Method for preparing self-coiled structure molybdenum disulfide / nitrogen-doped porous carbon composite material, product and application thereof

The self-assembled and hydrothermal reaction-formed molybdenum disulfide/nitrogen-doped porous carbon composite material solves the problems of expensive precious metal catalysts and low nitrogen doping concentration, achieving highly efficient electrocatalytic hydrogen production.

CN115613075BActive Publication Date: 2026-03-24SHANGHAI NAT ENG RES CENT FORNANOTECH
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Patent Information

Application Number
CN202211447043.5
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-11-18
Publication Date
2026-03-24
Estimated Expiration
2042-11-18

AI Technical Summary

Technical Problem

Existing precious metal catalysts Pt/C are expensive and have limited resources, and their recyclability needs to be improved. Meanwhile, nitrogen-doped porous carbon materials have low nitrogen atom doping concentrations, making it difficult to increase the concentration without damaging the porous carbon structure.

Method used

High-nitrogen-doped porous carbon materials were synthesized by inducing dicyandiamide molecules to undergo supramolecular self-assembly, and molybdenum disulfide sheets were coated on their surface. Subsequently, a self-heating curling treatment was performed to form a self-curling molybdenum disulfide/nitrogen-doped porous carbon composite material.

Benefits of technology

It enhances the electrocatalytic effect of nitrogen-doped graphene in the hydrogen evolution reaction (HER), provides more electron-rich properties which are beneficial for the adsorption of substances, and exhibits excellent electrochemical performance, making it suitable for large-scale production.

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Abstract

The application provides a preparation method of a self-coiled structure molybdenum disulfide / nitrogen-doped porous carbon composite material, a product and application, high-content nitrogen-doped porous carbon material is synthesized by inducing dicyandiamide molecules to undergo a supramolecular self-assembly process, and on this basis, a hydrothermal reaction is carried out to coat molybdenum sulfide sheet layer material on the surface, and finally, a self-heating coiling treatment is carried out to form a carbon-based electrocatalyst of the self-coiled structure molybdenum disulfide / nitrogen-doped porous carbon. Compared with a high specific surface area carbon-based catalyst, high doping concentration of nitrogen atoms can provide more electron-rich properties to facilitate the adsorption of substances, and the self-coiled carbon-based material can exhibit very excellent electrochemical performance, especially in the aspect of electrochemical hydrogen production. The preparation method is simple in operation, low in preparation cost and suitable for large-scale production.
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