Palladium-copper catalyst and its preparation method and application

A catalyst, palladium-copper technology, applied in the field of palladium-copper catalyst and its preparation, can solve the problems of complex preparation methods and insufficient catalytic activity, and achieve the effects of simple steps, good industrial application prospects, and good catalytic activity

Active Publication Date: 2022-03-04
NORTHEAST GASOLINEEUM UNIV
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Problems solved by technology

[0003] The purpose of this application is to provide a palladium-copper catalyst and its preparation method and application, so as to solve the problems such as the catalytic activity of the existing supported copper-based catalyst is not high enough, and the preparation method is relatively complicated.

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  • Palladium-copper catalyst and its preparation method and application
  • Palladium-copper catalyst and its preparation method and application
  • Palladium-copper catalyst and its preparation method and application

Examples

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preparation example Construction

[0033] The embodiment of the present application provides a palladium-copper catalyst and a preparation method thereof. The preparation method of the palladium-copper catalyst comprises the following steps:

[0034] Preparation of palladium nanoparticles: dissolving palladium acetate in absolute ethanol, and constant temperature treatment at 0-20°C for 24-48 hours to obtain an absolute ethanol solution containing palladium nanoparticles;

[0035] Preparation of palladium-modified copper-based metal-organic framework: dissolving trimesic acid in the absolute ethanol solution containing palladium nanoparticles, adding copper nitrate aqueous solution, mixing evenly, and performing solvothermal reaction to obtain palladium-modified copper-based metal organic framework;

[0036] Calcination: Calcining the palladium-modified copper-based metal-organic framework in an inert gas atmosphere to obtain the palladium-copper catalyst supported by porous carbon.

[0037] The preparation me...

Embodiment 1

[0067] The present embodiment provides a kind of palladium-copper catalyst, and the preparation method of this palladium-copper catalyst comprises the following steps:

[0068] Preparation of palladium nanoparticles: dissolving 0.0085 mmol of palladium acetate in 10 mL of absolute ethanol, ultrasonic treatment at 0°C for 10 minutes, and then constant temperature treatment at 0°C for 48 hours to obtain an absolute ethanol solution containing palladium nanoparticles;

[0069] Preparation of palladium-modified copper-based metal-organic framework: Dissolve 1 mmol of trimesic acid in the above-mentioned absolute ethanol solution containing palladium nanoparticles, and sonicate at room temperature for 10 minutes; then weigh 1.7 mmol of copper nitrate trihydrate and dissolve it in 10 mL to remove A copper nitrate aqueous solution is formed in ionized water, and the copper nitrate aqueous solution is added to an anhydrous ethanol solution containing trimesic acid-containing palladium ...

Embodiment 2

[0073] The difference between this example and Example 1 is that in the step of preparing palladium nanoparticles, 0.017 mol of palladium acetate was weighed and dissolved in 10 mL of absolute ethanol.

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Abstract

The present application relates to the technical field of catalysts, in particular to a palladium-copper catalyst and its preparation method and application. The preparation method of the palladium-copper catalyst comprises the following steps: preparing palladium nanoparticles: dissolving palladium acetate in absolute ethanol, and performing constant temperature treatment at 0-20° C. for 24-48 hours to obtain an absolute ethanol solution containing palladium nanoparticles; Preparation of palladium-modified copper-based metal-organic framework: dissolving trimesic acid in the absolute ethanol solution containing palladium nanoparticles, adding copper nitrate aqueous solution, mixing evenly, and performing solvothermal reaction to obtain palladium-modified copper-based metal Organic framework; calcining: calcining the palladium-modified copper-based metal-organic framework in an inert gas atmosphere to obtain the palladium-copper catalyst supported by porous carbon. The preparation method can obtain a palladium-copper catalyst with good catalytic activity to furfural, and the preparation method has simple steps, does not need additional reducing agents, and has good industrial application prospects.

Description

technical field [0001] The present application relates to the technical field of catalysts, in particular to a palladium-copper catalyst and its preparation method and application. Background technique [0002] Catalytic hydrogenation of furfural to prepare furfuryl alcohol is an important chemical production process. At present, the catalysts used for hydrogenation of furfural are mainly supported copper-based catalysts. However, the catalytic activity of ordinary copper-based catalysts is average, so it is necessary to develop new catalysts to improve their ability to catalyze furfural. Not only that, when modifying the existing copper-based catalysts, the preparation method often requires complicated steps or must introduce a reducing agent, which limits the industrial application of copper-based catalysts to a certain extent. Contents of the invention [0003] The purpose of this application is to provide a palladium-copper catalyst and its preparation method and appl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/89B01J35/10C07D307/44
CPCB01J23/8926B01J35/10C07D307/44
Inventor 李翠勤李锋李佩郭丽君张志秋路世玉黄金张娇静
Owner NORTHEAST GASOLINEEUM UNIV
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