Nano-composite material with molybdenum trioxide@molybdenum disulfide core-shell heterostructure, and preparation method and application thereof

A nanocomposite material, molybdenum trioxide technology, applied in the field of nanomaterials, can solve problems such as low specific capacity and limited energy density of lithium-ion batteries, achieve low production costs, improve cycle stability and rate performance, and have good dispersion Effect

Active Publication Date: 2018-09-18
ANHUI NORMAL UNIV
View PDF2 Cites 18 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, with the continuous rapid development of electronic products, the requirements for batteries are getting higher and higher, and the energy density and power density of traditional batteries are far from meeti

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
  • Nano-composite material with molybdenum trioxide@molybdenum disulfide core-shell heterostructure, and preparation method and application thereof
  • Nano-composite material with molybdenum trioxide@molybdenum disulfide core-shell heterostructure, and preparation method and application thereof
  • Nano-composite material with molybdenum trioxide@molybdenum disulfide core-shell heterostructure, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0037] Example 1

[0038] A molybdenum trioxide@molybdenum disulfide core-shell heterostructure nanocomposite material, comprising the following steps:

[0039] S1: Dissolve sodium molybdate in double-distilled water and add 36% hydrochloric acid, stir for 30 minutes, and mix well to obtain a mixed solution. The sodium molybdate concentration in the mixed solution is 0.2M and the HCl concentration is 0.4M; The solution was transferred to a 100mL stainless steel polytetrafluoroethylene high-temperature reaction vessel and reacted hydrothermally at 180°C for 12 hours. The reaction vessel was taken out and cooled to room temperature. After that, the product was collected by centrifugation, and then washed with water and absolute ethanol for 3-5 times. , And then put the product into a vacuum drying oven at 60℃ for 12h to obtain a nano-ribbon-shaped molybdenum trioxide precursor. The SEM image is as follows figure 1 As shown, it can be seen from the figure that the molybdenum trioxide ...

Example Embodiment

[0044] Example 2

[0045] A method for preparing a nanocomposite material with a core-shell heterogeneous structure of molybdenum trioxide@molybdenum disulfide, comprising the following steps:

[0046] S1: Dissolve sodium molybdate in double-distilled water and add 36% hydrochloric acid with a mass concentration, stir for 30 minutes, and mix well to obtain a mixed solution. The sodium molybdate concentration in the mixed solution is 0.2M and the HCl concentration is 0.4M; The mixed solution was transferred to a 100mL stainless steel polytetrafluoroethylene high-temperature reactor, and reacted hydrothermally at 180°C for 12 hours. The reactor was taken out and cooled to room temperature. After that, the product was collected by centrifugation, and then washed with water and absolute ethanol for 3-5 times. , And then put the product in a vacuum drying oven at 60°C for 12h to obtain a nano-belt-shaped molybdenum trioxide precursor.

[0047] S2: Add the nano-ribbon molybdenum trioxide ...

Example Embodiment

[0048] Example 3

[0049] A method for preparing a nanocomposite material with a core-shell heterogeneous structure of molybdenum trioxide@molybdenum disulfide, comprising the following steps:

[0050] S1: Dissolve sodium molybdate in double-distilled water and add 36% hydrochloric acid, stir for 30 minutes, and mix well to obtain a mixed solution. The sodium molybdate concentration in the mixed solution is 0.2M and the HCl concentration is 0.4M; The solution was transferred to a 100mL stainless steel polytetrafluoroethylene high temperature reactor, and reacted hydrothermally at 180°C for 12 hours. The reactor was taken out and cooled to room temperature naturally. After that, the product was collected by centrifugation, and then washed with water and absolute ethanol for 3-5 times. The product is then placed in a vacuum drying oven at 60° C. and dried for 12 hours to obtain a nanobelt-shaped molybdenum trioxide precursor.

[0051] S2: Add the nano-ribbon molybdenum trioxide synthe...

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
Capacityaaaaaaaaaa
Login to view more

Abstract

The invention provides a nano-composite material with a molybdenum trioxide@molybdenum disulfide core-shell heterostructure, and a preparation method and an application thereof. The preparation methodcomprises the following steps: adding sodium molybdate and hydrochloric acid into redistilled water, used as a reaction solvent, in a closed high-temperature and high-pressure reactor, heating the reaction system to produce a high-temperature and high-pressure environment in order to prepare a nano-ribbon molybdenum trioxide precursor, adding the nano-ribbon molybdenum trioxide to redistilled water used as the reaction solvent, adding thiourea and hydrochloric acid, and heating the reaction system to generate high-temperature and high-pressure environment in order to prepare the three-dimensional porous sheet molybdenum oxide-molybdenum disulfide core-shell heterostructure nano-composite material. Compared with nano-composite materials in the prior art, the nano-composite material in theinvention has the advantages of high purity, good and controllable dispersibility, low production cost, good reproducibility, large specific surface area, facilitation of the infiltration of an electrode material with an electrolyte, and great potential application values in the energy storage field.

Description

technical field [0001] The invention belongs to the technical field of nanomaterials, and specifically relates to a nanocomposite material with a molybdenum trioxide@molybdenum disulfide core-shell heterostructure, a preparation method and an application thereof. Background technique [0002] Rechargeable batteries, especially lithium-ion batteries, are subverting people's lifestyles and energy utilization methods, opening a new chapter in the new energy era for mankind. The development of lithium-ion battery technology has greatly promoted the popularization and application of smart phones in recent years, and its high energy density supports the development of smart phones in the direction of thinner, more convenient and more functional. In the field of transportation, the high energy density of lithium-ion batteries, supplemented by advanced battery management systems, has made new energy electric vehicles very popular. In addition, lithium-ion batteries and other high-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
IPC IPC(8): H01M4/36H01M4/13
CPCH01M4/13H01M4/362Y02E60/10
Inventor 张小俊蔡国辉
Owner ANHUI NORMAL UNIV
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