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<p>The present study investigates the synthesis and characterization of nanocomposites of Nickel Oxide (NiO) and Polyaniline (PANI) using various analytical techniques, including ultraviolet-visible (UV-VIS) spectroscopy. photoluminescence (PL), Field Emission Scanning Electron Microscopy (FESEM) and energy dispersive X-ray spectroscopy (EDS) along with Thermal Gravimetric Analysis (TGA). Furthermore, the work estimates the variations in Young’s Modulus and dielectric constant of the composites with varying concentration of NiO in the composites. The nanocomposites were synthesized via an in-situ polymerization method, incorporating varying weight percentages of NiO nanoparticles into the Polyaniline matrix. The UV-Vis spectroscopy was conducted to probe the bandgap energy of the nanocomposites, revealed the π-π* transitions associated with the conjugated structure of polyaniline. PL spectra showed a red shift in wavelength with the addition of NiO nanoparticles, indicating increased conjugation length of PANI and altered energy states due to interactions with NiO. FESEM analysis revealed the consistent and even dispersion of NiO nanoparticles within the PANI matrix. EDS analysis indicates a corelation between the nickel weight% and increasing NiO concentration. Moreover, mechanical characterization through Young’s Modulus measurements indicated negligible modifications in stiffness of the composites. The dielectric constant increases with the addition of NiO, likely due to induced polarisation in the composites. Overall, the findings suggest that the incorporation of NiO nanoparticles into polyaniline enhances its conductivity and dielectric properties.</p>

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Multifaceted Characterization of Nickel Oxide-Polyaniline Nanocomposites to Study the Interactions Between Two Materials

  • 期刊论文

  • 发表日期：

    2025年7月7日

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  • Mukesh Kumar,
  • Akshita Thakur,
  • Sandeep Kaur,
  • Manju Sahni,
  • Tim Tim Mashangva,
  • Sangeeta Prasher

摘要

The present study investigates the synthesis and characterization of nanocomposites of Nickel Oxide (NiO) and Polyaniline (PANI) using various analytical techniques, including ultraviolet-visible (UV-VIS) spectroscopy. photoluminescence (PL), Field Emission Scanning Electron Microscopy (FESEM) and energy dispersive X-ray spectroscopy (EDS) along with Thermal Gravimetric Analysis (TGA). Furthermore, the work estimates the variations in Young’s Modulus and dielectric constant of the composites with varying concentration of NiO in the composites. The nanocomposites were synthesized via an in-situ polymerization method, incorporating varying weight percentages of NiO nanoparticles into the Polyaniline matrix. The UV-Vis spectroscopy was conducted to probe the bandgap energy of the nanocomposites, revealed the π-π* transitions associated with the conjugated structure of polyaniline. PL spectra showed a red shift in wavelength with the addition of NiO nanoparticles, indicating increased conjugation length of PANI and altered energy states due to interactions with NiO. FESEM analysis revealed the consistent and even dispersion of NiO nanoparticles within the PANI matrix. EDS analysis indicates a corelation between the nickel weight% and increasing NiO concentration. Moreover, mechanical characterization through Young’s Modulus measurements indicated negligible modifications in stiffness of the composites. The dielectric constant increases with the addition of NiO, likely due to induced polarisation in the composites. Overall, the findings suggest that the incorporation of NiO nanoparticles into polyaniline enhances its conductivity and dielectric properties.