Abstract
To improve the stability of iron-sulfur clusters to air, an oil-soluble dialkyidithiophosphate (DDP) as a modifier, stabilizer, and coordination agent, was used to prepare highly stable iron-sulfur NPs in water-alcohol mixed solvents in this work. The morphology, surface composition, microstructure, stability and electrochemical properties of the as-prepared iron sulfure NPs were characterized by many techniques, such as Uv-vis, FT-IR, TEM, Raman, TG, and electrochemical analyzer. The results showed that DDP had been successfully covalently bonded onto iron sulfur NPs surface, and endowed the iron sulfur NPs with excellent oil-solubility, high stability, and good electrochemical performance. The stability test showed that the powders of iron sulfur NPs had excellent stability when exposed to oxygen. The electrochemical tests indicated that the iron sulfur NPs had excellent electrochemical reversibility. These findings suggest that the iron sulfur NPs prepared in this work has similar structure and electrochemical reversibility as the iron-slufur clusters in living organisms, and lays the foundation for its application in microelectronic devices and sensors.
Published Version
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