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Preparation method and application of ammonia borane hydrolysis hydrogen production catalyst

A technology for hydrogen production and catalysts by hydrolysis, applied in chemical instruments and methods, physical/chemical process catalysts, hydrogen production, etc., can solve problems such as danger and high cost, and achieve easy operation, high porosity, and abundant mesopores structure effect

Active Publication Date: 2021-06-25
HENAN POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But in this preparation process CH 4 、H 2 Potentially dangerous and costly use of

Method used

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  • Preparation method and application of ammonia borane hydrolysis hydrogen production catalyst
  • Preparation method and application of ammonia borane hydrolysis hydrogen production catalyst
  • Preparation method and application of ammonia borane hydrolysis hydrogen production catalyst

Examples

Experimental program
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Effect test

Embodiment 1

[0034] Example 1: Ni-Mo 2 C / γ-Al 2 O 3 Catalyst preparation and passivation

[0035] (1) Weigh 0.2598g of ammonium paramolybdate, 0.2120g of nickel acetate, and 0.1547g of glucose with an electronic balance, put them in a 10mL small beaker, measure 1.5mL of ammonia water with a measuring cylinder, add it to the beaker, and stir until it is completely dissolved to form a uniform mixture;

[0036] (2) Weigh 0.3g γ-Al 2 O 3 , into a 25mL small beaker. Then drop the blue mixture obtained in step (1) into γ-Al 2 O 3 In the small beaker, stir evenly with a glass rod, then seal the small beaker with plastic wrap, place it in a sonicator for sonication for 20 min, and then let the mixture stand for 12 h. Subsequently, the mixed solution after standing was placed in an oven at 110° C. for drying for 24 h to obtain a tan solid. Grind the obtained solid into fine powder with an agate mortar, put it into a porcelain boat, place it in a tube furnace under the atmosphere of Ar (100...

Embodiment 2

[0040] with N 2 Isothermal adsorption-desorption analysis of specific surface area and pore size distribution. For specific results, see image 3 and 4 . Example 2: Ni-Mo of the present invention 2 C / γ-Al 2 O 3 Performance test as ammonia borane hydrogen production catalyst:

[0041] (1) Preparation of catalyst:

[0042] 10mg of Ni-Mo prepared by the present invention 2 C / γ-Al 2 O 3 The catalyst was placed in a 50mL single-neck round-bottomed flask, 2.5mL of distilled water was measured with a graduated cylinder, and poured into the round-bottom flask containing the catalyst. The round-bottom flask was placed in a sonicator for sonication for 2 min, and then placed at a constant temperature of 30 °C. Ready to use in bathtub.

[0043] (2) Configuration of ammonia borane aqueous solution:

[0044] Accurately weigh 0.2 g of NaOH and place it in a 25 mL beaker, add 2.5 mL of water, ultrasonicate for 30 s to dissolve it completely, then add 45 mg of ammonia borane to the...

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Abstract

The invention discloses a preparation method and application of an ammonia borane hydrolysis hydrogen production catalyst. The invention relates to the technical field of molybdenum carbide material preparation and hydrogen production. The method comprises the steps: (1) dissolving ammonium paramolybdate, nickel acetate and glucose in ammonia water, and stirring until complete dissolution to form a uniform blue mixed solution; (2) dropwise adding the uniform solution obtained in the step (1) into a container containing a metal oxide, uniformly stirring, and sealing the solvent; (3) standing the mixed solution subjected to ultrasonic treatment in the step (2) for a second preset time, and drying the mixed solution after standing; and (4) grinding the solid obtained in the step (3) into fine powder, putting the fine powder into a porcelain boat, carrying out staged heating heat treatment, and passivating to obtain the Ni-Mo2C / gamma-Al2O3 catalyst. The invention provides the synthesis method of the supported Ni-Mo2C catalyst, wherein the synthesis method is simple in operation process, easy to control, safe, environment-friendly, low in synthesis temperature and easy for large-scale production.

Description

technical field [0001] The invention relates to a preparation method of a supported catalyst and the technical field of hydrogen production from ammonia borane, in particular to a supported Ni-Mo 2 Preparation method of C catalyst. Background technique [0002] The environmental problems brought about by the excessive use of fossil energy have attracted widespread attention. At the same time, due to the limited reserves and non-renewable properties of fossil energy, people are constantly looking for new clean energy. Hydrogen energy is known as the green energy of the 21st century due to its cleanliness, high efficiency, wide sources and high energy density, and will occupy an important position in the future energy system. Replacing fossil energy with hydrogen energy is one of the best ways to solve the future energy shortage and environmental pollution and promote the sustainable development of human society. Since hydrogen is a flammable and explosive gas, the safe and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/22B01J35/10C01B3/06
CPCB01J27/22C01B3/06C01B2203/0277B01J35/615Y02E60/36
Inventor 刘宝忠刘宪云范燕平张大峰时建朝陈玉梅卞琳艳
Owner HENAN POLYTECHNIC UNIV
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