Copper ferrite obtained by two “soft chemistry” routes

• Published in: Journal of alloys and compounds 2006-11, Vol.425 (1), p.357-361
• Main Authors: Gingaşu, Dana, Mîndru, Ioana, Patron, Luminita, Carp, Oana, Matei, Dorina, Neagoe, Cristian, Balint, Ioan
• Format: Article
• Language: English
• Subjects: Chemical synthesis; Chemical synthesis methods; Condensed matter: electronic structure, electrical, magnetic, and optical properties; Cross-disciplinary physics: materials science; rheology; Exact sciences and technology; Magnetic measurements; Magnetic properties and materials; Magnetic properties of nanostructures; Materials science; Methods of nanofabrication; Nanostructures; Physics; Thermal analysis; X-ray diffraction
• ISSN: 0925-8388; 1873-4669
• DOI: 10.1016/j.jallcom.2006.01.026

Nanoparticles of copper ferrites with tetragonal structure were obtained by two soft chemical methods: a complexation method and a self-propagating combustion. We demonstrated that in both these methods the precursors of copper ferrites were polynuclear coordination compounds. Three polynuclear coordination compounds with glycine as ligands: [Fe(III) 2Cu(II)(NH 2CH 2COO) 4(OH) 3](NO 3)·H 2O, [Fe(III) 2Cu(II)(NH 2CH 2COO) 6(NH 2CH 2COOH) 2](NO 3) 2 and [Fe(III) 2Cu(II)(NH 2CH 2COOH) 4.5](NO 3) 8·4H 2O were synthesized. The complex compounds were characterized by elemental chemical analysis and physico-chemical measurements (IR, UV–vis, magnetic measurements). The copper ferrites were investigated by XRD, IR spectra and magnetic measurements. The crystallite sizes of the copper ferrites were found in the range 18–29 nm.