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 complex preparation process, difficult reaction control, and corrosiveness and other problems, to achieve the effect of simple operation, simple hydrogen production process and no pollution to the environment

Active Publication Date: 2019-07-23
LUOYANG NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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 hyd

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
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Example Embodiment

[0026] Example 1

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

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

[0029] b. Add the suspension A in step a to the sodium borohydride within 30 seconds, mix (stir manually), and react until a black precipitate is formed, without bubbles, to obtain the Fe / AlOOH suspension, sodium borohydride and FeCl 3 ·6H 2 The molar ratio of O is 3:1;

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

[003...

Example Embodiment

[0033] Example 2

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

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

[0036] b. Add the suspension A in step a to the sodium borohydride within 30 seconds, mix (stir manually), and react until a black precipitate is formed, without bubbles, to obtain the Fe / AlOOH suspension, sodium borohydride and FeCl 3 ·6H 2 The molar ratio of O is 3:1;

[0037] c. Suction and filter the Fe / AlOOH suspension in step b, first wash with deionized water 3 times, then wash with absolute ethanol once, filter, and dry at 25°C for 10 h to obtain Fe / AlOOH catalyst .

[0038] Usi...

Example Embodiment

[0040] Example 3

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

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

[0043] b. Add the suspension A in step a to the sodium borohydride within 30 seconds, mix (stir manually), and react until a black precipitate is formed, without bubbles, to obtain the Fe / AlOOH suspension, sodium borohydride and FeCl 3 ·6H 2 The molar ratio of O is 3:1;

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

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Abstract

The invention discloses a preparation method of a Fe/AlOOH catalyst. The preparation method comprises steps as follows: a, AlOOH powder is added to water in the mass ratio of the AlOOH powder to waterbeing 1:(50-600), the mixture is subjected to ultrasonic mixing, FeCl3.6H2O is added, ultrasonic mixing is performed, and a suspension A is obtained, wherein the mole ratio of the AlOOH powder to FeCl3.6H2O is (0.5-2):1; b, the suspension A in the step a is added to sodium borohydride and mixed to react until no bubbles are produced, a Fe/AlOOH suspension is obtained, and the mole ratio of sodiumborohydride to FeCl3.6H2O is (3-4):1; c, the Fe/AlOOH suspension in the step b is subjection to suction filtration, cleaning and filtration and then is dried under the condition of room temperature,and a Fe/AlOOH catalyst is obtained. The Fe/AlOOH catalyst is prepared with a wet chemical reduction method is prepared, and the prepared Fe/AlOOH catalyst has better stability and has high catalyticactivity when used for catalyzing an aluminum-water reaction for hydrogen production; the whole hydrogen production process is concise and efficient and causes 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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IPC IPC(8): B01J23/745C01B3/08
CPCB01J23/745C01B3/08C01B2203/1047Y02E60/36
Inventor 盖卫卓
Owner LUOYANG NORMAL UNIV
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