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

a kind of sno 2 /c/mos 2 Composite material and its preparation method

A composite material and nanotechnology, applied in the manufacture of hybrid/electric double-layer capacitors, hybrid capacitor electrodes, etc., can solve the problems of structural damage, poor conductivity of semiconductor materials, volume expansion, etc.

Active Publication Date: 2020-11-20
JIANGSU UNIV
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are still some important factors restricting the MoS 2 Applications in supercapacitors, such as the poor conductivity of the semiconductor material itself, the agglomeration of the material during the cycle, and the volume expansion and contraction of the material under force, resulting in structural damage, etc.

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 kind of sno <sub>2</sub> /c/mos <sub>2</sub> Composite material and its preparation method
  • a kind of sno <sub>2</sub> /c/mos <sub>2</sub> Composite material and its preparation method
  • a kind of sno <sub>2</sub> /c/mos <sub>2</sub> Composite material and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] The embodiment of the present invention is a preparation method with simple process, low cost and green environmental protection. SnO is prepared by hydrothermal method 2 @C / MoS 2 Composites, with MoS 2 Compared with the monomer, the specific capacitance and cycle stability of the composite material are greatly improved.

[0028] SnO in the present invention 2 @C / MoS 2 Composite material with good electrochemical performance. at 1M Na 2 SO 4 Electrolyte, test voltage range -1.1~-0.3V, scan speed 10 to 100mV s -1 In the CV cycle test, the SnO 2 @C / MoS 2 The composite material shows excellent electrochemical performance, and the electrochemical energy storage is mainly based on the electric double layer capacitance, which can be obtained at 10mV s -1 The specific capacity reaches 115.5F g at the scan rate -1 .

[0029] The invention relates to SnO with excellent electrochemical performance 2 @C / MoS 2 Composite material and preparation method thereof, comprising...

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

No PUM Login to View More

Abstract

The invention relates to a supercapacitor electrode material, in particular to a SnO2 / C / MoS2 composite material and a preparation method thereof. The carbon-coated SnO2 nanospheres were weighed and dissolved in distilled water. Na2MoO4.2H2O and thioacetamide were added into the nanospheres, stirred and transferred to a reaction kettle to react at 200 DEG C for 24 h. SnO2 @ C / MoS2 nanocomposites were prepared by performing cooling to the room temperature, performing centrifuging with deionized water and ethanol, performing drying in vacuum drying oven, performing annealing at 600 DEG C for 4h in nitrogen atmosphere. The electrochemical properties of MoS2 can be improved by preparing carbon-coated SnO_2 nanospheres and compositing them with MoS2.

Description

technical field [0001] The present invention relates to a kind of SnO 2 / C / MoS 2 (hereinafter referred to as SnO 2 @C / MoS 2 ) composite material and its preparation method. SnO was prepared by a multi-step hydrothermal method 2 @C / MoS 2 The nanocomposite material has excellent electrochemical properties, and the preparation process is simple and environmentally friendly. As a new type of MoS 2 The base electrode material has great application prospects in the field of supercapacitor energy storage. Background technique [0002] Transition metal sulfide MoS 2 It is a supercapacitor electrode material with excellent performance, which has a graphite-like two-dimensional layered nanosheet structure. It has the advantages of high specific surface area, strong adsorption capacity, and high reactivity, which greatly improves its wettability in the electrolyte, promotes the electrochemical energy storage reaction, and thus improves the electrochemical performance of the su...

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): H01G11/24H01G11/30H01G11/46H01G11/86
CPCH01G11/24H01G11/30H01G11/46H01G11/86Y02E60/13
Inventor 项义军严学华王静静沙大巍程晓农
Owner JIANGSU UNIV