Ruthenium-based catalyst, preparation method thereof and application of ruthenium-based catalyst in hydrogen production through water electrolysis

By developing a porous structure of ruthenium-based catalyst, the problem of difficult to take into account both the stability and activity of the catalyst in the prior art is solved, and efficient catalytic and low-cost application in electrolytic hydrogen production is achieved.

CN119307961APending Publication Date: 2025-01-14CHINA PETROLEUM & CHEMICAL CORP +1
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Patent Information

Application Number
CN202410938103.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Priority Date
2023-07-14
Filing Date
2024-07-12
Publication Date
2025-01-14

AI Technical Summary

Technical Problem

In the proton exchange membrane electrolysis hydrogen production technology, existing catalysts such as platinum carbon catalysts are costly, and the stability and catalytic activity of elemental ruthenium and ruthenium oxide are difficult to take into account under strong oxidation and strong acidic conditions, especially nanomaterials are prone to polymerization due to Inactivation of the nodule reduces activity.

Method used

A porous ruthenium-based catalyst composed of elemental ruthenium and ruthenium oxide was developed to form mesoporous or macroporous structures through specific preparation methods, combined with the morphology of nanosheets, improve mass transfer effect and conductivity, and inhibit coalescence inactivation.

Benefits of technology

A ruthenium-based catalyst with excellent catalytic activity and stability in electrolytic hydrogen production is achieved, reducing costs and showing good electrochemical properties and stability in industrial applications.

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Abstract

The invention relates to a ruthenium-based catalyst, a preparation method thereof and application of the ruthenium-based catalyst in water electrolysis hydrogen production, the ruthenium-based catalyst is a porous material, and the content of ruthenium element is 70% or above in percentage by mass; a characteristic peak of elemental ruthenium exists in an XRD spectrogram of the ruthenium-based catalyst. When the catalyst disclosed by the invention is used as a cathode catalyst or an anode catalyst in water electrolysis hydrogen production, the catalyst has good mass transfer effect and conductivity, excellent catalytic activity and excellent stability.
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Citation Information

Cited By

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