphene oxide / Ti 3 C 2 Composite film.

[0045] S3: the graphene oxide / Ti 3 C 2 The composite film is soaked in a gel pool for 10 minutes, the volume of the gel pool solution is 50ml, and the content of sodium hydroxide is 10wt%. The graphene oxide / Ti 3 C 2 Formation of Graphene Oxide / Ti from Composite Thin Film in Contact with Gel Cell Solution 3 C 2 Porous hydrogel films.

...

Embodiment 3

[0059] Graphene / Ti that present embodiment provides 3 C 2 The preparation method step of composite porous gel film is as follows:

[0060] S1: Mix 4ml of graphene oxide with a concentration of 20mg / ml and 2ml of Ti with a concentration of 10mg / ml 3 C 2 The dispersion was stirred at an ultrasonic frequency of 40kHz and 200rpm for 1h to make it evenly mixed to form graphene oxide / Ti 3 C 2 Mixed dispersion, graphene oxide and Ti 3 C 2 The mass ratio is 4:1.

[0061] S2: the graphene oxide / Ti 3 C 2 The mixed dispersion was cast onto a 1×2 cm substrate with a thickness of 0.3 mm to generate graphene oxide / Ti 3 C 2 Composite film.

[0062] S3: the graphene oxide / Ti 3 C 2 The composite film is soaked in the gel pool for 10 minutes, the volume of the gel pool solution is 50ml, and the content of sodium hydroxide is 5wt%. The graphene oxide / Ti 3 C 2 Formation of Graphene Oxide / Ti from Composite Thin Film in Contact with Gel Cell Solution 3 C 2 Composite porous hydroge...

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
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention discloses a graphene-titanium carbide composite porous gel film as well as a preparation method and application thereof. According to the preparation method, graphene oxide gel and Ti3C2 serve as precursors, the graphene oxide gel and Ti3C2 are mixed to form composite hydrogel, then the flocculation effect of sodium hydroxide is utilized, preparation of the porous hydrogel composite film is achieved, and the graphene / Ti3C2 composite gel film is obtained through chemical reduction. The graphene / Ti3C2 composite film prepared by the method has a porous structure of a graphene oxide gel skeleton, ion diffusion channels and active sites in an electrode material can be increased, and the electrochemical performance of the electrode material is improved.

Description

technical field [0001] The invention relates to the technical field of graphene material preparation, in particular to a graphene-titanium carbide composite porous gel film and its preparation method and application. Background technique [0002] Graphene is a single-layer six-membered ring two-dimensional material formed by sp2 hybridization of carbon atoms. It has excellent mechanical properties, electrical properties and thermal properties, and is widely used in materials and energy storage. Compared with other methods of obtaining graphene, graphene films prepared from graphene oxide produced by chemical exfoliation can be assembled into films by simple processes such as filtration, spraying, casting, etc., which are low in cost and suitable for large-scale Production. [0003] Similar to graphene materials, Ti 3 C 2 The material is also a two-dimensional layered structure, and has a large specific surface area, high electrical conductivity (up to ≈10 4 S cm -1 ), e...

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 Applications(China)
IPC IPC(8): C01B32/921C01B32/184B82Y30/00B82Y40/00H01M4/62H01M10/054
CPCC01B32/921C01B32/184B82Y30/00B82Y40/00H01M10/054H01M4/62H01M4/624H01M4/625C01P2004/80C01P2004/20C01P2004/03C01P2006/40Y02E60/10
Inventor 李哲东符兵
Owner 中博龙辉装备集团股份有限公司