Layered duplex metal hydroxide composite structure electrocatalyst and preparation method

A layered hydroxide and layered bimetal technology, applied in the direction of electrodes, electrolysis process, electrolysis components, etc., to achieve the effects of environmental friendliness, optimized adsorption energy, and convenient operation

Active Publication Date: 2019-01-18
JIANGSU UNIV
8 Cites 39 Cited by

AI-Extracted Technical Summary

Problems solved by technology

At present, there are no reports on the preparation of CoFe-LDH/NiFe-LDH/NF 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
View more

Abstract

The invention relates to a layered duplex metal hydroxide composite structure electrocatalyst and a preparation method, belonging to the technical field of electrocatalysts. Ferrocobalt layered hydroxide, which takes foamed nickel as a base, serves as a working electrode, and a platinum wire and a silver/silver chloride electrode serve as a counter electrode and a reference electrode respectively.Weigh Ni(NO3)2.6H2O and FeSO4.7H2O in a beaker, add deionized water therein the beaker to form a solution A, and carry out magnetic stirring until complete dissolution; in an indoor temperature condition, the potential is from minus 1.2V to minus 0.8 V, and the solution A serves as electrolyte to perform constant potential deposition; take out the foamed nickel after the deposition, then wash cleanly by using the deionized water and absolute ethyl alcohol, and dry to obtain the layered duplex metal hydroxide composite structure electrocatalyst.

Application Domain

Electrode shape/forms

Technology Topic

Silver chloride electrodeNickel +10

Image

  • Layered duplex metal hydroxide composite structure electrocatalyst and preparation method
  • Layered duplex metal hydroxide composite structure electrocatalyst and preparation method
  • Layered duplex metal hydroxide composite structure electrocatalyst and preparation method

Examples

  • Experimental program(6)

Example Embodiment

[0026] Example 1: Preparation of CoFe-LDH/NF nanosheets:
[0027] Weigh 2mmol Fe(NO 3 ) 3 ·9H 2 O, 2mmol Co(NO 3 ) 2 ·6H 2 O, 4mmol of ammonium fluoride and 10mmol of urea in a beaker, add deionized water to it, magnetically stir for 20min until it is completely dissolved, then add the resulting transparent orange-yellow solution to the polytetrafluoroethylene reactor, and add the dried nickel foam Immerse, conduct a hydrothermal reaction, react at 120°C for 6 hours; after it is naturally cooled to room temperature, take out the foamed nickel, wash with water and alcohol for 3 times, and dry to obtain CoFe-LDH/NF.

Example Embodiment

[0028] Example 2: Preparation of CoFe-LDH/NiFe-LDH-200S/NF sample:
[0029] Take 6mmol Ni(NO 3 ) 2 ·6H 2 O and 6mmol FeSO 4 ·7H 2 Put O in a beaker, add 50 mL of deionized water to it, stir magnetically until it is completely dissolved, and obtain a homogeneous solution A for use. The electrodeposition process is realized in a three-electrode system. First, the dried CoFe-LDH/NF is used as the working electrode, and the platinum wire and silver/silver chloride electrode are used as the counter electrode and the reference electrode, respectively. At room temperature, the potential is -1.2 ~ -0.8V, solution A is used as the electrolyte, and the constant potential is deposited for 200s. After the deposition is completed, remove the foamed nickel with tweezers, then rinse it with deionized water and absolute ethanol, and dry it to obtain the CoFe-LDH/NiFe-LDH/NF composite material. The material is named CoFe-LDH/NiFe-LDH/NF-3.

Example Embodiment

[0030] Example 3: Preparation of CoFe-LDH/NiFe-LDH-50S/NF sample:
[0031] The preparation method of the electrocatalytic material is basically the same as that of Example 2, except that the constant potential deposition time is 50s. The material is named CoFe-LDH/NiFe-LDH/NF-1.
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

Description & Claims & Application Information

We can also present the details of the Description, Claims and Application information to help users get a comprehensive understanding of the technical details of the patent, such as background art, summary of invention, brief description of drawings, description of embodiments, and other original content. On the other hand, users can also determine the specific scope of protection of the technology through the list of claims; as well as understand the changes in the life cycle of the technology with the presentation of the patent timeline. Login to view more.
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

Similar technology patents

Method for preparing lignin polyether polyols

ActiveCN103772693ASimple stepsSimple processFurfuryl alcoholEnzymatic hydrolysis
Owner:单成敏

Scraper conveyor chain fluttering fault diagnosis method

ActiveCN106404388ASimple stepsReasonable designMachine gearing/transmission testingCoal miningEngineering
Owner:XIAN UNIV OF SCI & TECH

Method for oriented biosynthesis of GAMG

InactiveCN101603067AImprove reaction efficiencySimple stepsMicroorganism based processesFermentationPenicillium purpurogenumDrug biotransformation
Owner:BEIJING INSTITUTE OF TECHNOLOGYGY

Interprocess communication method and system, and server

ActiveCN104268025ASimple stepsImprove convenienceInterprogram communicationTransmissionClient-sideCommunication interface
Owner:ZHUHAI BAOQU TECH CO LTD

Signal generating method for achieving preset track deception and wired test system

ActiveCN104777493ASimple stepsGood deceptionSatellite radio beaconingSatelliteReal signal
Owner:湖南中电星河电子有限公司

Classification and recommendation of technical efficacy words

  • Simple steps
  • Short reaction time

High-concentration fast preparation method for silver nanowires

InactiveCN101934378AShort reaction timeImprove reaction efficiency and equipment utilizationCopper chlorideMother liquor
Owner:ZHEJIANG UNIV

Foliar compound fertilizer and preparation method thereof

InactiveCN101857472AControl temperature lowShort reaction timeOrganic fertilisersUrea compound fertilisersHumic acidChemistry
Owner:万物生(深圳)生物科技控股有限公司

People also interested in

Easy to operateEnvironmentally friendlyStrong repeatabilityMany active sitesEnhanced mass transferComposite structureMaterials scienceAlcoholFerricElectric potentialPlatinum
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.

© 2023 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap