Hierarchical porous metal-based catalysts, methods of making and using the same

By simplifying the preparation process to construct a multi-level porous metal-based catalyst, the problems of decreased activity and insufficient selectivity of the catalyst in the carbon dioxide hydrogenation to methanol reaction were solved, achieving efficient CO2 conversion and methanol selectivity, which is suitable for industrial production.

CN122377474APending Publication Date: 2026-07-14SHANGHAI RES INST OF CHEM IND CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANGHAI RES INST OF CHEM IND CO LTD
Filing Date
2026-02-26
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Existing catalysts suffer from reduced catalytic activity, poor product selectivity, and insufficient stability in the hydrogenation of carbon dioxide to methanol. The existing preparation process is complex and unsuitable for industrial production.

Method used

A metal-based catalyst with a hierarchical porous structure is developed by introducing a hard template agent to construct macropores, utilizing a metal precursor to form mesopores, and adding a micropore building agent to synergistically regulate the pore structure, simplify the preparation process, and improve mass transfer efficiency and confined contact of active centers.

Benefits of technology

This catalyst exhibits high reactivity, high methanol selectivity, and excellent stability, making it suitable for large-scale industrial production and significantly improving CO2 conversion and product selectivity.

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Abstract

The application provides a multi-level hole metal-based catalyst and a preparation method and application thereof, and the catalyst comprises an active metal main component, a first auxiliary component and a second auxiliary component; the catalyst simultaneously has a macroporous structure, a mesoporous structure and a microporous structure. Through the method of the application, the catalyst with the macroporous structure, the mesoporous structure and the microporous structure can be synthesized in a simple step, and the catalyst can exhibit excellent raw material conversion rate, product selectivity and catalyst stability in a reaction of synthesizing methanol by carbon dioxide hydrogenation.
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