Microwave combustion synthesis of zinc substituted nanocrystalline spinel cobalt ferrite: Structural and magnetic studies. (December 2015)

• Record Type: Journal Article
• Authors: Sundararajan, M.; Kennedy, L. John; Aruldoss, Udaya; Pasha, Sk. Khadeer; Vijaya, J. Judith; Dunn, Steve
• Is Part Of: Materials science in semiconductor processing. Volume 40(2015:Dec.)
• Page Start: 1
• Page End: 10
• Publication Date: 2015-12
• Subjects: Ferrite nanoparticles -- Microwave processing -- Optical property -- Stretching frequencies -- Magnetic property; Semiconductors -- Periodicals; Integrated circuits -- Materials -- Periodicals; Semiconducteurs -- Périodiques; Circuits intégrés -- Matériaux -- Périodiques; Electronic journals; 621.38152
• DOI: 10.1016/j.mssp.2015.06.002
• Languages: English
• ISSNs: 1369-8001

Abstract

Abstract: Zinc doped cobalt ferrite spinel nanoparticles were prepared by the microwave combustion method. All the samples were characterized by using X-ray diffraction technique (XRD), Scanning Electron Microscopy, energy dispersive X-ray analysis, UV–visible diffuse reflectance spectroscopy, Fourier transformed infrared (FT-IR) spectroscopy and vibrating sample magnetometry. The XRD patterns confirmed the formation of single phase CoFe2 O4 inverse spinel structure without impurities. The lattice parameter increased from 8.380 to 8.396 Å with increasing Zn 2+ fraction. The average crystallite sizes obtained by a Scherrer method varied between 46.22 nm and 30.79 nm. The estimated band gap energy values increases with an increasing zinc fraction (1.88–2.10 eV). The elemental composition of Zn, Co, and Fe was qualitatively obtained from energy dispersive X-ray (EDX) analysis.