Synthesis and characterization of neodymium nickelate powder produced from polymeric precursors

• Published in: Journal of alloys and compounds Vol. 344; no. 1; pp. 157 - 160
• Main Authors: Fernandes, J.D.G, Araújo Melo, D.M, Zinner, L.B, Salustiano, C.M, Silva, Z.R, Alves Júnior, C, da Costa, J.A.P, Longo, E
• Format: Journal Article
• Language: English
• Published: Lausanne Elsevier B.V 07.10.2002; Elsevier
• Subjects: Chemistry; Colloidal state and disperse state; Cross-disciplinary physics: materials science; rheology; Exact sciences and technology; General and physical chemistry; Materials science; Nanoscale materials and structures: fabrication and characterization; Nanostructure; Neodymium; Nickelates; Physics; Powders; Neodymium; Nickelates; Nanostructure; Lanthanide; Heat treatment; Electrical conductivity; Electrical properties; Perovskite type compound; Nanoparticle; Crystallization; Crystal chemistry; Neodymium oxides; Experimental study; X ray diffraction; Powder; Calcining; Characterization; Particle size distribution; Sol gel process; Sintering; Chemical preparation; Infrared spectrum; Surface area; Nanostructured materials; Nanocrystal; Nickel oxide
• ISSN: 0925-8388; 1873-4669
• DOI: 10.1016/S0925-8388(02)00357-2

Nanostructured materials with perovskite structure have been extensively studied in the last few years due to their potential for a variety of applications. In the present study NdNiO 3 was obtained from polymeric precursors, at a temperature of 800 °C applying various calcination times. The materials obtained were characterized by X-ray fluorescence, infrared spectroscopy, thermal analysis (TG and DTA), X-ray powder diffraction (XRD) and Brunauer–Emmett–Teller surface measurements. The results indicated the formation of single-phase powders with reduced crystallite sizes of ca. 12.988–20.459 nm for 6 and 40 h, respectively. The composition determined by X-ray fluorescence indicate that NdNiO 3 was formed. Electrical measurements were carried out in order to ascertain the parameters of the material quality obtained by this synthesis.