Method for synthesizing metastable-phase molybdenum disulfide based on eutectic solvent and water system

The preparation of mesolidated phase molybdenum disulfide by eutectic solvent and water system solves the problems of complex preparation methods and harsh conditions in the prior art, and realizes simple and low-cost high-quality molybdenum disulfide preparation, which is suitable for catalysis and energy storage fields.

CN119976967APending Publication Date: 2025-05-13BEIJING UNIV OF CHEM TECH
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Patent Information

Application Number
CN202510228772.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-02-28
Publication Date
2025-05-13

AI Technical Summary

Technical Problem

The prior art has problems such as complex methods, harsh conditions, low efficiency and poor environmental protection in the preparation of mesoporous molybdenum disulfide. In particular, the Top-Down method requires low boiling point organic solvents and harsh conditions, while the Bottom-Up method requires appropriate solvents.

Method used

The eutectic solvent and water system are used to form DES by adjusting the ratio of hydrogen bond donor and acceptor, mixing the molybdenum source and sulfur source, adding surfactant, and preparing the mesolidable phase molybdenum disulfide by hydrothermal, microwave or oil bath reaction, controlling the reaction conditions to obtain a high-quality sheet.

Benefits of technology

It realizes simple and low-cost preparation of mesoporous molybdenum disulfide, improves the purity and stability of the product, reduces dependence on precious metal catalysts, and is suitable for catalysis and energy storage fields.

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Abstract

The invention discloses a method for synthesizing metastable-phase molybdenum disulfide based on a deep eutectic solvent (DES) and a water system, and aims to provide a simple and low-cost method for synthesizing the metastable-phase molybdenum disulfide, and high-quality metastable-phase molybdenum disulfide can be prepared at lower input cost by optimizing reaction conditions and a reaction system. Compared with the traditional method, the process provided by the invention has mild reaction conditions, low raw material cost and simple operation steps, not only effectively reduces the production cost, but also improves the feasibility and repeatability of operation. According to the method, the morphology, the size and the dispersity of the metastable-phase molybdenum disulfide micro-nano sheet layer can be accurately regulated and controlled, and the performance stability of the product in different applications is ensured. By controlling the size and dispersion degree of the lamellas, the dependence on expensive noble metal (such as platinum) catalysts can be reduced to a certain extent, and a more economical and efficient alternative scheme is provided for the fields of catalysis, energy storage and the like.
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