Supported cobalt-based quaternary catalyst as well as preparation method and application thereof

By doping W and P in the Co-B-based catalyst, a supported cobalt-based quaternary catalyst is formed, which solves the problems of slow hydrolysis reaction rate of sodium borohydride and high cost of precious metal catalysts, and achieves efficient and low-cost hydrogen production.

CN119702027AInactive Publication Date: 2025-03-28BEIJING UNIV OF CHEM TECH
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Patent Information

Application Number
CN202411922018.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-25
Publication Date
2025-03-28
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

In the prior art, sodium borohydride reacts with water to form hydrogen gas at a slow rate, and precious metal catalysts are costly and are not suitable for widespread applications.

Method used

By doping W and P on the basis of the Co-B-based catalyst, a supported cobalt-based quaternary catalyst is formed, and the synergistic effects of Co, W, B and P are used to improve the catalytic performance.

Benefits of technology

A highly efficient catalytic sodium borohydride hydrolysis reaction was achieved, with the hydrogen production rate reaching 400mL·cm-2·min-1, and the hydrogen production reached 100% of the theoretical value, and the cost of the catalyst was reduced.

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Abstract

The invention discloses a supported cobalt-based quaternary catalyst as well as a preparation method and application thereof, and belongs to the technical field of hydrogen production through hydrolysis of sodium borohydride. The supported cobalt-based quaternary catalyst is composed of a carrier material and Co, W, B and P which are jointly supported on the carrier material, and can be prepared through a simple chemical plating method. The structure of the supported cobalt-based quaternary catalyst provided by the invention is a rough and irregular aggregate, and the supported cobalt-based quaternary catalyst is large in specific surface area, high in catalytic performance and relatively high in catalytic activity on a hydrolysis reaction of sodium borohydride. The supported cobalt-based quaternary catalyst provided by the invention is simple in preparation method, low in cost and wide in raw material source.
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