View More View Less
  • 1 School of Chemistry and Forensic Science, University of Technology Sydney, P.O. Box 123, Broadway, NSW, 2007, Australia
Restricted access

Cross Mark

Abstract

The synthesis for a series of ferrite (MIIFe2O4) and cobaltite (MIICo2O4) spinels was investigated where MII is Mg, Co, Ni, Cu or Zn. The ferrites were prepared at a calcination temperature of 800 °C; the cobaltites at 500 °C. TG–MS indicated that reduction of CoIII to CoII occurs at ca. 800 °C, hence, the lower calcination temperature. For both the ferrites and the cobaltites, the evolution of water and CO2 during the calcination suggests the presence of both species in the precipitates. The observed mass losses indicated that the precursor basic carbonate precipitates for the cobaltite synthesis were predominantly carbonate, while the precursor basic carbonate precipitates for ferrite synthesis were predominantly hydroxide in character. XRD data showed successful synthesis of the ferrites with minimal contamination from the parent oxides, while the cobaltites were observed to be predominantly of the spinel structure.

  • 1. Hyeon T . Chemical synthesis of magnetic nanoparticles. Chem Commun. 2003;(8):92734.

  • 2. Hirai, P, Sengupta, S. Spinel ferrites as catalysts: a study on catalytic effect of coprecipitated ferrites on hydrogen peroxide decomposition. Can J Chem. 1991;69:3336. .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 3. Konvička, T, Mošner, P, Šolc, Z. Investigation of the non-isothermal kinetics of the formation of ZnFe2O4 and ZnCr2O4. J Therm Anal Calorim. 2000;60: 2 629640. .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 4. Paike, VV, et al. Synthesis of spinel CoFe2O4 Via the co-precipitation method using tetraalkyl ammonium hydroxides as precipitating agents. J Am Ceram Soc. 2007;90: 9 30093012. .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 5. Klissurski, DG, Uzunova, EL. Synthesis of high-dispersity zinc cobaltite from coprecipitated hydroxycarbonate precursor. J Mater Sci Lett. 1990;9: 5 576579. .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 6. Klissurski, DG, Uzunova, EL. Synthesis of nickel cobaltite spinel from coprecipitated nickel-cobalt hydroxide carbonate. Chem Mater. 1991;3:10601063. .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 7. Zümreoglu-Karan, B, Yilmazer, E. Preparation of spinel-type cathode materials from carbonate/oxalate powder mixtures. A solid-state experiment for advanced undergraduate inorganic chemistry laboratory. J Chem Educ. 2000;77: 9 120 .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 8. Berger, P, et al. Preparation and properties of an aqueous ferrofluid. J Chem Educ. 1999;76: 7 943 .

  • 9. Suchow, L. A detailed, simple crystal field consideration of the normal spinel structure of Co3O4. J Chem Educ. 1976;53: 9 560 .

  • 10. Weller, MT. Inorganic materials chemistry. Oxford: Oxford University Press; 1994.

  • 11. Szczygiel, I, Winiarska, K. Low-temperature synthesis and characterization of the Mn–Zn ferrite. J Therm Anal Calorim. 2011;104:557583. .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 12. Bordeneuve, H, Rousset, A, Tenailleau, C, Guillemet-Fritsch, S. Cation distribution in manganese cobaltite spinels Co3-xMnxO4 (0≤x≤1) determined by thermal analysis. J Therm Anal Calorim. 2010;101:137142. .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 13. Pacurariu, C, et al. New synthesis methods of MgAl2O4 spinel. J Eur Ceram Soc. 2007;27: 2–3 707710. .

  • 14. Thang, PD, Rijnders, G, Blank, DHA. Spinel cobalt ferrite by complexometric synthesis. J Magnet Magnet Mater. 2005;295: 3 251256. .

  • 15. Gawas, UB, Verenkar, V/M/S, Mojumdar, SC. Synthesis and characterisation of Ni0.6Ni0.4Fe2O4 nano-particles obtained by autocatalytic thermal decomposition of carboxylato-hydrazinate complex. J Therm Anal Calorim. 2011;104:879883. .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 16. Gonsalves, LR, Mojumdar, SC, Verenkar, VMS. Synthesis of cobalt nickel ferrite nanoparticles via autocatalytic decomposition of the precursor. J Therm Anal Calorim. 2010;100:789792. .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 17. Waqas, H, Qureshi, AH. Influence of pH on nanosized Mn–Zn ferrite synthesized by sol–gel auto combustion process. J Therm Anal Calorim. 2009;98:355360. .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 18. Waqas, H, Qureshi, AH. Low temperature sintering study of nanosized Mn–Zn ferrites synthesized by sol–gel auto combustion process. J Therm Anal Calorim. 2010;100:529535. .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 19. Sen A , Pramanik P. Preparation of nano-sized calcium, magnesium & zinc chromite powder through metalo-organic precursor solutions. J Mater Synth Process. 2002;10(3):10711.

    • Search Google Scholar
    • Export Citation
  • 20. Šepelák, V, Heitjans, P, Becker, K. Nanoscale spinel ferrites prepared by mechanochemical route. J Therm Anal Calorim. 2007;90: 1 9397. .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 21. Turkin, AI, Drebushchak, VA. Synthesis and calorimetric investigation of stoichiometric Fe-spinels: MgFe2O4. J Cryst Growth. 2004;265: 1–2 165167. .

    • Crossref
    • Search Google Scholar
    • Export Citation
  • 22. Turkin, AI, et al. Low temperature heat capacity of magnesioferrite, MgFe2O4. J Therm Anal Calorim. 2008;92: 3 717721. .

All Time Past Year Past 30 Days
Abstract Views 28 28 3
Full Text Views 1 0 0
PDF Downloads 1 1 0