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

Preparation method of layered ferronickel hydroxide electrode

A hydroxide, nickel-iron technology, applied in electrodes, electrolysis process, electrolysis components, etc., can solve the problem of poor chemical stability and activity of layered nickel-iron hydroxide, and limit the industrial utilization of layered nickel-iron hydroxide, etc. problems, to achieve the effect of superior electrocatalytic activity and stability, good sample activity, and strong controllability

Active Publication Date: 2017-02-08
XI AN JIAOTONG UNIV
View PDF3 Cites 37 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the chemical stability and activity of layered nickel-iron hydroxides synthesized by solvothermal method are poor, which limits the further industrial utilization of layered nickel-iron hydroxides.

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 layered ferronickel hydroxide electrode
  • Preparation method of layered ferronickel hydroxide electrode
  • Preparation method of layered ferronickel hydroxide electrode

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] 1) Put 2cm×5cm copper foam in concentrated hydrochloric acid for ultrasonic cleaning for 5 minutes, rinse the foam copper repeatedly with deionized water, and then ultrasonically clean it in deionized water for 5 minutes;

[0035] 2) Prepare a solution containing iron salt, nickel salt and urea, wherein the concentration of iron salt is: 18mmol / L, the concentration of nickel salt is: 12mmol / L, and the concentration of urea is: 60mmol / L; wherein, the iron salt is ferric sulfate; The nickel salt is nickel sulfate.

[0036] 3) Take an appropriate amount of the above solution and put it in a 30mL stainless steel reactor with Teflon lining and put it into the copper foam cleaned in step 1). The hydrothermal kettle was placed in an oven at 120°C for 12 hours, cooled to room temperature naturally, rinsed repeatedly with deionized water and absolute ethanol, and washed with N 2 Perform purging and drying to obtain a NiFe-LDH electrode; wherein, the volume filling amount of the...

Embodiment 2

[0041] 1) Put 2cm×5cm nickel foam in concentrated hydrochloric acid for ultrasonic cleaning for 5 minutes, rinse the foam nickel repeatedly with deionized water, and then put it into deionized water for ultrasonic cleaning for 5 minutes;

[0042] 2) Prepare a solution containing iron salt, nickel salt and urea, wherein the concentration of iron salt is: 18mmol / L, the concentration of nickel salt is: 12mmol / L, and the concentration of urea is: 60mmol / L; wherein, the iron salt is ferric chloride ; The nickel salt is nickel chloride.

[0043] 3) Take an appropriate amount of the above solution and put it in a 30mL stainless steel reaction kettle with a polytetrafluoroethylene lining and put it into the nickel foam cleaned in step 1). The hydrothermal kettle was placed in an oven at 120°C for 12 hours, cooled to room temperature naturally, rinsed repeatedly with deionized water and absolute ethanol, and washed with N 2 Perform purging and drying to obtain a NiFe-LDH electrode; wh...

Embodiment 3

[0047] 1) Put the 2cm×5cm copper foam in concentrated hydrochloric acid for ultrasonic cleaning for 5 minutes, rinse the foam copper repeatedly with deionized water, and then put it into deionized water for ultrasonic cleaning for 5 minutes;

[0048] 2) Prepare a solution containing iron salt, nickel salt and urea, wherein the concentration of iron salt is: 18mmol / L, the concentration of nickel salt is: 12mmol / L, and the concentration of urea is: 60mmol / L; wherein, the iron salt is iron acetate; The nickel salt is nickel acetate.

[0049] 3) Take an appropriate amount of the above solution and put it in a 30mL stainless steel reactor with Teflon lining and put it into the copper foam cleaned in step 1). The hydrothermal kettle was placed in an oven at 120°C for 12 hours, cooled to room temperature naturally, rinsed repeatedly with deionized water and absolute ethanol, and washed with N 2 Perform purging and drying to obtain a NiFe-LDH electrode; wherein, the volume filling am...

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 discloses a preparation method of a layered ferronickel hydroxide electrode. The preparation method comprises the following steps: preparing a solution containing a ferric salt, a nickel salt and urea, wherein the concentration of the ferric salt is 1-100mmol / L, the concentration of the nickel salt is 1-100mmol / L and the concentration of the urea is 2-200mmol / L; and placing a substrate into the solution containing the ferric salt, the nickel salt and the urea, then placing the substrate in a hydrothermal reactor at the temperature of 60-180 DEG C, keeping the temperature for 1-20h, then washing and drying the substrate, and carrying out plasma treatment or high temperature calcination treatment in a protective atmosphere finally to obtain the layered ferronickel hydroxide electrode. The preparation method, is lower in reaction temperature, short in reaction time, simple in preparation process, strong in controllability and good in repeatability, improves the production efficiency, lowers the production cost, is green and environmental friendly and can effectively solve the problem of environmental pollution without participation of an organic solvent and a toxic chemical reagent in the reaction process.

Description

technical field [0001] The application belongs to the field of thin film electrode preparation, in particular to a method for preparing a layered nickel-iron hydroxide electrode. Background technique [0002] As a new type of functional material, nickel-iron hydroxide with a layered structure has high specific surface area, good thermal and electrical conductivity, good intrinsic damping, abundant reserves of required elements, and the sheets can be detached and reassembled. Excellent characteristics such as electrocatalytic hydrogen production and oxygen production electrodes. Nickel iron hydroxide is used in gas storage, catalyst carrier, lithium ion secondary battery electrode material, lightweight structure material, electrocatalytic water splitting material, electrocatalytic carbon dioxide reduction material, photocatalytic co-catalyst material, supercapacitor electrode material and fuel Many new technology fields such as batteries have huge potential application value...

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): C25B11/06
CPCC25B11/075
Inventor 沈少华王蒙桑杰·马图拉托马斯·费舍尔
Owner XI AN JIAOTONG 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