Micron-spherical NiS2 catalyst, its preparation method and application

By using a eutectic solvent to synthesize micron-sized spherical NiS2 catalysts, the problems of complex and toxic compound generation in existing technologies have been solved, achieving simple, low-cost, and efficient catalyst preparation, and improving electrocatalytic performance and lifespan.

CN122406274APending Publication Date: 2026-07-17QILU INST OF TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-05-25
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing technologies for preparing transition metal sulfide catalysts suffer from complex processes, high costs, and the generation of toxic compounds, making it difficult to achieve industrial-scale production and sustainable development.

Method used

Micron-sized spherical NiS2 catalysts were synthesized using eutectic solvents (DESs) as solvents and soft templates through a simple heating and grinding method. The designability and environmental friendliness of DESs enabled the easy preparation and recycling of the catalysts.

Benefits of technology

The prepared micron-sized spherical NiS2 catalyst has a regular morphology, good crystallinity, high conductivity and structural stability, which significantly improves its electrocatalytic performance and long service life.

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Abstract

本发明涉及一种微米球状NiS2催化剂、其制备方法及应用，属于电催化材料及其制备技术领域。本发明所述微米球状NiS2催化剂的制备方法：提供氯化胆碱与乙二醇的混合物；将所述混合物进行第一次加热得到低共熔溶剂DESs；将DESs、升华硫和镍源混合，第二次加热形成均匀的溶液体系；将所得溶液体系进行溶剂热合成反应，得到所述微米球状NiS2催化剂。本发明所述的制备方法具有操作简便、成本低廉的优势，且制得的NiS2催化剂具有规整的形态和良好的结晶性。
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