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Synthesis of anisotropic CuS-based nanostructures by thermal oxidation

Journal of Thermal Analysis and Calorimetry, ISSN: 1588-2926, Vol: 138, Issue: 6, Page: 4321-4329
2019
  • 12
    Citations
  • 0
    Usage
  • 14
    Captures
  • 0
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    12
    • Citation Indexes
      12
  • Captures
    14

Article Description

Flower-like copper sulfides nanostructures were synthesized via the solvothermal route. The structural, optical and electrochemical properties of the synthesized materials were characterized by means of X-ray diffraction (XRD), scanning electron microscopy, ultraviolet–visible spectrometry and Fourier transform infrared spectroscopy (FTIR). Thermal behavior of the obtained flower-like materials was analyzed by TG, XRD and FTIR in situ measurements, over the temperature range of 25–800 °C. It was found that both shape and phase composition remain stable until the temperature reaches 200 °C. Phase transformation mechanism was discussed. During annealing, mixture of CuS and CuS is converted to copper sulfide hydroxides (200–500 °C) and further to CuO (700 °C and higher). Nevertheless, hierarchically porous structure is stable only to 200 °C. Applying higher temperatures affects the solubility of the material and inflicts structural damage, resulting in the formation of dense oval particles with size of 20 to 200 nm.

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