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Bi-NPs@GO/Al composite hydrolysis hydrogen production material and preparation method thereof

A composite hydrolysis and compound technology, applied in the production of hydrogen and other directions, can solve the problems of inability to apply hydrogen, slow hydrolysis reaction rate, etc., and achieve the effects of producing anytime, anywhere, reducing hydrogen storage, and increasing the rate of hydrogen production.

Inactive Publication Date: 2019-07-30
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, although a large number of active aluminum materials can react with water, the hydrolysis reaction rate of these materials is slow and cannot be applied to the field of rapid hydrolysis of aluminum to produce hydrogen

Method used

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  • Bi-NPs@GO/Al composite hydrolysis hydrogen production material and preparation method thereof
  • Bi-NPs@GO/Al composite hydrolysis hydrogen production material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] 100 mg of graphene oxide was ultrasonically dispersed in 100 mL of ethylene glycol, and 1 g of Bi(NO 3 ) 3 ·5H 2 O and 0.5g polyvinylpyrrolidone (PVP) were added to the ultrasonic dispersion of ethylene glycol and stirred for 30 minutes. Then the mixed solution was added into a hydrothermal reaction kettle, and reacted at 170° C. for 12 hours. After the reaction, the product was repeatedly washed with water and ethanol, and then dried at 70°C to obtain the Bi-NPs@GO composite.

[0020] 45g of aluminum powder and 5g of Bi-NPs@GO were added to the ball milling tank, and n-hexane was added as a protective solvent. Ball milling was carried out under the conditions of ball mass ratio of 20:1, ball mill speed of 800r / min, and ball milling time of 4h. After ball milling, cool for 30 minutes, and sieve and separate the ground metal powder to obtain the Bi-NPs@GO / Al composite hydrolysis hydrogen production material of the present invention, and then store the active material ...

Embodiment 2

[0023] 200mg graphene oxide was ultrasonically dispersed in 200mL ethylene glycol, 2.5g Bi(NO 3 ) 3 ·5H 2 O and 1g of polyvinylpyrrolidone (PVP) were added to the ultrasonic dispersion of ethylene glycol and stirred for 30 minutes. Then the mixed solution was added into a hydrothermal reaction kettle, and reacted at 170° C. for 12 hours. After the reaction, the product was repeatedly washed with water and ethanol, and then dried at 70°C to obtain the Bi-NPs@GO composite.

[0024] 47g of aluminum powder and 3g of Bi-NPs@GO were added to the ball milling tank, and n-hexane was added as a protective solvent. Ball milling was carried out under the conditions of ball mass ratio of 20:1, ball mill speed of 800r / min, and ball milling time of 4h. After ball milling, cool for 30 minutes, and sieve and separate the ground metal powder to obtain the Bi-NPs@GO / Al composite hydrolysis hydrogen production material of the present invention, and then store the active material powder.

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Embodiment 3

[0027] 100mg graphene oxide was ultrasonically dispersed in 100mL ethylene glycol, 0.8g Bi(NO 3 ) 3 ·5H 2 O and 0.5g polyvinylpyrrolidone (PVP) were added to the ultrasonic dispersion of ethylene glycol and stirred for 30 minutes. Then the mixed solution was added into a hydrothermal reaction kettle, and reacted at 170° C. for 12 hours. After the reaction, the product was repeatedly washed with water and ethanol, and then dried at 70°C to obtain the Bi-NPs@GO composite.

[0028] 46g of aluminum powder and 4g of Bi-NPs@GO were added to the ball milling tank, and n-hexane was added as a protective solvent. Ball milling was carried out under the conditions of ball mass ratio of 20:1, ball mill speed of 800r / min, and ball milling time of 4h. After ball milling, cool for 30 minutes, and sieve and separate the ground metal powder to obtain the Bi-NPs@GO / Al composite hydrolysis hydrogen production material of the present invention, and then store the active material powder.

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Abstract

The invention discloses a Bi-NPs@GO / Al composite hydrolysis hydrogen production material and a preparation method thereof, and belongs to the field of hydrogen preparation. The Bi-NPs@GO / Al compositehydrolysis hydrogen production material comprises, by mass, 70-90% of metal aluminum powder and the balance a graphene-loaded nano bismuth compound Bi-NPs@GO. Nano Bi particles are loaded on grapheneoxide through a hydrothermal method, then the Bi-NPs@GO and the aluminum powder are ball-milled in a protection solvent to obtain ball-milled powder, then the ball-milled powder is sieved and separated, and a sieved object is placed and stored. The Bi-NPs@GO / Al composite hydrolysis hydrogen production material prepared through the preparation method has the advantages of being simple in preparation method and capable of efficiently and quickly reacting with water at normal temperature.

Description

technical field [0001] The invention relates to a Bi-NPs@GO / Al composite hydrolysis hydrogen production material and a preparation method thereof, belonging to the technical field of hydrogen preparation. Background technique [0002] Energy issues have become one of the key issues in today's society. Hydrogen energy has attracted extensive attention due to its advantages such as high energy density, abundant content, and green and non-polluting combustion products. Traditional hydrogen production methods include ammonia cracking, water electrolysis, and biofuel hydrogen production. However, although traditional hydrogen production methods can produce a large amount of hydrogen, they face problems such as high production costs and difficulties in storage and transportation. [0003] In recent years, the reaction of aluminum and water to produce hydrogen has attracted extensive attention, especially in some special fields, due to its advantages of high reaction rate, simple ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B3/08
CPCC01B3/08Y02E60/36
Inventor 杨荣杰肖飞李建民
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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