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Preparation method and application of fe/alooh catalyst

A catalyst, fecl3·6h2o technology, applied in physical/chemical process catalysts, chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, etc., can solve the problem of low catalytic activity, complex preparation process and corrosiveness and other problems, to achieve the effect of increasing the active area, the hydrogen production process is simple, and the environment is pollution-free.

Active Publication Date: 2022-02-08
LUOYANG NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the existing aluminum activation methods have different defects, such as high cost, corrosiveness, difficult storage, uncontrollable reaction, slow hydrogen production rate, complicated preparation process, and low catalytic activity. This limits the application of aluminum-water reaction hydrogen production technology

Method used

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  • Preparation method and application of fe/alooh catalyst
  • Preparation method and application of fe/alooh catalyst
  • Preparation method and application of fe/alooh catalyst

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The preparation method of Fe / AlOOH catalyst comprises the following steps:

[0028] a. At room temperature (25°C), ultrasonic power of 150W, and ultrasonic frequency of 40kHz, add AlOOH powder into a beaker filled with deionized water and place it in an ultrasonic water bath for ultrasonic mixing for 1 hour, then add FeCl 3 ·6H 2 O, continue ultrasonic mixing for 0.5 h to obtain suspension A, the mass ratio of AlOOH powder to water is 1:250, the mass ratio of AlOOH powder to FeCl 3 ·6H 2 The molar ratio of O is 1:1;

[0029] b. Add suspension A in step a to sodium borohydride within 30s, mix (manual stirring is enough), react until black precipitate is formed, no bubbles are generated, and Fe / AlOOH suspension, sodium borohydride and FeCl are obtained 3 ·6H 2 The molar ratio of O is 3:1;

[0030] c. Suction filter the Fe / AlOOH suspension in step b, wash it with deionized water for 3 times, then wash it with absolute ethanol once, filter, and dry at 25°C for 10 h to ...

Embodiment 2

[0034] The preparation method of Fe / AlOOH catalyst comprises the following steps:

[0035] a. At room temperature (25°C), with an ultrasonic power of 120W and an ultrasonic frequency of 30kHz, add AlOOH powder into a beaker filled with deionized water and place it in an ultrasonic water bath for ultrasonic mixing for 3 hours, then add FeCl 3 ·6H 2 O, continue ultrasonic mixing for 2 h to obtain suspension A, the mass ratio of AlOOH powder to water is 1:500, and the mass ratio of AlOOH powder to FeCl 3 ·6H 2 The molar ratio of O is 2:1;

[0036] b. Add suspension A in step a to sodium borohydride within 30s, mix (manual stirring is enough), react until black precipitate is formed, no bubbles are generated, and Fe / AlOOH suspension, sodium borohydride and FeCl are obtained 3 ·6H 2 The molar ratio of O is 3:1;

[0037] c. Suction filter the Fe / AlOOH suspension in step b, wash it with deionized water for 3 times, then wash it with absolute ethanol once, filter, and dry at 25°C...

Embodiment 3

[0041] The preparation method of Fe / AlOOH catalyst comprises the following steps:

[0042] a. At room temperature (25°C), ultrasonic power 300W, ultrasonic frequency 50kHz, add AlOOH powder into a beaker filled with deionized water, put it in an ultrasonic water bath and ultrasonically mix for 0.5h, then add FeCl 3 ·6H 2 O, continue ultrasonic mixing for 0.5h to obtain suspension A, the mass ratio of AlOOH powder to water is 1:100, and the mass ratio of AlOOH powder to FeCl 3 ·6H 2 The molar ratio of O is 0.5:1;

[0043] b. Add suspension A in step a to sodium borohydride within 30s, mix (manual stirring is enough), react until black precipitate is formed, no bubbles are generated, and Fe / AlOOH suspension, sodium borohydride and FeCl are obtained 3 ·6H 2 The molar ratio of O is 3:1;

[0044] c. Suction filter the Fe / AlOOH suspension in step b, wash it with deionized water for 3 times, then wash it with absolute ethanol once, filter, and dry at 25°C for 10 h to obtain the ...

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Abstract

The invention discloses a preparation method of Fe / AlOOH catalyst, which comprises the following steps: a. After adding AlOOH powder into water for ultrasonic mixing, adding FeCl 3 ·6H 2 O, ultrasonically mixed to obtain suspension A, the mass ratio of AlOOH powder to water is 1: (50-600), AlOOH powder and FeCl 3 ·6H 2 The molar ratio of O is (0.5‑2): 1; b. Add suspension A in step a to sodium borohydride, mix, and react until no bubbles are generated to obtain Fe / AlOOH suspension, sodium borohydride and FeCl 3 ·6H 2 The molar ratio of O is (3‑4): 1; c. Suction filter, wash, and filter the Fe / AlOOH suspension in step b, and dry it at room temperature to obtain the Fe / AlOOH catalyst. The present invention adopts the wet chemical reduction method to prepare the Fe / AlOOH catalyst, and the prepared Fe / AlOOH catalyst has better stability, and has high catalytic activity when used to catalyze the reaction of aluminum water to produce hydrogen, and the whole hydrogen production process is simple , efficient, and no pollution to the environment.

Description

technical field [0001] The invention belongs to the technical field of aluminum water reaction hydrogen production. Background technique [0002] Fuel cell technology is an advanced clean energy technology. The fuel cell can directly convert the chemical energy of the fuel into electrical energy without being limited by the Carnot cycle. It has the advantages of high efficiency, no pollution, and long life. At present, fuel cell technology has made great progress, and the manufacturing cost has also been greatly reduced, but its wide-scale application and industrialization development are restricted by hydrogen source technology. Hydrogen is an ideal fuel for fuel cells. Portable hydrogen sources for fuel cells require high hydrogen storage capacity and no toxic substances (such as CO) for the hydrogen production or hydrogen storage materials used. At the same time, the hydrogen supply system is required to be relatively simple and compact. At present, the commonly used hyd...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/745C01B3/08
CPCB01J23/745C01B3/08C01B2203/1047Y02E60/36
Inventor 盖卫卓
Owner LUOYANG NORMAL UNIV
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