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Novel sol–gel method for preparation of high concentration ε-Fe2O3/SiO2 nanocomposite

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Abstract

ε-Fe2O3/SiO2 nanocomposite was prepared by novel solgel method using single precursor for both nanoparticles and matrix. This method allows to prepare the samples free of α-Fe2O3 with 40% of Fe2O3 in SiO2. Nanoparticles of 12 nm diameter were obtained by annealing at 1,000 °C. The samples were characterized by powder X-ray diffraction and transmission electron microscopy. Mössbauer spectroscopy identified ε-Fe2O3 as the only magnetically ordered phase at room temperature. Magnetic measurements revealed progressive necking of hysteresis loops measured at 300 and 2 K. In both cases the intrinsic coercivity reaches only 0.25 T. Measurements up to 14 T shows monotonous decreasing trend of saturated magnetization with increasing temperature.

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References

  1. Jin J, Hashimoto K, Ohkoshi S (2005) J Mater Chem 15:1067–1071. doi:10.1039/b416554c

    Article  CAS  Google Scholar 

  2. Kurmoo M, Rehspringer J-L, Hutlová A, D’Orléans C, Vilminot S, Estournès C, Nižňanský D (2005) Chem Mater 17:1106–1114. doi:10.1021/cm0482838

    Article  CAS  Google Scholar 

  3. Gich M, Frontera C, Roig A, Fontcuberta J, Molins E, Bellido N, Simon C, Fleta C (2006) Nanotechnology 17:687–691. doi:10.1088/0957-4484/17/3/012

    Article  ADS  CAS  Google Scholar 

  4. Gich M, Frontera C, Roig A, Taboada E, Molins E, Rechenberg HR, Ardisson JD, Macedo WAA, Ritter C, Hardy V, Sort J, Skumryev V, Nogués J (2006) Chem Mater 18:3889–3897. doi:10.1021/cm060993l

    Article  CAS  Google Scholar 

  5. Forestier H, Guiot-Guillain G (1934) C R Acad Sci Paris 199:720

    CAS  Google Scholar 

  6. Schrader R, Büttner G (1963) Z Anorg Allg Chem 320:220. doi:10.1002/zaac.19633200503

    Article  CAS  Google Scholar 

  7. Walter-Lévy L, Quémeneur E (1963) C R Acad Sci Paris 257:3410

    Google Scholar 

  8. Trautmann JM, Forestier H (1965) C R Acad Sci Paris 261:4423

    CAS  Google Scholar 

  9. Dézsi I, Coey JMD (1973) Phys Status Solidi A 15:681. doi:10.1002/pssa.2210150239

    Article  Google Scholar 

  10. Nižňanský D, Rehspringer J-L, Drillon M (1994) IEEE Trans Magn 30:821–823. doi:10.1109/20.312420

    Article  ADS  Google Scholar 

  11. Chanéac C, Tronc E, Jolivet JP (1995) Nanostruct Mater 6:715–718. doi:10.1016/0965-9773(95)00158-1

    Article  Google Scholar 

  12. Viart N (1996) Doctoral Thesis, Univ. Strasbourg

  13. Hutlova A (2003) Doctoral Thesis, Univ. Strasbourg

  14. Jin J, Ohkoshi S, Hashimoto K (2004) Adv Mater 16:48–51. doi:10.1002/adma.200305297

    Article  CAS  Google Scholar 

  15. Kelm K, Mader W (2005) Z Anorg Allg Chem 631:2383–2389. doi:10.1002/zaac.200500283

    Article  CAS  Google Scholar 

  16. Zbořil R, Mashláň M, Petridis D (2002) Hyperfine Interact 139/140:597–606. doi:10.1023/A:1021226929237

    Article  Google Scholar 

  17. Platas-Iglesias C, Corsi DM, van der Elst L, Muller RN, Imbert D, Bunzli JCD, Toth E, Maschmeyer T, Peters JA (2003) Dalton Trans 4:727–737. doi:10.1039/b211060a

    Article  Google Scholar 

  18. Tronc E, Chanéac C, Jolivet JP (1998) J Solid State Chem 139:93–104. doi:10.1006/jssc.1998.7817

    Article  ADS  CAS  Google Scholar 

  19. Popovici M, Gich M, Nižňanský D, Roig A, Savii C, Casas L, Molins E, Závěta K, Enache C, Sort J, de Brion S, Chouteau G, Nogués J (2004) Chem Mater 16:5542–5548. doi:10.1021/cm048628m

    Article  CAS  Google Scholar 

  20. Ohkoshi S, Sakurai S, Jin J, Hashimoto K (2005) J Appl Phys 97:10K312

    Article  Google Scholar 

  21. Lee S-J, Jeong J-R, Shin S-C, Kim J-C, Kim J-D (2004) J Magn Magn Mater 282:147–150. doi:10.1016/j.jmmm.2004.04.035

    Article  ADS  CAS  Google Scholar 

Download references

Acknowledgments

This work was supported by the Czech Science Foundation (Grant No. 106/07/0949). J. P. V. thanks the Ministry of Education of the Czech Republic (research plan MSM0021620834).

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Authors and Affiliations

  1. Institute of Inorganic Chemistry of the ASCR, v. v. i, 250 68, Řež u Prahy, Czech Republic

    Petr Brázda

  2. Groupe des Matériaux Inorganiques, IPCMS Strasbourg, UMR 7504, CNRS/Université Louis Pasteur, 23 Rue du Loess BP 43, 67034, Strasbourg Cedex 2, France

    Petr Brázda & Jean-Luc Rehspringer

  3. Department of Inorganic Chemistry, Faculty of Science, Charles University of Prague, Hlavova 2030, 128 40, Prague 2, Czech Republic

    Daniel Nižňanský

  4. Joint Laboratory of Mössbauer Spectroscopy, Faculty of Mathematics and Physics, Charles University, 180 00, Prague 8, Czech Republic

    Daniel Nižňanský

  5. Department of Condensed Matter Physics, Faculty of Mathematics and Physics, Charles University, Ke Karlovu 5, 12116, Prague, Czech Republic

    Jana Poltierová Vejpravová

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  1. Petr Brázda
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  2. Daniel Nižňanský
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  3. Jean-Luc Rehspringer
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  4. Jana Poltierová Vejpravová
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Correspondence to Petr Brázda.

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Brázda, P., Nižňanský, D., Rehspringer, JL. et al. Novel sol–gel method for preparation of high concentration ε-Fe2O3/SiO2 nanocomposite. J Sol-Gel Sci Technol 51, 78–83 (2009). https://doi.org/10.1007/s10971-009-1941-2

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  • DOI: https://doi.org/10.1007/s10971-009-1941-2

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