Synthesis of Co9S8 and CoS nanocrystallites using Co(II) thiosemicarbazone complexes as single-source precursors

Bulletin of Materials Science

关键词: Cobalt sulphide;    single-source precursors;    pyrolysis and solvothermal decomposition.;   

学科分类：材料工程

来源: Indian Academy of Sciences

【 摘 要 】

Cubic Co9S8 and hexagonal CoS nanocrystallites were prepared by pyrolysis and solvothermal decomposition methods using Co(LH)2Cl2 and CoL2 (where LH = thiosemicarbazones of furfuraldehyde, cinnamaldehyde and 4-fluoro-acetophenone) as single-source precursors. These nanocrystallites were characterized by powder X-ray diffraction, scanning electron microscopy, transmission electron microscopy (TEM), selected area electron diffraction, UV–Vis, PL and Raman spectroscopic techniques. From TEM images, the average grain size of asprepared cobalt sulphide nanocrystallites was found to be 7–10 nm. Depending on experimental conditions, various morphologies such as spherical, pyramidal, hollow spheres, etc. are observed in the TEM images.

【 授权许可】

CC BY