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Iron alkoxide oxygen evolution catalyst based on deep eutectic solvent, preparation method and application of electrocatalytic oxygen evolution

A technology of deep eutectic solvent and oxygen catalyst, which is applied in chemical instruments and methods, physical/chemical process catalysts, organic compounds/hydrides/coordination complex catalysts, etc., can solve the problem of less research and preparation of iron-based oxygen evolution catalysts Technical complexity and other issues, to achieve the effect of excellent oxygen evolution catalytic performance, cheap and easy to obtain raw materials, and low price

Inactive Publication Date: 2019-12-24
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Aiming at the problems of less research on existing iron-based oxygen evolution catalysts and relatively complicated preparation technology, the present invention provides an iron alkoxide oxygen evolution catalyst based on a deep eutectic solvent and a preparation method thereof

Method used

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  • Iron alkoxide oxygen evolution catalyst based on deep eutectic solvent, preparation method and application of electrocatalytic oxygen evolution
  • Iron alkoxide oxygen evolution catalyst based on deep eutectic solvent, preparation method and application of electrocatalytic oxygen evolution
  • Iron alkoxide oxygen evolution catalyst based on deep eutectic solvent, preparation method and application of electrocatalytic oxygen evolution

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Embodiment 1

[0032] A preparation method of an iron alkoxide oxygen evolution catalyst based on a deep eutectic solvent, comprising steps:

[0033] Choline chloride and glycerol were mixed at a molar ratio of 1:2, and then treated in an oil bath at 80°C for 30 minutes to obtain a colorless transparent solution, which was cooled to room temperature, and the deep eutectic solvent was successfully synthesized.

[0034] Dissolve 121.2mg of ferric nitrate nonahydrate in 3mL of the above-mentioned deep eutectic solvent, then place it in a closed reaction kettle, and conduct an ionothermal reaction at 150°C for 11h; after the reaction is completed, cool to room temperature, centrifuge, wash with absolute ethanol 4 times, and then Put the product in a vacuum oven and dry at room temperature for 12 hours to obtain a yellow-green solid powder.

[0035] The infrared spectrogram of the iron alkoxide oxygen evolution catalyst prepared in this embodiment is as follows figure 1 shown. Depend on figure...

Embodiment 2

[0046] A preparation method of an iron alkoxide oxygen evolution catalyst based on a deep eutectic solvent, comprising steps:

[0047] Choline chloride and glycerol were mixed at a molar ratio of 1:2, and then treated in an oil bath at 50°C for 1 h to obtain a colorless transparent solution, which was cooled to room temperature, and the deep eutectic solvent was successfully synthesized.

[0048] Dissolve 105 mg of ferric nitrate nonahydrate in 3 mL of the above-mentioned deep eutectic solvent, then place it in a closed reaction vessel, and conduct an ionothermal reaction at 120°C for 15 hours; after the reaction is completed, cool to room temperature, centrifuge, and wash 4 times with absolute ethanol, and then put The product was placed in a vacuum oven and dried at room temperature for 12 hours to obtain a yellow-green solid powder.

Embodiment 3

[0050] A preparation method of an iron alkoxide oxygen evolution catalyst based on a deep eutectic solvent, comprising steps:

[0051] Choline chloride and glycerin were mixed at a molar ratio of 1:2, and then treated in an oil bath at 120°C for 10 minutes to obtain a colorless transparent solution, which was cooled to room temperature, and the deep eutectic solvent was successfully synthesized.

[0052] Dissolve 135mg of ferric nitrate nonahydrate in 3mL of the above-mentioned deep eutectic solvent, then place it in a closed reaction kettle, and conduct an ionothermal reaction at 180°C for 8h; after the reaction is completed, cool to room temperature, centrifuge, wash with absolute ethanol for 4 times, and then put The product was placed in a vacuum oven and dried at room temperature for 12 hours to obtain a yellow-green solid powder.

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Abstract

The invention provides a eutectic solvent based ferrite oxygen evolution catalyst, a preparation method and an electrocatalytic oxygen evolution application of the eutectic solvent based ferrite oxygen evolution catalyst. The preparation method for the catalyst, provided by the invention, comprises the steps: mixing choline chloride and propanetriol, and carrying out heating for 10min to 1h at thetemperature of 50 DEG C to 120 DEG C, so as to obtain a eutectic solvent; and dissolving a ferrum source in the eutectic solvent, and carrying out an ionic thermal reaction, thereby obtaining the ferrite oxygen evolution catalyst. The ferrite oxygen evolution catalyst prepared by the method is novel and unique in microscopic morphology, is of nano burs with graded structures and has excellent oxygen evolution catalysis performance; and ferrite is prepared by using the eutectic solvent, raw materials are cheap and readily available, the process is simple, the operation is simple and convenient, and thus, the method is beneficial to large-scale industrial production.

Description

technical field [0001] The invention relates to an iron alkoxide oxygen evolution catalyst based on a deep eutectic solvent, a preparation method and an electrocatalytic oxygen evolution application thereof, belonging to the technical field of energy materials. Background technique [0002] At present, the excessive use of traditional energy represented by oil and coal has caused extremely serious environmental pollution, and is also facing the risk of energy depletion. Environmental pollution, energy shortage and other issues have attracted more and more attention. To this end, green energy needs to be developed to meet human needs and reduce environmental pollution. Among them, hydrogen energy has the advantages of cleanliness and high efficiency, and electrocatalytic water splitting is one of the important methods for hydrogen production. The electrocatalytic water splitting process includes hydrogen evolution reaction and oxygen evolution reaction, and the required theo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25B11/06C25B1/04B01J31/02
CPCY02E60/36
Inventor 李钟号张晨韵
Owner SHANDONG UNIV
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