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

Ni(OH)2-Co2(OH)3Cl composite nanometer array electrode materials

A nano-array, electrode material technology, applied in hybrid capacitor electrodes, nanotechnology, nanotechnology and other directions, can solve the problems of unsatisfactory electrochemical performance, reduced performance, single electrochemical reaction, etc., to achieve low cost, simple operation, raw materials cheap effect

Inactive Publication Date: 2018-04-06
ANYANG NORMAL UNIV
View PDF5 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Ni(OH) 2 It is a commonly used supercapacitor electrode material, the common Ni(OH) 2 Nanomaterials are easy to agglomerate during the charging and discharging process, which leads to their performance degradation. At the same time, due to their relatively simple electrochemical reactions, the current pure Ni(OH) 2 The electrochemical performance of the nanoarray structure 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
  • Ni(OH)2-Co2(OH)3Cl composite nanometer array electrode materials
  • Ni(OH)2-Co2(OH)3Cl composite nanometer array electrode materials
  • Ni(OH)2-Co2(OH)3Cl composite nanometer array electrode materials

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] ①The commercially available thickness is 1.5mm, surface density is 280-420g / m 2The nickel foam with a pore size of 0.2-0.6mm is cut into a size of 1cm×4cm, and is ultrasonically treated with 3mol / L hydrochloric acid for 30 minutes to remove surface oxides. Wash with ethanol and deionized water alternately, and dry in vacuum for later use.

[0028] ②In a beaker, add 1.6mmol of nickel chloride, 1.6mmol of urea, and 1.6mmol of ammonium fluoride into 16mL of water, stir and sonicate for 15 minutes until completely dissolved. Move the solution into a 25mL polytetrafluoroethylene liner high-pressure reactor, and then put the pretreated 1cm×4cm nickel foam into the reactor, react at 100°C for 12 hours, cool to room temperature naturally, and wash with deionized water and ethanol Wash several times and dry the sample in vacuum to obtain Ni(OH) grown on nickel foam 2 nanoarray.

[0029] ③In a beaker, add 1.6mmol of cobalt chloride to 16mL of water, and stir until completely d...

Embodiment 2

[0034] ①The commercially available thickness is 1.5mm, surface density is 280-420g / m 2 The nickel foam with a pore size of 0.2-0.6mm is cut into a size of 1cm×4cm, and is ultrasonically treated with 3mol / L hydrochloric acid for 30 minutes to remove surface oxides. Wash with ethanol and deionized water alternately, and dry in vacuum for later use.

[0035] ②In a beaker, add 0.8mmol of nickel sulfate, 0.8mmol of urea, and 0.8mmol of ammonium fluoride into 16mL of water, and stir until completely dissolved. Move the solution into a 25mL polytetrafluoroethylene liner high-pressure reactor, then put the pretreated 1cm×4cm foam nickel into the reactor, react at 120°C for 12 hours, cool to room temperature naturally, and wash with deionized water and ethanol Several times, dry the sample in vacuum to obtain Ni(OH) grown on nickel foam 2 nanoarray.

[0036] ③In a beaker, add 0.8mmol of cobalt chloride to 16mL of water and stir until completely dissolved. The solution is moved into...

Embodiment 3

[0039] ①The commercially available thickness is 1.5mm, surface density is 280-420g / m 2 The nickel foam with a pore size of 0.2-0.6mm is cut into a size of 1cm×4cm, and is ultrasonically treated with 3mol / L hydrochloric acid for 30 minutes to remove surface oxides. Wash with ethanol and deionized water alternately, and dry in vacuum for later use.

[0040] ②In a beaker, add 3.2mmol of nickel acetate, 3.2mmol of urea, and 3.2mmol of ammonium fluoride into 16mL of water, and stir until completely dissolved. Move the solution into a 25mL polytetrafluoroethylene liner high-pressure reactor, then put the pretreated 1cm×4cm foam nickel into the reactor, react at 100°C for 24 hours, cool to room temperature naturally, and wash with deionized water and ethanol Several times, dry the sample in vacuum to obtain Ni(OH) grown on nickel foam 2 nanoarray.

[0041] ③In a beaker, add 3.2mmol of cobalt chloride to 16mL of water and stir until completely dissolved. The solution is moved into...

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
Thicknessaaaaaaaaaa
Areal densityaaaaaaaaaa
Apertureaaaaaaaaaa
Login to View More

Abstract

The present invention discloses Ni(OH)2-Co2(OH)3Cl composite nanometer array electrode materials suitable as supercapacitor electrode materials, belonging to the field of electrode material technology. The preparation of the materials comprise the steps of: mixing nickel salt, urea and ammonium fluoride, dissolving the mixed materials into water, and preparing A reaction solution; adding the A reaction solution into a high-pressure autoclave, then putting pretreated foam into the high-pressure autoclave, controlling a reaction temperature and time, and obtaining an Ni(OH)2 nano array; and dissolving cobalt salt into water to prepare B reaction solution, putting the prepared Ni(OH)2 nano array into the B reaction solution, controlling the reaction temperature and time, and obtaining an Ni(OH)2-Co2(OH)3Cl composite nanometer array. The obtained Ni(OH)2-Co2(OH)3Cl composite nanometer array electrode materials have excellent electrochemical performance, and a specific capacitance can reach680.29F / g when a current density is 1.0 A / g.

Description

technical field [0001] The present invention relates to a kind of Ni(OH) suitable for supercapacitor electrode material 2 -Co 2 (OH) 3 The invention relates to a composite nano-array material of Cl, which belongs to the technical field of functional nano-materials. Background technique [0002] As a new type of promising energy storage and conversion device, supercapacitors are widely used in electronic equipment and new energy due to their advantages such as fast charge and discharge, long cycle life, kinetically favorable charge transfer, high power density, and safe operation. Automobiles and other aspects have been widely used. According to different energy storage mechanisms, supercapacitors are divided into electric double layer supercapacitors and pseudocapacitor supercapacitors. As one of the commonly used electrode materials for pseudocapacitor supercapacitors, transition metal compounds store energy through redox reactions between metal ions and electrolytes. ...

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): H01G11/24H01G11/30H01G11/46H01G11/86B82Y30/00B82Y40/00
CPCY02E60/13H01G11/24B82Y30/00B82Y40/00H01G11/30H01G11/46H01G11/86
Inventor 杜卫民张紫瑞刘立新许志献邓德华
Owner ANYANG NORMAL 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