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

Mono-dispersed IrCu alloy catalyst as well as preparation method and application thereof

A technology of alloy catalyst and solvent, which is applied in the field of electrocatalysis, can solve problems such as reduction, achieve the effects of reducing reaction temperature, excellent OER activity, and improving catalyst activity

Inactive Publication Date: 2020-12-15
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are two ways to achieve this goal: (1) develop noble metal Ir-based catalyst supports to improve the utilization rate of noble metals, but such supports have not been found yet, because there are no other noble metals except Ir, Pt, Au A non-noble metal or non-metal (such as C material) carrier can resist strong acid chemical corrosion and high potential electrochemical corrosion at the same time; (2) add a second component, such as a transition metal, to reduce the amount of Ir used by forming an alloy, and at the same time Increased OER activity and perhaps stability

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
  • Mono-dispersed IrCu alloy catalyst as well as preparation method and application thereof
  • Mono-dispersed IrCu alloy catalyst as well as preparation method and application thereof
  • Mono-dispersed IrCu alloy catalyst as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] (1) Accurately weigh 0.00559g CuBr 2 (0.025mmol), dissolved in 3.5mL deionized water, added 0.5mLH 2 IrCl 6 (0.05mol / L) and stir at room temperature for 0.5h;

[0031] (2) Accurately weigh 0.01682g Na 2 h 2 P 2 o 7 (0.075mmol) was dissolved in 1mL deionized water, added dropwise to the solution in (1), and stirred at room temperature for 0.5h;

[0032] (3) Add 5mL of ethylene glycol to make H 2 The volume ratio of O and EG is 1:1, stirring at room temperature for 0.5h;

[0033] (4) Move the solution in (3) into an 80°C oil pan and stir for 12.0 hours;

[0034] (5) add ethanol and centrifuge, and then wash 4 times with a mixed solution of deionized water and ethanol to obtain IrCu nanoparticles.

Embodiment 2

[0036] (1) Accurately weigh 0.00559g CuBr 2 (0.025mmol), dissolved in 3.5mL deionized water, added 0.5mLH 2 IrCl 6 (0.05mol / L) and stir at room temperature for 0.5h;

[0037] (2) Accurately weigh 0.01682g Na 2 h 2 P 2 o 7 (0.075mmol) was dissolved in 1mL deionized water, added dropwise to the solution in (1), and stirred at room temperature for 0.5h;

[0038] (3) Add 5mL of ethylene glycol to make H 2 The volume ratio of O and EG is 1:1, stirring at room temperature for 0.5h;

[0039] (4) Move the solution in (3) into a 110°C oil pan and stir for 3.0 hours;

[0040] (5) add ethanol and centrifuge, and then wash 4 times with a mixed solution of deionized water and ethanol to obtain IrCu nanoparticles.

Embodiment 3

[0042] (1) Accurately weigh 0.00559g CuBr 2 (0.025mmol), dissolved in 0.25mL deionized water, added 0.5mLH 2 IrCl 6 (0.05mol / L) and stir at room temperature for 0.5h;

[0043] (2) Accurately weigh 0.01682g Na 2 h 2 P 2 o 7 (0.075mmol) was dissolved in 1mL deionized water, added dropwise to the solution in (1), and stirred at room temperature for 0.5h;

[0044] (3) Add 5mL of ethylene glycol to make H 2 The volume ratio of O and EG is 1:1, stirring at room temperature for 0.5h;

[0045] (4) Move the solution in (3) into a 140°C oil pan and stir for 0.1h;

[0046](5) add ethanol and centrifuge, and then wash 4 times with a mixed solution of deionized water and ethanol to obtain IrCu nanoparticles.

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
particle diameteraaaaaaaaaa
particle sizeaaaaaaaaaa
Login to View More

Abstract

The invention discloses a mono-dispersed IrCu alloy catalyst as well as a preparation method and application thereof, water is used for enhancing the reducing capacity of polyhydric alcohols, iridiumsalt and copper salt can be reduced at a low temperature to obtain IrCu alloy, precursor salt is separated and limited in a nano-scale micro-region by adding water-soluble phosphate insoluble in the polyhydric alcohols, and the mono-dispersed IrCu alloy catalyst is prepared. The method is simple in process, organic macromolecules do not need to be added to serve as a structure directing agent, andthe prepared mono-dispersed IrCu alloy nano particles can serve as an oxygen evolution catalyst to be used in an oxygen electrode of a water electrolysis cell.

Description

technical field [0001] The invention relates to a monodisperse IrCu alloy catalyst, a preparation method and application thereof, and belongs to the field of electrocatalysis. Background technique [0002] Hydrogen energy is considered to be the most promising energy carrier to replace traditional fossil fuels. Compared with other energy sources, hydrogen has a high calorific value (140MJ / kg), which is 3.26 times that of crude oil, 3.87 times that of natural gas, and 3.87 times that of coke. 5.19 times, and the combustion product is water, which is recognized as clean energy. Under the current serious background of my country's "three abandonment problems" (abandoned water, abandoned wind, and abandoned light), the use of renewable energy to electrolyze water to produce hydrogen has strong economic value. In recent years, SPE water electrolysis hydrogen production technology has become the focus of research in the field of hydrogen production due to its advantages of 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
Patent Type & Authority Applications(China)
IPC IPC(8): C25B11/08C25B1/04B22F9/24B82Y40/00B22F1/00
CPCC25B11/04C25B1/04B22F9/24B82Y40/00B22F1/054Y02E60/36
Inventor 邵志刚方达晖唐帅秦晓平
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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