Preparation method and application of iron-doped cobalt imidazolate hollow nano catalytic material

A technology of cobalt imidazolate nanometer and catalytic material, which is applied in chemical instruments and methods, physical/chemical process catalysts, organic compound/hydride/coordination complex catalysts, etc., can solve problems such as high cost, save time and The effect of large cost and storage capacity

Active Publication Date: 2021-06-01
QINGDAO UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] Aiming at the problem that the catalyst in the above-mentioned prior art needs to use noble metals to cause high cost, the present invention proposes a kind of iron-doped cobalt imidazolate hollow nanorod catalytic material, Due to the large amount of storage of transition metals and the low price and easy access, the raw materials for the synthesis of iron-cobalt nanomaterials are all made of mass-produced fine chemicals, which can save time and cost.

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  • Preparation method and application of iron-doped cobalt imidazolate hollow nano catalytic material
  • Preparation method and application of iron-doped cobalt imidazolate hollow nano catalytic material
  • Preparation method and application of iron-doped cobalt imidazolate hollow nano catalytic material

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preparation example Construction

[0035] like figure 1 As shown, the preparation method of the iron-doped cobalt imidazolate nanomaterial provided by the embodiments of the present invention comprises the following steps:

[0036] 1) Fully dissolve ferric nitrate and cobalt nitrate in a certain amount of organic solvent at 70°C, stir and dissolve to obtain solution 1; dissolve the organic ligand in a certain amount of organic solvent, and fully stir to obtain solution 2; Slowly pour one into solution two, add organic acid, and stir thoroughly to obtain a mixed solution.

[0037] 2) The resulting mixed solution is transferred to a stainless steel autoclave, and naturally cooled after being kept warm for a period of time;

[0038] 3) A brown product is obtained after centrifugation, and the brown product is washed with ethanol under ultrasonic treatment, and dried in a vacuum oven to obtain the above-mentioned nanomaterial.

[0039] The preparation method of the iron-doped cobalt imidazolate nanomaterial provi...

Embodiment 1

[0056] The preparation method of the iron-doped cobalt imidazolate nanomaterial provided by the embodiments of the present invention comprises the following steps:

[0057] Firstly, dissolve 0.066g of ferric nitrate and 0.218g of cobalt nitrate in 15mL of organic solvent, and fully stir to form solution 1. Dissolve 0.98g of organic ligand in 15mL of organic solvent and stir well to form solution 2. Slowly pour solution 1 into solution 2 to form a mixed solution, add 100 μL of organic acid, then stir the mixed solution rapidly at room temperature for 15 min, then transfer the mixture to a stainless steel autoclave, and put the autoclave into Keep it in an oven at 160°C for 12 hours; finally, after the temperature of the autoclave is cooled to room temperature, the mixture is centrifuged and washed to obtain a brown precipitate, which is ultrasonically dispersed and washed several times with absolute ethanol. It was collected by centrifugation and dried in a vacuum dryer for 6h...

Embodiment 2

[0059] The preparation method of the iron-doped cobalt imidazolate nanomaterial provided by the embodiments of the present invention comprises the following steps:

[0060] Firstly, 0.06g of ferric nitrate and 0.174g of cobalt nitrate were dissolved in 15mL of organic solvent, and fully stirred to form solution 1. Dissolve 0.98g of organic ligand in 15mL of organic solvent and stir well to form solution 2. Slowly pour solution 1 into solution 2 to form a mixed solution, add 100 μL of organic acid, then stir the mixed solution rapidly at room temperature for 15 min, then transfer the mixture to a stainless steel autoclave, and put the autoclave into Keep it in an oven at 160°C for 12 hours; finally, after the temperature of the autoclave is cooled to room temperature, the mixture is centrifuged and washed to obtain a brown precipitate, which is ultrasonically dispersed and washed several times with absolute ethanol. It was collected by centrifugation and dried in a vacuum drye...

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Abstract

The invention discloses a preparation method of an iron-doped cobalt imidazolate nano catalytic material, which comprises the following steps: fully dissolving a proper amount of cobalt nitrate, ferric nitrate, an organic ligand and an organic acid in an organic solvent, and fully conducting stirring at 70 DEG C to obtain a mixed reaction solution; 2) transferring the mixed reaction solution into a high-pressure reaction kettle, and preserving heat until the reaction is complete; and 3) after the high-pressure reaction kettle is cooled to room temperature, centrifugally conducting washing to obtain a brown precipitate, and purifying the brown precipitate to obtain the iron-doped cobalt imidazolate nano material.

Description

Technical areas: [0001] The present invention relates to the technical field of new material synthesis, specifically to the technical field of electrocatalytic water splitting, and in particular to a preparation method and application of an iron-doped cobalt imidazolate hollow nanorod catalytic material. Background technique: [0002] The continuous use of fossil fuels has caused many problems, such as energy crisis and environmental pollution. Therefore, there is an urgent need to develop sustainable clean energy alternatives, and hydrogen, as a clean energy source, is widely used in many fields. Currently, hydrogen is mainly produced through direct electrolysis of water, a green technology with low energy consumption, but the slow kinetics of the oxygen release reaction (OER) during water electrolysis hinders efficient water electrolysis. Precious metal catalyst IrO 2 and RuO 2 can effectively promote OER, but high price and low availability limit their wide-scale appli...

Claims

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Application Information

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IPC IPC(8): B01J31/22C25B11/091C25B1/04
CPCB01J31/1815B01J31/2239C25B1/04B01J2531/842B01J2531/845B01J35/33Y02E60/36
Inventor 林健健赵清云郑德华
Owner QINGDAO UNIV OF SCI & TECH
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