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

Preparation method of nickel oxide/carbon sphere composite material

A technology of composite materials and carbon spheres, applied in nanotechnology for materials and surface science, hybrid/electric double layer capacitor manufacturing, hybrid capacitor electrodes, etc., can solve the problems of unsatisfactory actual performance, low working voltage, and poor conductivity and other issues, to achieve high specific capacitance value, improve conductivity, and good electrochemical performance

Inactive Publication Date: 2015-09-09
YANGZHOU UNIV
View PDF2 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to its low working voltage and poor conductivity, the actual performance is not ideal

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 of nickel oxide/carbon sphere composite material
  • Preparation method of nickel oxide/carbon sphere composite material
  • Preparation method of nickel oxide/carbon sphere composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] 1. Alkali treatment of ordered mesoporous carbon spheres: Add 0.1 g of mesoporous carbon spheres into a round-bottomed flask filled with 50 mL of 6M NaOH solution, stir on a magnetic stirrer for 10 minutes, and then ultrasonically disperse for 20 minutes to make The carbon spheres are uniformly dispersed in the solution. Magnetic stirring and reflux at 150°C for 24 hours, then naturally cool to room temperature; then the reaction system was centrifuged to obtain a precipitate, and then the obtained precipitate was centrifugally washed several times with deionized water and ethanol as the washing liquid, and then the obtained precipitate was vacuum-washed Dry to obtain alkali-treated carbon pellets.

[0035] Carrier carbon pellets such as figure 1 shown. From figure 1 It can be seen that the ordered mesoporous carbon spheres present uniform nano-spherical morphology, regular and ordered pore structure, and good monodispersity.

[0036] 2. Preparation of nickel hydrox...

Embodiment 2

[0041] 1. Alkali treatment of ordered mesoporous carbon spheres: Add 0.1 g of mesoporous carbon spheres into a round-bottomed flask filled with 50 mL of 6 M NaOH solution, stir on a magnetic stirrer for 10 minutes, and then ultrasonically disperse for 20 minutes. The carbon pellets are evenly dispersed in the solution. Magnetic stirring and reflux at 150°C for 24 hours, and then naturally cool to room temperature; then the reaction system was centrifuged to obtain a precipitate, and then deionized water and ethanol were used as washing liquids for centrifugal washing several times, and the obtained precipitate was vacuum-dried to obtain alkali treatment carbon pellets.

[0042] Carrier carbon pellets such as figure 1 shown. From figure 1 It can be seen that the ordered mesoporous carbon spheres present uniform nano-spherical morphology, regular and ordered pore structure, and good monodispersity.

[0043] 2. Preparation of nickel hydroxide / carbon pellet composite material ...

Embodiment 3

[0048] 1. Alkali treatment of ordered mesoporous carbon spheres: Add 0.1 g of mesoporous carbon spheres into a round-bottomed flask filled with 50 mL of 6M NaOH solution, stir on a magnetic stirrer for 10 minutes, and then ultrasonically disperse for 20 minutes to make The carbon spheres are uniformly dispersed in the solution. Magnetic stirring and reflux at 150°C for 24 hours, and then naturally cool to room temperature; then the reaction system was centrifuged to obtain a precipitate, and then deionized water and ethanol were used as washing liquids for centrifugal washing several times, and the obtained precipitate was vacuum-dried to obtain alkali treatment carbon pellets.

[0049] Carrier carbon pellets such as figure 1 shown. From figure 1 It can be seen that the ordered mesoporous carbon spheres present uniform nano-spherical morphology, regular and ordered pore structure, and good monodispersity.

[0050] 2. Preparation of nickel hydroxide / carbon pellet composite ...

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

A preparation method of a nickel oxide / carbon sphere composite material relates to the technical field of nano-material production. Backflow processing is carried out on ordered meso-pore carbon spheres, as carriers, in a NaOH solution, and a nickel hydroxide / carbon sphere precursor material is synthesized via hydrolysis of metal ions. The precursor is calcined in the atmosphere of nitrogen, nickel hydroxide is deposited to nickel oxide, and finally the nickel oxide / carbon sphere composite material is obtained. The preparation method provided by the invention is simple in technology and low in cost, and the prepared nickel oxide / carbon sphere composite material has good prospects in the field of super capacitors.

Description

technical field [0001] The invention relates to the technical field of synthesis of nanomaterials, in particular to a method for preparing a mesoporous carbon-based nickel oxide composite material. Background technique [0002] Mesoporous carbon materials are widely used as electrode materials for supercapacitors and batteries due to their regular and ordered pore structure, large pore volume, and good electrical conductivity. However, it has a major disadvantage as an electrode material for supercapacitors—low energy density. How to increase its energy density has become one of the hotspots of research. [0003] According to the energy formula E=1 / 2CV 2 It can be seen that improving the capacitive performance of the electrode material can effectively increase its energy density. Nickel oxide has attracted great attention as a pseudocapacitive material due to its good electrochemical redox activity, high theoretical specific capacitance, and low cost. However, due to its...

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): H01G11/46H01G11/42H01G11/24B82Y30/00B82Y40/00
CPCY02E60/13H01G11/46B82Y30/00B82Y40/00H01G11/24H01G11/42H01G11/86
Inventor 范磊闫广超郭荣
Owner YANGZHOU UNIV
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