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Aluminum-rare earth micro nano composite hydrogen manufacturing material

A micro-nano, rare earth technology, applied in the production of hydrogen, etc., can solve the problems of complex synthesis process of hydrogen production materials, incomplete reaction of hydrogen production materials, high cost of hydrogen production, etc., to achieve wide practicability, stable properties, and low product cost Effect

Inactive Publication Date: 2010-08-11
SHANGHAI NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The method of preparing hydrogen in the prior art is to prepare hydrogen by electrolysis of water. The disadvantages of this method are: complex equipment; high cost of preparing hydrogen; large power consumption
However, the disadvantages of these materials are: after reacting with water, a dense oxide protective film will be formed on part of the Al surface, resulting in incomplete reaction of the hydrogen production material and slow reaction rate; moreover, the synthesis process of the hydrogen production material is complicated and the production cost is low. high
So far, there is no ideal hydrolysis hydrogen production material in the world. Therefore, the invention of an aluminum-rare earth micro-nano composite hydrogen production material with easy-to-obtain raw materials, simple preparation process, low cost, good activity and high hydrolysis hydrogen production effect will help promote Efficient and clean energy technology - the development of hydrogen fuel cells and the expansion of the application of rare earth materials are of great significance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] The preparation steps of the Al-Ce micro-nano composite hydrogen production material in this example are as follows:

[0047] a. Weigh 1.7403g of aluminum powder and put it into a 50ml stainless steel ball mill jar;

[0048] b. Add 1.0ml of ethanol to the stainless steel tank, add 0.2603g of cerium powder into the stainless steel tank under argon protection, and seal the tank mouth with a lid;

[0049] c. Put the stainless steel tank on the planetary ball mill, the ball-to-material ratio is 60:1, the rotating speed is 500 rpm, and the ball mill is 8 hours to prepare Al-Ce micro-nano composite hydrogen production material 1 (Al87wt%-Ce13wt%) .

[0050] d. Take 0.1045g of Al-Ce micro-nano composite hydrogen production material 1 and react with 70ml of pure water at 70°C; measure the volume of hydrogen gas produced, and draw the hydrogen production curve according to the volume time ( figure 1 ).

[0051]e. the solution after the reaction is centrifuged, and after dryin...

Embodiment 2

[0053] The preparation process and steps of the Al-La micro-nano composite hydrogen production material in this example are as follows:

[0054] a. Weigh 1.7398g of aluminum powder and put it into a 50ml stainless steel ball mill jar;

[0055] b. Add 1.0ml of ethanol to the stainless steel tank, then add 0.2601g of lanthanum powder to the stainless steel tank under argon protection, and seal the tank mouth with a lid;

[0056] c. Put the stainless steel tank on the planetary ball mill at a ball-to-material ratio of 60:1, a rotating speed of 500 rpm, and ball milling for 8 hours to obtain Al-La micro-nano composite hydrogen production material 2 (Al87wt%-La13wt%) .

[0057] d. Take 0.1045g of Al-La micro-nano composite hydrogen production material 2 to react with 70ml of pure water at 70°C, measure the volume of hydrogen gas produced, and draw the hydrogen production curve according to the volume and time ( figure 1 ).

Embodiment 3

[0059] The preparation steps of the Al-Ce micro-nano composite hydrogen production material in this example are as follows:

[0060] a. Weigh 1.7399g of aluminum powder and put it into a 50ml stainless steel ball mill jar;

[0061] b. Add 1.0ml of ethanol to the stainless steel tank, add 0.2600g of yttrium powder into the stainless steel tank under argon protection, and seal the tank mouth with a lid;

[0062] c. Put the stainless steel tank on the planetary ball mill, the ball-to-material ratio is 60:1, the rotating speed is 500 rpm, and the ball mill is 8 hours to prepare Al-Y micro-nano composite hydrogen production material 3 (Al87wt%-Y13wt%) .

[0063] d. Take 0.1045g of Al-Y micro-nano composite hydrogen production material 3 and react with 70ml pure water at 70°C; measure the volume of hydrogen gas produced, and draw the hydrogen production curve according to the volume and time ( figure 1 ).

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Abstract

The invention belongs to a rare earth micro nano composite hydrogen manufacturing material, in particular to an aluminum-rare earth micro nano composite hydrogen manufacturing material. The existing material for manufacturing hydrogen by hydrolysis has the defects that after reacting with water, the surface of Al is formed with a compact oxide film, the hydrogen manufacturing reaction is not complete, the reaction rate is slow, the synthesizing process is complicated and the production cost is high. The aluminum-rare earth micro nano composite hydrogen manufacturing material of the invention is prepared from aluminum and rare-earth metal. The preparation method of the hydrogen manufacturing material has the following steps: adding aluminum powder, metal powder and salt into a stainless steel ball milling pot; adding absolute ethyl alcohol, adding the rare-earth metal powder under the protection of argon gas to seal the opening of the pot; placing the stainless steel pot on a planetary ball mill for ball milling for 1-2 hours, wherein the ratio of grinding media to material is 1:10-100, and the rotate speed is 300-600 revolutions per minute; and preparing the aluminum-rare earth micro nano composite hydrogen manufacturing material. The invention has the advantages that the preparation process is simple, no environmental pollution exists in the process of preparation; the hydrogen manufacturing material has small grain diameter, large specific surface area and high chemical activity; the hydrogen yield is high; and the raw materials has rich resources, low price and easy obtainment.

Description

technical field [0001] The invention belongs to rare-earth nanocomposite hydrogen production materials, in particular to an aluminum-rare earth micro-nano composite hydrogen production material. Background technique [0002] Energy shortage and environmental pollution have become two major problems facing the development of contemporary human society, and the development and utilization of clean energy is imminent. Hydrogen is an efficient, non-polluting and clean energy, which has extensive and important applications in the technical fields of national defense industry, transportation, metal cutting, medicine and health. Hydrogen has a high energy density, only water is produced after combustion, and CO with greenhouse effect is not produced 2 And other toxic gases, no pollution to the environment, is an ideal clean energy with great development potential. The method for preparing hydrogen in the prior art is to prepare hydrogen by electrolysis of water. The disadvantages...

Claims

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Application Information

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IPC IPC(8): C01B3/08
CPCY02E60/36
Inventor 余锡宾罗辉汪正军浦旭鑫
Owner SHANGHAI NORMAL UNIVERSITY
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