Simple Synthesis of NdFeO₃ Nanoparticles By the Co-Precipitation Method Based on a Study of Thermal Behaviors of Fe (III) and Nd (III) Hydroxides

• Main Authors: Tien A. Nguyen, V. Pham, Thanh L. Pham, Linh T. Tr. Nguyen, I. Ya. Mittova, V. O. Mittova, Lan N. Vo, Bich Tram T. Nguyen, Vuong X. Bui, E. L. Viryutina
• Format: Article
• Language: English
• Published: MDPI AG 2020-03-01
• Series: Crystals
• Subjects: co-precipitation method; ndfeo₃; perovskite; crystal structure; magnetic property
• Online Access: https://www.mdpi.com/2073-4352/10/3/219
• ISSN: 2073-4352

In this study, a nanostructured NdFeO₃ material was synthesized via a simple process of the hydrolysis of Nd (III) and Fe (III) cations in hot water with 5% NaOH as a precipitating agent. According to the results of the thermal behaviors of each hydroxide, either containing Fe (III) or Nd (III), the perovskite type of neodymium orthoferrite NdFeO₃ was simply synthesized by annealing a mixture of Fe (III) and Nd (III) hydroxides at 750 &#176;C. The nanostructured NdFeO₃ was obtained in spherical granules with diameters of around 30 nm. The magnetic properties of the material were a coercive force (<i>H</i>_c) of 136.76 Oe, a remanent magnetization (<i>M</i>_r) of 0.68 emu&#183;g^&#8722;1, and a saturation magnetization (<i>M</i>_s) of 0.79 emu&#183;g^&#8722;1.