Preparation and application of MOF-supported bimetallic catalyst

A catalyst and bimetallic technology, which is applied in the field of preparation of MOF-supported bimetallic catalysts, can solve the problems of impaired stability, need to improve stability, and reduced activity, and achieve the effects of low stability, stable activity, and difficulty in agglomeration
CN110433864AActive Publication Date: 2019-11-12XIAMEN UNIV
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
XIAMEN UNIV
Publication Date
2019-11-12

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Abstract

The invention discloses preparation and application of an MOF-supported bimetallic catalyst, and belongs to the technical field of catalysts. The preparation method of the catalyst comprises the following steps: 1) firstly, dispersing an MOF carrier in a hydrophobic solvent, then dropwise adding an aqueous solution of a first metal salt, carrying out ultrasonic stirring, then drying a product, andfinally reducing the dried product to reduce first metal salt ions into first metal; and 2) dispersing the product reduced in the step 1) in an organic solvent, adding a second metal organic salt inan inert atmosphere, stirring the solution, separating the obtained product, and washing and drying the product to obtain the MOF supported bimetallic catalyst. The MOF supported bimetallic catalyst is applied to CO2 hydrogenation to prepare methanol. Compared with a traditional Cu / ZnO catalyst, the catalyst has the advantages that under the same catalytic condition, the selectivity to methanol ishigher than 80%, the conversion rate is high, and the stability is greatly improved.
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Description

technical field

[0001] The invention relates to the technical field of catalysts, in particular to the preparation and application of a MOF-supported bimetallic catalyst. Background technique

[0002] Methanol is an important basic chemical and high-quality fuel. Currently, the industrial methanol production route is mainly produced from coal or natural gas through synthesis gas (carbon monoxide and hydrogen). In recent years, as the greenhouse gas carbon dioxide has attracted people's attention, the development of carbon dioxide hydrogenation to methanol technology has attracted extensive attention from academic and industrial circles.

[0003] Bimetallic catalysts are the main type of catalysts currently used in the hydrogenation of carbon dioxide to produce methanol. They have high catalytic activity, low production costs and relatively simple preparation methods. Taking copper-zinc-based bimetallic catalysts as an example, the method used in the industrial production o...

Claims

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