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A kind of al-biocl aluminum-based composite hydrogen production material and preparation method thereof

An aluminum-based composite and aluminum powder technology is applied in the field of Al-BiOCl aluminum-based composite hydrogen production material and its preparation, which can solve the problems of inability to continuously release hydrogen in time, long reaction time, etc., and achieve non-toxic price cost and short start-up time. , the effect of fast hydrogen release

Active Publication Date: 2018-04-17
GUILIN UNIV OF ELECTRONIC TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide an Al-BiOCl aluminum-based composite hydrogen production material with high activity, high energy density, low cost, and rapid reaction under normal temperature and pressure, which alleviates the long reaction time of existing hydrogen production materials and cannot be sustained in time Hydrogen problem

Method used

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  • A kind of al-biocl aluminum-based composite hydrogen production material and preparation method thereof
  • A kind of al-biocl aluminum-based composite hydrogen production material and preparation method thereof
  • A kind of al-biocl aluminum-based composite hydrogen production material and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Adopt the high-energy mechanical ball milling method, under the protection of argon environment, weigh the mixed powder according to the mass ratio m(Al):m(BiOCl) = 0.5:0.5, respectively weigh a total of 1g, add it to the ball mill tank, and then press the ball-to-material ratio to be 60: 1 Add 15 small steel balls (about 60g) to seal the ball milling tank; put the ball milling tank on a Retsch PM400 planetary ball mill for high-energy ball milling. Aluminum matrix composite hydrogen production material. The samples obtained after ball milling were subjected to XRD diffraction. The experimental conditions were: diffracted beam CuKa, power 50KV×200 mA, tube pressure 40 kV, tube flow 40 mA, and the scanning range was 10°-90°. The results of diffraction data processing are as follows: figure 1 shown.

[0028] X-ray diffractometer (XRD) is used to analyze the diffraction pattern of the material, which is necessary to verify the composition of the material and analyze the ...

Embodiment 2

[0030] The high-energy mechanical ball milling method is adopted, the raw material used is powder, the particle size is in the micron level, the ball-to-material ratio is selected to be 60:1, and the mass ratio is m(Al):m(BiOCl) = 0.95 under argon environment protection: 0.05 Weigh 1g of the mixed powder and add it to the ball mill jar, then add 15 small steel balls (about 60g), seal it, put the ball mill jar on a Retsch PM400 planetary ball mill for high-energy ball milling, the ball milling speed is 250 rpm, and the ball milling time is After 5 h, a highly active aluminum-based composite hydrogen production material with uniform composition was finally obtained.

[0031] Weigh 0.01 g of the ball-milled sample into a 200 mL reaction bottle, seal the bottle mouth with sealing glue, put the reaction bottle into a water bath set at 25°C, keep a constant reaction temperature, and add 10 mL deionized water. The hydrogen gas produced in the experiment is cooled by the condensing t...

Embodiment 3

[0033] The high-energy mechanical ball milling method is adopted, the raw material used is powder, the particle size is in the micron level, the ball-to-material ratio is selected to be 60:1, and the mass ratio is m(Al):m(BiOCl) = 0.9 under argon environment protection: 0.1 Weigh 1g of the mixed powder and add it to the ball mill jar, then add 15 small steel balls (about 60g), seal it, put the ball mill jar on a Retsch PM400 planetary ball mill for high-energy ball milling, the ball milling speed is 250 rpm, and the ball milling time is After 5 h, a highly active aluminum-based composite hydrogen production material with uniform composition was finally obtained.

[0034] Weigh 0.01 g of the ball-milled sample into a 200 mL reaction bottle, seal the bottle mouth with sealing glue, put the reaction bottle into a water bath set at 25°C, keep a constant reaction temperature, and add 10 mL deionized water. The hydrogen gas produced in the experiment is cooled by the condensing tub...

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Abstract

The invention discloses an Al-BiOCl aluminum-based composite hydrogen production material and a preparation method thereof. The aluminum-based composite material is made by ball milling aluminum powder and BiOCl additives; the preparation method comprises: The ratio is m(Al): m(BiOCl)=x: 1-x, x=0.5-0.95, add aluminum powder and BiOCl, and then add grinding balls according to the ball-to-material ratio of 30-120:1, seal; put Enter the ball mill, set the ball milling conditions, ball mill, the ball mill speed is 100-250 rpm; the ball milling time is 1-10 h; finally take out the prepared aluminum-based composite material. The preparation process of the present invention is simple, the raw material is non-toxic and low in cost, real-time preparation is realized, the hydrogen production method is convenient to carry, and is a green and environment-friendly efficient hydrogen production method, which is suitable for applications such as fuel cell hydrogen supply.

Description

technical field [0001] The invention belongs to the technical field of mobile hydrogen source preparation, and in particular relates to an Al-BiOCl aluminum-based composite hydrogen production material and a preparation method thereof. Background technique [0002] Hydrogen energy is a secondary energy source. In recent years, the method of using aluminum water to produce hydrogen has attracted widespread attention. However, the performance of metal aluminum is lively, and the surface is easy to oxidize to form a film, which hinders the reaction with water, and the film formed during the reaction of aluminum water can also prevent the continued production of hydrogen. In order to solve this key problem, scholars from various countries have done a lot of research. Belitskus et al. used a strong alkaline solution to immerse pure aluminum, which was able to generate hydrogen and exhibit significantly high chemical activity (Ma G-L, Dai H-B, Zhuang D-W, XiaH-J, Wang P. Controlle...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B3/08C01G29/00C01F7/56
CPCY02E60/36
Inventor 徐芬赵冲孙立贤张翔飞邹勇进褚海亮
Owner GUILIN UNIV OF ELECTRONIC TECH
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