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

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      https://www.ias.ac.in/article/fulltext/boms/038/07/1843-1850

    • Keywords

       

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

    • Abstract

       

      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.

    • Author Affiliations

       

      Amol S Pawar1 Shivram S Garje1

      1. Department of Chemistry, University of Mumbai, Vidyanagari, Santacruz (East), Mumbai 400 098, India
    • Dates

       
  • Bulletin of Materials Science | News

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