Abstract
Hexagonal Co9S8 nanocrystal and nanorods were synthesized using cobalt chloride (CoCl2·6H2O), dimethyl sulfoxide (DMSO) and non-aqueous alcohol as the starting materials, and taking dimethyl sulfoxide as both sulfur source and strong infiltrator in nanorods preparation. The Co9S8 samples were characterized by X-ray diffraction (XRD), scanning tunneling microscope (SEM), transmission electron microscope (TEM), vibrating sample magnetometer (VSM) and laser Raman spectrometer. The results show that the as-prepared Co9S8 nanocrystal with a size of 6 nm take on weak paramagnetism at room temperature. The lengths and diameters of the nanorods were about 4 μm and 200 nm, respectively. The reason for the relative lower synthesis temperature of nanorods was discussed and a ‘micro-autoclave reactor’ model was suggested as well.
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Yin, PF., Sun, LL., Gao, YL. et al. Preparation and characterization of Co9S8 nanocrystalline and nanorods. Bull Mater Sci 31, 593–596 (2008). https://doi.org/10.1007/s12034-008-0093-2
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DOI: https://doi.org/10.1007/s12034-008-0093-2