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Dual-carrier modified ternary alloy nano-cavity catalyst as well as preparation method and application thereof

A ternary alloy and catalyst technology, applied in chemical instruments and methods, physical/chemical process catalysts, chemical/physical processes, etc., can solve the problems of slow development of hydrogen production, achieve low preparation cost, and be easy to use and produce , the effect of increasing the probability of contact

Pending Publication Date: 2022-03-25
SHENYANG NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the development of hydrogen production is sluggish and has become a key technology for the "stuck neck" of the hydrogen energy industry

Method used

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  • Dual-carrier modified ternary alloy nano-cavity catalyst as well as preparation method and application thereof
  • Dual-carrier modified ternary alloy nano-cavity catalyst as well as preparation method and application thereof
  • Dual-carrier modified ternary alloy nano-cavity catalyst as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] 1) Take 0.1g g-C 3 N 4 Ultrasonic dispersion into 80 mL of deionized water to prepare a coarse dispersion system A;

[0048] 2) get 1.1896g cobalt chloride hexahydrate, 1.6487g sodium tungstate dihydrate, 4.5042g glycine and join in above-mentioned coarse dispersion system A, magnetic stirring makes it dissolve, forms dispersion system B;

[0049] 3) Ultrasound for dispersion system B for 1 h, adjust the pH to 11, and prepare dispersion system C;

[0050]4) Take 1.5132g of sodium borohydride and slowly add it into the dispersion system C of step 3), and carry out magnetic stirring for 0.5h;

[0051] 5) put the pretreated nickel foam carrier into the dispersion system formed in the above step 4), and the reaction time is 5min;

[0052] 6) after the reaction finishes, take out the nickel foam, and obtain g-C through washing and vacuum drying 3 N 4 Co-W-B nanocavity catalyst modified with foamed Ni double carrier, the scanning electron microscope image of the catalyst...

Embodiment 2

[0057] 1) Take 0.01g g-C 3 N 4 Ultrasonic dispersion into 80 mL of deionized water to prepare a coarse dispersion system A;

[0058] 2) get 1.1896g cobalt chloride hexahydrate, 1.6487g sodium tungstate dihydrate, 4.5042g glycine and join in above-mentioned coarse dispersion system A, magnetic stirring makes it dissolve, forms dispersion system B;

[0059] 3) Ultrasound for dispersion system B for 1 h, adjust pH to 10, and make dispersion system C;

[0060] 4) Take 1.5132g of sodium borohydride and slowly add it into the dispersion system C of step 3), and carry out magnetic stirring for 1h;

[0061] 5) put the pretreated nickel foam carrier into the dispersion system formed in the above step 4), and the reaction time is 10min;

[0062] 6) after the reaction finishes, take out the nickel foam, and obtain g-C through washing and vacuum drying 3 N 4 and Co-W-B nanocavity catalysts modified with foamed Ni double supports. The scanning electron microscope image of the catalys...

Embodiment 3

[0067] 1) Take 2g g-C 3 N 4 Ultrasonic dispersion into 80 mL of deionized water to prepare a coarse dispersion system A;

[0068] 2) get 2.3792g cobalt chloride hexahydrate, 1.6487g sodium tungstate dihydrate, 4.5042g glycine and join in above-mentioned coarse dispersion system A, magnetic stirring makes it dissolve, forms dispersion system B;

[0069] 3) Ultrasound for dispersion system B for 2 hours, adjust pH to 13.5, and prepare dispersion system C;

[0070] 4) Take 1.5132g of sodium borohydride and slowly add it into the dispersion system C of step 3), and carry out magnetic stirring for 1h;

[0071] 5) put the pretreated nickel foam carrier into the dispersion system formed in the above step 4), and the reaction time is 10min;

[0072] 6) after the reaction finishes, take out the nickel foam, and obtain g-C through washing and vacuum drying 3 N 4 Co-W-B nanocavity catalyst modified with foamed Ni double carrier, the scanning electron microscope image of the catalyst...

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Abstract

The invention discloses a double-carrier modified ternary alloy nano-cavity catalyst and a preparation method and application thereof, the catalyst with a unique nano-cavity multilevel structure can be prepared by the method, more active sites are exposed on the surface, the contact probability of borohydride radicals and the surface of the catalyst is increased, and the catalytic activity of the catalyst is improved. The adsorption and desorption of hydrogen are facilitated, the hydrogen desorption kinetics is increased, and the hydrolysis hydrogen production rate is increased; 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 at any time when being used.

Description

technical field [0001] The present invention discloses the technical field of catalyst preparation, in particular to a dual-carrier modified ternary alloy nano-cavity catalyst and a preparation method and application thereof. Background technique [0002] The "New Energy Vehicle Industry Development Plan (2021-2035)" issued on October 20, 2020 pointed out to improve the economy of hydrogen fuel production, storage and transportation. Carry out the application of industrial by-product hydrogen and renewable energy hydrogen production technology according to local conditions, and accelerate the industrialization of advanced and applicable hydrogen storage materials. Carry out demonstration applications of various forms of storage and transportation technologies such as high-pressure gaseous state, cryogenic gaseous state, low-temperature liquid state and solid state, explore the construction of hydrogen fuel transportation pipelines, and gradually reduce the cost of hydrogen f...

Claims

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Application Information

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IPC IPC(8): B01J27/24C01B3/04
CPCB01J27/24C01B3/04B01J35/39Y02E60/36
Inventor 王艳李国德周功丛海越王雪任简武士威
Owner SHENYANG NORMAL UNIV
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