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<p>The perovskite, LaNiO<sub>3</sub>, was synthesised in nanocrystalline form through reverse micellar route by varying the surfactants (CTAB, Triton X-100, Tergitol). These oxides were calcined at different temperatures from 750 to 800&#xa0;°C. The structural and magnetic properties of LaNiO<sub>3</sub> was investigated by PXRD, FESEM-EDX, TEM. PXRD of all samples show pure phase of LaNiO<sub>3</sub> crystallizing in the rhombohedral system. The particle size of nanoparticles varies from 12 to 300&#xa0;nm with the variation in the microemulsion system used for synthesis. The magnetic susceptibility data shows antiferromagnetic behaviour with the possibility of weak ferromagnetic contribution at low temperatures. The band gap obtained from UV–Visible spectroscopy vary in the range of 2.82–3.08&#xa0;eV. The Mott–Schottky studies show that the all the samples of LaNiO<sub>3</sub> have a n-type behaviour.</p>

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Nanostructured LaNiO3 Synthesised Using Reverse Micellar Route and Study of Their Magnetic and Photoelectrochemical Properties

  • 期刊论文

  • 发表日期：

    2025年9月1日

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  • Kirandeep Bhagat,
  • Vaishali Sethi,
  • Kandalam V. Ramanujachary,
  • Samuel E. Lofland,
  • Ashok Kumar Ganguli

摘要

The perovskite, LaNiO3, was synthesised in nanocrystalline form through reverse micellar route by varying the surfactants (CTAB, Triton X-100, Tergitol). These oxides were calcined at different temperatures from 750 to 800 °C. The structural and magnetic properties of LaNiO3 was investigated by PXRD, FESEM-EDX, TEM. PXRD of all samples show pure phase of LaNiO3 crystallizing in the rhombohedral system. The particle size of nanoparticles varies from 12 to 300 nm with the variation in the microemulsion system used for synthesis. The magnetic susceptibility data shows antiferromagnetic behaviour with the possibility of weak ferromagnetic contribution at low temperatures. The band gap obtained from UV–Visible spectroscopy vary in the range of 2.82–3.08 eV. The Mott–Schottky studies show that the all the samples of LaNiO3 have a n-type behaviour.