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<p>This study presents the synthesis of cerium vanadate (CeVO<sub>4</sub>) nanoparticle by microwave-assisted method and the formation of polyaniline/CeVO<sub>4</sub> (PANI/ CeVO<sub>4</sub>) nanocomposites via in-situ polymerization with CeVO<sub>4</sub> contents of 1 wt. %, 3 wt. %, and 5 wt. %. The characterization was done through X-ray diffraction (XRD), ultraviolet–visible spectroscopy (UV–Vis), Fourier-transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM) with energy dispersive X-ray spectroscopy (EDX), transmission electron microscopy (TEM) and thermogravimetric-differential thermal analysis (TGA). XRD confirmed the CeVO<sub>4</sub> nanoparticles are in crystalline phase and the structural integrity of the composites. FTIR analysis showed successful incorporation of CeVO<sub>4</sub> into the PANI matrix by revealing characteristic peaks for both materials. SEM images demonstrated uniform distribution of CeVO<sub>4</sub> within PANI. UV–Vis spectroscopy indicated that CeVO<sub>4</sub> nanoparticles affects the optical properties of PANI, which is important for electronic and optoelectronic applications. Tg–DTA confirmed CeVO<sub>4</sub> has high thermal stability. The 3 wt. % CeVO<sub>4</sub> nanocomposites demonstrated superior thermal stability and interaction with PANI compared to the 1 wt. % and 5 wt. % samples. This makes the 3 wt. % CeVO<sub>4</sub> nanocomposites especially promising for electronic, optoelectronic, and electrochemical applications due to their enhanced properties and stability.</p> Graphical Abstract <p></p>

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Investigation of CeVO4 content on the structural and thermal properties of PANI/CeVO4 nanocomposites

  • 期刊论文

  • 发表日期：

    2025年1月22日

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  • Abirami S.,
  • Kumar E.,
  • Vigneshwaran B.

摘要

This study presents the synthesis of cerium vanadate (CeVO4) nanoparticle by microwave-assisted method and the formation of polyaniline/CeVO4 (PANI/ CeVO4) nanocomposites via in-situ polymerization with CeVO4 contents of 1 wt. %, 3 wt. %, and 5 wt. %. The characterization was done through X-ray diffraction (XRD), ultraviolet–visible spectroscopy (UV–Vis), Fourier-transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM) with energy dispersive X-ray spectroscopy (EDX), transmission electron microscopy (TEM) and thermogravimetric-differential thermal analysis (TGA). XRD confirmed the CeVO4 nanoparticles are in crystalline phase and the structural integrity of the composites. FTIR analysis showed successful incorporation of CeVO4 into the PANI matrix by revealing characteristic peaks for both materials. SEM images demonstrated uniform distribution of CeVO4 within PANI. UV–Vis spectroscopy indicated that CeVO4 nanoparticles affects the optical properties of PANI, which is important for electronic and optoelectronic applications. Tg–DTA confirmed CeVO4 has high thermal stability. The 3 wt. % CeVO4 nanocomposites demonstrated superior thermal stability and interaction with PANI compared to the 1 wt. % and 5 wt. % samples. This makes the 3 wt. % CeVO4 nanocomposites especially promising for electronic, optoelectronic, and electrochemical applications due to their enhanced properties and stability.

Graphical Abstract