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<p>Inorganic bimetallic oxide nanomaterials (BMONs) namely lithium cobalt oxide (LiCoO₂) and strontium cobalt oxide (SrCoO₃) exhibit remarkable electrochemical and thermal properties making them highly suitable for energy storage and catalytic applications. However, their performance can be further enhanced by incorporating in conductive polymers like polyaniline (PANI) to form advanced nanocomposites. Present study is focusing on the synthesis, characterization, thermal as well as electrochemical behaviour of PANI-LiCoO₂ and PANI-SrCoO₃ nanocomposites. LiCoO₂ and SrCoO₃ nanomaterials were synthesized using self-propagating combustion (SPC) method using polyvinyl alcohol (PVA) as a fuel. The bimetallic oxide dispersed PANI nanocomposites are synthesised through an in-situ polymerization process. Structural characterisation is carried out by X-ray diffraction (XRD) study, indicating crystalline nature of both bimetallic oxides as well as their PANI nanocomposites. Morphological and bonding study of the samples was characterised by scanning electron microscopy (SEM) and Fourier transform infrared (FT-IR) tools. SEM images revealed uniform dispersion of nanoparticles within the polymer network, contributing to enhanced interfacial interactions. FT-IR analysis verified the successful incorporation of PANI within the composite matrix with various bonding arrangements. Thermal stability of the prepared samples was studied by Thermogravimetric analysis (TGA) tool, which demonstrated that the nanocomposites exhibit improved thermal resistance compared to pure PANI. Electrochemical impedance studies of the samples were carried out to investigate electrochemical behaviour of the samples. This research provides valuable insights into the synergistic effects of inorganic nanomaterials and conductive polymers, paving the way for further advancements in functional nanocomposites.</p>

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Bimetallic oxide inorganic nanomaterials (LiCoO2 and SrCoO3) and its PANI nanocomposites: synthesis, characterisation, thermal and electrochemical study

  • 期刊论文

  • 发表日期：

    2026年6月15日

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  • Arunkumar Lagashetty,
  • D. Mounika,
  • K. K. Z. Rukhsar,
  • M. K. Raghavendra,
  • M. Rakheeb,
  • B. M. Roja,
  • J. Thipperudrappa,
  • Sangappa K. Ganiger

摘要

Inorganic bimetallic oxide nanomaterials (BMONs) namely lithium cobalt oxide (LiCoO₂) and strontium cobalt oxide (SrCoO₃) exhibit remarkable electrochemical and thermal properties making them highly suitable for energy storage and catalytic applications. However, their performance can be further enhanced by incorporating in conductive polymers like polyaniline (PANI) to form advanced nanocomposites. Present study is focusing on the synthesis, characterization, thermal as well as electrochemical behaviour of PANI-LiCoO₂ and PANI-SrCoO₃ nanocomposites. LiCoO₂ and SrCoO₃ nanomaterials were synthesized using self-propagating combustion (SPC) method using polyvinyl alcohol (PVA) as a fuel. The bimetallic oxide dispersed PANI nanocomposites are synthesised through an in-situ polymerization process. Structural characterisation is carried out by X-ray diffraction (XRD) study, indicating crystalline nature of both bimetallic oxides as well as their PANI nanocomposites. Morphological and bonding study of the samples was characterised by scanning electron microscopy (SEM) and Fourier transform infrared (FT-IR) tools. SEM images revealed uniform dispersion of nanoparticles within the polymer network, contributing to enhanced interfacial interactions. FT-IR analysis verified the successful incorporation of PANI within the composite matrix with various bonding arrangements. Thermal stability of the prepared samples was studied by Thermogravimetric analysis (TGA) tool, which demonstrated that the nanocomposites exhibit improved thermal resistance compared to pure PANI. Electrochemical impedance studies of the samples were carried out to investigate electrochemical behaviour of the samples. This research provides valuable insights into the synergistic effects of inorganic nanomaterials and conductive polymers, paving the way for further advancements in functional nanocomposites.