Journal
BULLETIN OF MATERIALS SCIENCE
Volume 31, Issue 4, Pages 593-596Publisher
INDIAN ACAD SCIENCES
DOI: 10.1007/s12034-008-0093-2
Keywords
DMSO; nanostructures; annealing; infiltration
Categories
Funding
- National Natural Science Foundation of China [50572016]
- Natural Science Foundation of Jiangsu Province [BK2004076]
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Hexagonal Co9S8 nanocrystal and nanorods were synthesized using cobalt chloride (CoCl2 center dot 6H(2)O), 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 mu m 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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