Ferronickel catalytic material and preparation method thereof, and application of ferronickel catalytic material in preparing hydrogen by electrolyzing water and preparation of liquid solar fuel

A catalytic material, a technology for electrolyzing water, applied in catalyst activation/preparation, chemical instruments and methods, hydroxyl compound preparation, etc., can solve the problems of high difficulty, complex process, high energy consumption, avoid unsafe factors and improve yield , The effect of reducing the energy consumption per unit of hydrogen production

Active Publication Date: 2019-09-03
DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These preparation methods use a large number of raw materials, the process is complicated, the energy consumption is high, and the large-scale industrial preparation is difficult.

Method used

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  • Ferronickel catalytic material and preparation method thereof, and application of ferronickel catalytic material in preparing hydrogen by electrolyzing water and preparation of liquid solar fuel
  • Ferronickel catalytic material and preparation method thereof, and application of ferronickel catalytic material in preparing hydrogen by electrolyzing water and preparation of liquid solar fuel
  • Ferronickel catalytic material and preparation method thereof, and application of ferronickel catalytic material in preparing hydrogen by electrolyzing water and preparation of liquid solar fuel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0088] A new nickel-iron anode catalyst was prepared on the basis of commercially available nickel mesh, and commercially available Raney nickel cathode was used to electrolyze water under the condition of strong alkali and high temperature (30%KOH, 80℃).

[0089] (1) A 60-mesh Raney nickel cathode catalyst is used in commercial alkaline electrolyzed water industrial equipment, soaked in 1M NaOH solution for 24 hours, rinsed with deionized water until the solution is neutral, and dried at room temperature.

[0090] (2) Preparation of nickel-iron mesh anode catalyst.

[0091] (2-1) A 60-mesh nickel mesh is used in the commercial alkaline electrolyzed water industrial equipment and placed in a tube furnace. In a stable atmosphere with a hydrogen:argon volume ratio of 1:10, it is kept at 400°C for 5 hours. After cooling to room temperature, a nickel mesh substrate with specific surface species is obtained;

[0092] (2-2) Prepare a reaction solution. Ferric chloride is dissolved i...

Embodiment 2

[0101] The metal nickel substrate was not modified by surface species, and the iron element was directly introduced to prepare the nickel-iron catalyst as a control example.

[0102] (1) Preparation of nickel-iron mesh anode catalyst.

[0103] (1-1) Prepare a reaction solution. Ferric chloride is dissolved in water and is configured as a transparent solution of 10 mmol / liter;

[0104] (1-2) Low temperature chemical bath. Immerse the 60-mesh nickel mesh used in the commercially available alkaline electrolyzed water industrial equipment in the stable reaction solution in step (1-1), and let the whole system stand at 50 degrees for 6 hours;

[0105] (1-3) Rinse the electrodes. Take out the nickel mesh after standing in (1-2), and fully wash it with a large amount of water, dry the electrode piece or dry it under natural conditions to obtain a nickel-iron mesh catalyst, which is designated as sample 2 # . Sample 2 was examined with a scanning electron microscope # Morphologi...

Embodiment 3

[0109] When iron was introduced to prepare the nickel-iron catalyst, the reaction temperature increased, as a comparative example.

[0110] (1) Preparation of nickel-iron mesh anode catalyst.

[0111] (1-1) A 60-mesh nickel mesh is used in the commercially available alkaline electrolyzed water industrial equipment, placed in a tube furnace, and kept at 400°C for 5 hours in a stable atmosphere with a hydrogen:argon volume ratio of 1:10. After cooling to room temperature, a nickel mesh substrate with specific surface species is obtained;

[0112] (1-2) Prepare a reaction solution. Ferric chloride is dissolved in water and is configured as a transparent solution of 10 mmol / liter;

[0113] (1-3) Low temperature chemical bath. Immerse the 60-mesh nickel mesh used in the commercially available alkaline electrolyzed water industrial equipment in the stable reaction solution in step (1-2), and let the whole system stand at 85 degrees for 6 hours;

[0114] (1-4) Rinse the electrode...

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Abstract

The invention discloses a ferronickel catalytic material and a preparation method thereof, and application of a ferronickel catalytic material in preparing hydrogen by electrolyzing water and preparation of liquid solar fuel. The material is prepared on a modified nickel substrate under mild conditions by using soluble iron salt as a raw material, and the ferronickel catalytic material which can be applied to the harsh conditions of industrial alkaline electrolyzed water is successfully prepared. The ferronickel catalytic material includes a nickel metal substrate and a catalytically active layer containing an iron element and a nickel element. The ferronickel catalyst is adopted to promote the water decomposition reaction, and the energy consumption required by preparing hydrogen per cubic meter by industrial alkaline electrolyzed water can be reduced from 4.4 kilowatt-hour to 4.01 kilowatt-hour, so that the conversion amount of solar energy to methanol is improved by 9.7 percent. Theferronickel catalytic material has the advantages of a simple preparation process, the low cost and easy implementation of industrial requirement amplification preparation. The process can convert solar energy into conventional fuel which is convenient to store and transport, provides a new way for solving the energy problem and the environmental problem, and has great economic benefit and socialbenefit.

Description

technical field [0001] The invention relates to the technical field of clean and renewable energy utilization, in particular to a nickel-iron catalytic material and its preparation method and application. Background technique [0002] With the excessive use of fossil resources, environmental pollution and the deterioration of the ecological environment have become increasingly serious, especially the emission of the greenhouse gas carbon dioxide has led to global climate change and frequent extreme weather, which directly threatens the ecological environment of the earth on which human beings depend. The clean utilization of renewable energy and carbon resources has been raised to an unprecedented height. [0003] Since methanol is produced by solar energy, solar energy is stored in methanol molecules in the form of chemical energy, so the methanol synthesized by converting carbon dioxide and water from solar energy is called solar fuel, and because methanol generally exists...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/90
CPCH01M4/9041Y02E60/50C25B1/04C25B15/081C25B11/061C25B11/091B01J23/755B01J23/745B01J35/0006B01J35/023B01J35/06B01J37/0215B01J37/0225B01J37/0226B01J37/18B01J37/08C25B11/054C07C29/1518H02S10/00
Inventor 李灿安秀瑞姚婷婷王集杰
Owner DALIAN INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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