Coprecipitation of oxalates: an easy and reproducible wet-chemistry synthesis route for transition metal ferrites (Articolo in rivista)

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  • Coprecipitation of oxalates: an easy and reproducible wet-chemistry synthesis route for transition metal ferrites (Articolo in rivista) (literal)
Anno
  • 2014-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1002/ejic.201301250 (literal)
Alternative label
  • Diodati S.; Nodari L.; Natile M. M.; Caneschi A.; de Julián Fernández C.; Hoffmann C.; Kaskel S.; Lieb A.; Di Noto V.; Mascotto S.; Saini R.; Gross S. (2014)
    Coprecipitation of oxalates: an easy and reproducible wet-chemistry synthesis route for transition metal ferrites
    in European journal of inorganic chemistry (Internet)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Diodati S.; Nodari L.; Natile M. M.; Caneschi A.; de Julián Fernández C.; Hoffmann C.; Kaskel S.; Lieb A.; Di Noto V.; Mascotto S.; Saini R.; Gross S. (literal)
Pagina inizio
  • 875 (literal)
Pagina fine
  • 887 (literal)
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  • http://onlinelibrary.wiley.com/doi/10.1002/ejic.201301250/abstract (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 5 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • 1,3,9,11,12 : Dipartimento di Scienze Chimiche, Università degli Studi di Padova, and INSTM, via Marzolo 1, 35131 Padova, Italy / 1,2,3,12 : Istituto per l'Energetica e le Interfasi CNR-IENI and INSTM, via Marzolo 1, 35131 Padova, Italy / 4,5 : Laboratory of Molecular Magnetism (LAMM), Dipartimento di Chimica e UdR INSTM di Firenze Polo Scientifico, Via della Lastruccia 3, 50019 Sesto Fiorentino, Italy / 5 : Istituto dei Materiali per l'Elettronica e il Magnetismo (CNR), Parco Area delle Scienze 37/A, 43124 Parma, Italy / 6,7 : Department of Inorganic Chemistry, Dresden University of Technology, Bergstrasse 66, 01069 Dresden, Germany 8 : Lehrstuhl für Technische Chemie, Otto-von-Guericke-Universität Magdeburg, Universitätsplatz 2, Gebäude 16, 39106 Magdeburg 10 : Dipartimento di Ingegneria dei Materiali e Tecnologie Industriali, Università degli Studi di Trento, Via Mesiano 77, 38123 Trento, Italy (literal)
Titolo
  • Coprecipitation of oxalates: an easy and reproducible wet-chemistry synthesis route for transition metal ferrites (literal)
Abstract
  • In this work, an easy, quick and reproducible wet-synthesis coprecipitation route starting from oxalate precursors was optimised to synthesise cobalt, nickel, zinc and magnesium spinel ferrites CoFe2O4, NiFe2O4, ZnFe2O4 and MgFe2O4, as well as the manganese perovskite ferrite MnFeO3. Crystalline purity and crystallite sizes ranging from 30 to 190 nm were investigated by means of powder X-Ray Diffraction (XRD) whilst uniform morphology of the particles was shown through Transmission Electron Microscopy (TEM). The chosen synthetic route afforded an excellent stoichiometric control over the products, as confirmed by combined X-Ray Photoelectron Spectroscopy (XPS) and Inductive Coupled Plasma - Atomic Emission Spectroscopy (ICP- AES) analyses. Site geometry, degree of inversion in the spinels and chemical environments in the ferrites were explored by Temperature Programmed Reduction (TPR) and Mössbauer spectroscopy. The thermal evolution of the compounds during calcination and the decomposition pattern of the oxalates were studied through Differential Scanning Calorimetry coupled with Thermogravimetric Analysis (DSC-TGA) as well as in situ Temperature-Programmed X-Ray Diffraction (TPXRD). Magnetic properties of these oxides, as well as the transition of the perovskite from paramagnetic to ferrimagnetic behaviour at low temperatures, were investigated by Superconducting Quantum Interferometer Magnetometry (SQUID). (literal)
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