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Ammonia decomposition hydrogen production catalyst and preparation method and application thereof

A catalyst, ammonia decomposition technology, applied in electrochemical generators, fuel cells, electrical components, etc., can solve the problems of low ammonia decomposition activity and easy stratification, achieve high ammonia decomposition efficiency, solve stratification, and optimize catalytic activity Effect

Inactive Publication Date: 2019-10-25
FUZHOU UNIV ASSET MANAGEMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the defects in the prior art that the ammonia decomposition hydrogen production catalyst and the electrode are easy to delaminate, and the ammonia decomposition activity is low, thereby providing an ammonia decomposition hydrogen production catalyst, a preparation method and its application in Electrode application

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  • Ammonia decomposition hydrogen production catalyst and preparation method and application thereof
  • Ammonia decomposition hydrogen production catalyst and preparation method and application thereof
  • Ammonia decomposition hydrogen production catalyst and preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0047] This embodiment provides a catalyst for hydrogen production by ammonia decomposition, including the active component ruthenium (Ru), and the carrier is a mixture of yttria stabilized zirconia and alumina (YSZ / Al 2 o 3 ); Ru, YSZ and Al 2 o 3 The mass ratio is 8:60:40 (the mass content of Ru in the carrier is ω=8%);

[0048] The preparation method of above-mentioned catalyst comprises,

[0049] (1) YSZ and Al 2 o 3 After the powder was ball milled at 250r / min for 12h, weigh 2g (m 1) into a crucible and dried at 100°C for 10 hours, then roasted at 1100°C for 2 hours, and set aside;

[0050] (2) preparation mass fraction is the precursor aqueous solution of 5% ruthenium (RuCl 3 ), wherein, RuCl in the aqueous solution of the precursor of ruthenium 3 The mass of X, RuCl 3 The mass fraction of Ru in is b; the YSZ / Al 2 o 3 Completely soak in the aqueous solution of the precursor of ruthenium for 1h, then dry at 100°C for 2h, then bake at 450°C for 15min, take it ou...

Embodiment 2

[0059] This embodiment provides a catalyst for hydrogen production by ammonia decomposition, including the active component nickel (Ni), carrier YSZ; the mass ratio of Ni to YSZ is 40:100 (the mass content of Ni in the carrier is ω=40%);

[0060] The preparation method of above-mentioned catalyst comprises,

[0061] (1) After YSZ powder is ball milled at 250r / min for 12h, weigh 2g (m 1 ) into a crucible and dried at 100°C for 10 hours, then roasted at 1100°C for 2 hours, and set aside;

[0062] (2) Prepare an aqueous solution of nickel precursor with a mass fraction of 10% (Ni(NO 3 ) 3 , where (Ni(NO 3 ) 3 Mass is X, (Ni(NO 3 ) 3 The mass fraction of Ni in the medium is b; YSZ is completely immersed in the nickel precursor aqueous solution for 1 h, then dried at 100 °C for 2 h, and then roasted at 450 °C for 15 min, and its mass is called m after taking it out 2 , then calculate the mass content (ω') of Ni in the YSZ carrier;

[0063] (3) Repeat step (2) until ω is the...

Embodiment 3

[0071] The present embodiment provides a kind of ammonia decomposition hydrogen production catalyst, comprises active component ruthenium (Ru), carrier YSZ / CeO 2 ; Ru, YSZ and CeO 2 The mass ratio is 6:50:50 (the mass content of Ru in the carrier is ω=6%);

[0072] The preparation method of above-mentioned catalyst comprises,

[0073] (1) YSZ and CeO 2 After the powder was ball milled at 250r / min for 12h, weigh 2g (m 1 ) into a crucible and dried at 100°C for 10 hours, then roasted at 1100°C for 2 hours, and set aside;

[0074] (2) preparation mass fraction is the precursor aqueous solution (RuCl 3 ), wherein, RuCl in the aqueous solution of the precursor of ruthenium 3 The mass of X, RuCl 3 The mass fraction of Ru in is b; the YSZ / CeO 2 Completely soak in the aqueous solution of the precursor of ruthenium for 40min, then dry at 100°C for 2h, then bake at 450°C for 15min, take it out and call its mass m 2 , and then calculate YSZ / CeO 2 The mass content of Ru in the po...

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Abstract

The invention belongs to the technical field of catalyst preparation, particularly relates to an ammonia decomposition hydrogen production catalyst and a preparation method and application thereof, and particularly relates to an ammonia decomposition hydrogen production catalyst and a preparation method and application thereof in an electrode. The catalyst comprises an active component and a carrier, wherein the active component is ruthenium and / or nickel; the carrier is at least one of barium-based perovskite, zirconium oxide-based rare earth metal oxide, cerium oxide-based rare earth metal oxide, lanthanum gallate-based perovskite and aluminum oxide. The thermal expansion coefficient of the catalyst can be close to the thermal expansion coefficient of an electrode material, so that the problem that the catalyst and an electrode are easily layered due to heating is solved. The ruthenium and / or nickel are / is used as active components, so the catalyst prepared by loading ruthenium and / or nickel on the carrier has a good catalytic effect and high ammonia decomposition efficiency.

Description

technical field [0001] The invention belongs to the technical field of catalyst preparation, and in particular relates to an ammonia decomposition hydrogen production catalyst and its preparation method and application, in particular to an ammonia decomposition hydrogen production catalyst and its preparation method as well as its application and application in electrodes. Background technique [0002] Due to problems such as environmental pollution and the greenhouse effect, the energy structure dominated by traditional carbon-based energy is facing huge challenges. Hydrogen energy is considered to be an alternative to future fossil fuels due to its advantages such as cleanliness, high energy density per unit mass, and wide range of sources. sexual energy. With the gradual industrialization of hydrogen fuel cell technology, the efficient and carbon-free utilization of hydrogen energy will also be realized. At present, a key problem that needs to be solved is efficient and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/90H01M4/92H01M4/88H01M4/86H01M8/1007H01M8/22
CPCH01M4/86H01M4/8825H01M4/8828H01M4/9041H01M4/9075H01M4/921H01M4/925H01M8/222H01M8/1007Y02E60/50
Inventor 江莉龙罗宇陈崇启詹瑛瑛
Owner FUZHOU UNIV ASSET MANAGEMENT CO LTD
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