Twisted nano strip-shaped Co-Fe-B catalyst as well as preparation method and application thereof

A co-fe-b, catalyst technology, applied in chemical instruments and methods, physical/chemical process catalysts, metal/metal oxide/metal hydroxide catalysts, etc., can solve the problem of limited reserves, general catalytic performance and high cost and other problems, to achieve the effect of reducing preparation cost, low investment cost and easy operation

Pending Publication Date: 2020-08-07
SHENYANG NORMAL UNIV
View PDF7 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, the present invention discloses a twisted nanobelt-shaped Co-Fe-B catalyst, a preparation method and its application to solve the problem that the existing noble metal-based catalysts cannot meet the existi

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
  • Twisted nano strip-shaped Co-Fe-B catalyst as well as preparation method and application thereof
  • Twisted nano strip-shaped Co-Fe-B catalyst as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0048] Example 1:

[0049] Weigh 1.4010g ferrous sulfate heptahydrate and 1.4055g cobalt sulfate heptahydrate and dissolve ultrasonically in 70mL deionized water to form solution A; weigh 4.5042g glycine and dissolve in 20mL deionized water to form solution B; combine B solution and A solution Mix and magnetically stir for 1 hour to form solution C; dissolve 3.8 g of sodium hydroxide in 10 mL of deionized water to form solution D; titrate solution D to solution C to obtain solution E; add 2.7463 g of sodium borohydride to solution E, A brown solution F is formed; add foamed nickel to brown solution F, react for 5 minutes, after the reaction is over, remove the foamed nickel from solution F, wash it with an ethanol solution consisting of 20mL of absolute ethanol and 10mL of water, and dry the resulting black The substance is the target product CoFeB catalyst.

[0050] See figure 1 As shown, it can be seen from the SEM picture that the surface of the CoFeB catalyst is a kinked ribbo...

Example Embodiment

[0051] Example 2:

[0052] Weigh 1.4010g ferrous sulfate heptahydrate and 0.5560g cobalt sulfate heptahydrate and dissolve ultrasonically in 70mL deionized water to form solution A; weigh 4.5042g glycine and dissolve in 20mL deionized water to form solution B; combine B solution and A solution Mix and magnetically stir for 1 hour to form solution C; dissolve 3.8 g of sodium hydroxide in 10 mL of deionized water to form solution D; titrate solution D to solution C to obtain solution E; add 2.7463 g of sodium borohydride to solution E, A brown solution F is formed; the foam sponge is added to the brown solution F and reacted for 5 min. After the reaction is completed, the foamed copper is taken out of the solution F, washed with an ethanol solution consisting of 20 mL of absolute ethanol and 10 mL of water, and dried to obtain a black color The substance is the target product Co 5 Fe 2 B catalyst.

[0053] According to experiments, the kinked ribbon structure of the catalyst has an ...

Example Embodiment

[0054] Example 3:

[0055] Weigh 1.4010g ferrous sulfate heptahydrate and 0.2811g cobalt sulfate heptahydrate and dissolve ultrasonically in 70mL deionized water to form solution A; weigh 4.5042g glycine and dissolve in 20mL deionized water to form solution B; combine B solution and A solution Mix and magnetically stir for 1 hour to form solution C; dissolve 3.8 g of sodium hydroxide in 10 mL of deionized water to form solution D; titrate solution D to solution C to obtain solution E; add 6.8094 g of sodium borohydride to solution E, A brown solution F is formed; add foamed nickel to brown solution F, react for 5 minutes, after the reaction is over, remove the foamed nickel from solution F, wash it with an ethanol solution consisting of 20mL of absolute ethanol and 10mL of water, and dry the resulting black The substance is the target product Co 5 FeB catalyst.

[0056] See figure 2 As shown, the hydrogen production rate of the catalyst at room temperature 25℃ to catalyze the hy...

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 sizeaaaaaaaaaa
The average particle sizeaaaaaaaaaa
Login to view more

Abstract

The invention discloses a twisted nano strip-shaped Co-Fe-B catalyst as well as a preparation method and application thereof; the chemical formula of the catalyst is CoxFeyB, wherein the ratio of y tox is more than 0 and less than 1; the appearance of the catalyst is of a twisted strip-shaped structure, the surface of the catalyst is composed of nano microspheres, and the particle size of the nano microspheres is 50-200 nm; the catalyst adopts a chemical reduction process; the preparation process is simple, the reaction is rapid, the operation is easy, the investment cost is low, any high-temperature and high-pressure process is not involved, the prepared CoxFeyB nano material avoids the defects that a traditional powder material is easy to agglomerate and difficult to recycle and reuse,has the advantages of high stability and the like, and can be used for catalytic hydrolysis of sodium borohydride to produce hydrogen.

Description

technical field [0001] The disclosure of the invention relates to the technical field of catalyst preparation, in particular to a twisted nanoribbon-shaped Co-Fe-B catalyst, a preparation method and an application thereof. Background technique [0002] Hydrogen energy, because of its cleanliness and high efficiency, has become one of the ideal new energy sources in the future and has broad application prospects. Hydrogen production technology is one of the main problems to be solved in the process of hydrogen energy utilization and development. Among many hydrogen storage materials, sodium borohydride (NaBH 4 ) has become one of the more potential hydrogen storage materials due to its advantages of safe storage, convenient transportation, high hydrogen storage energy density (10.6wt.%), and relatively low cost. Sodium borohydride produces hydrogen by hydrolysis, 1mol NaBH 4 It can combine with water to produce 4mol hydrogen. Therefore, its actual hydrogen production mass...

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): B01J23/75B01J35/02B01J35/08C01B3/06
CPCB01J35/02B01J35/08B01J35/023B01J23/75C01B3/065Y02E60/36
Inventor 王艳李国德武士威周功邹铠潞张迪
Owner SHENYANG NORMAL UNIV
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.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap