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Bimetal-based composite catalyst with fluffy structure as well as preparation method and application of bimetal-based composite catalyst

A composite catalyst, bimetallic technology, applied in metal/metal oxide/metal hydroxide catalysts, chemical instruments and methods, physical/chemical process catalysts, etc., can solve the problems of limited storage, high price, application limitations, etc. Achieving the effect of increased surface area, ease of operation, and improved reaction kinetics

Pending Publication Date: 2022-05-06
SHENYANG NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, noble metals such as Pt and Ru have better catalytic performance, but their high price and limited storage limit their practical application.

Method used

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  • Bimetal-based composite catalyst with fluffy structure as well as preparation method and application of bimetal-based composite catalyst
  • Bimetal-based composite catalyst with fluffy structure as well as preparation method and application of bimetal-based composite catalyst
  • Bimetal-based composite catalyst with fluffy structure as well as preparation method and application of bimetal-based composite catalyst

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] 1) Weigh 0.05g g-C 3 N 4 Place in 80mL deionized water and ultrasonically disperse for 30min to form dispersion system A;

[0045]2) Add 0.005mol ferrous sulfate heptahydrate and 0.005mol cobalt chloride hexahydrate to the dispersion system A in the above step 1) and stir to make them all dissolve to form dispersion system B;

[0046] 3) Add 4.5 g of glycine to the dispersion system B formed in the above step 2), stir to dissolve it completely, adjust the pH value to 12, and obtain dispersion system C;

[0047] 4) Slowly add sodium borohydride into the dispersion system C, and with magnetic stirring, to obtain solution D. After the solution D is kept at a temperature of 25° C., add pretreated nickel foam to continue the reaction;

[0048] 5) After the reaction is over, the nickel foam is taken out, washed with deionized water and ethanol successively and dried in vacuum to obtain a bimetallic matrix composite catalyst;

[0049] Wherein, step 4) in the solution D, the...

Embodiment 2

[0055] 1) Weigh 0.05g g-C 3 N 4 Place in 80mL deionized water and ultrasonically disperse for 30min to form dispersion system A;

[0056] 2) Add 0.005mol ferrous sulfate heptahydrate and 0.005mol cobalt chloride hexahydrate to the dispersion system A in the above step 1) and stir to make them all dissolve to form dispersion system B;

[0057] 3) Add 4.5 g of glycine to the dispersion system B formed in the above step 2), stir to dissolve it completely, adjust the pH value to 12, and obtain dispersion system C;

[0058] 4) Slowly add sodium borohydride into the dispersion system C, and with magnetic stirring, to obtain solution D. After the solution D is kept at a temperature of 25° C., add pretreated nickel foam to continue the reaction;

[0059] 5) After the reaction is over, the nickel foam is taken out, washed with deionized water and ethanol successively and dried in vacuum to obtain a bimetallic matrix composite catalyst;

[0060] Wherein, step 4) in the solution D, th...

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PUM

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Abstract

The invention discloses a fluffy-structure bimetal-based composite catalyst and a preparation method and application thereof.According to the preparation method, due to selection of raw materials and matching of the quantities of the raw materials, the catalyst with the unique fluffy structure is prepared, and due to the unique structure, the surface area of a catalyst material is increased, the surface roughness is increased, and the specific surface area of the catalyst material is increased; the surface active sites are increased, so that the catalytic activity is favorably improved, and the reaction kinetics of hydrogen production by photocatalytic hydrolysis of sodium borohydride is improved; the preparation method has the advantages of being simple in preparation process, easy to operate, low in preparation cost and the like, is suitable for large-scale preparation, is simple in subsequent treatment process, is beneficial to separation and contact of the sodium borohydride fuel liquid and the catalyst, and is easy to produce when being used.

Description

technical field [0001] The disclosure of the invention relates to the technical field of catalyst preparation, in particular to a bimetallic-based composite catalyst with a fluffy structure and its preparation method and application. Background technique [0002] For a long time, energy issues have always been the focus of people's attention. In order to improve the economy of hydrogen fuel production, storage and transportation, the application of industrial by-product hydrogen and renewable energy hydrogen production technology shall be carried out according to local conditions, and the industrialization of advanced and applicable hydrogen storage materials shall be accelerated. Carry out demonstration applications of storage and transportation technologies in various forms such as high-pressure gas, cryogenic gas, low-temperature liquid, and solid, explore the construction of hydrogen fuel transportation pipelines, and gradually reduce the cost of hydrogen fuel storage an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/24B01J23/755B82Y30/00B82Y40/00C01B3/06
CPCB01J27/24B01J23/755B82Y30/00B82Y40/00C01B3/06B01J35/50B01J35/40B01J35/39
Inventor 王艳张迪白树崇武士威任简王雪徐凤艳李国德
Owner SHENYANG NORMAL UNIV
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