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2008 | 113 | 1 | 577-581
Article title

Fe_2O_3/SiO_2 Hybrid Nanocomposites Studied Mainly by Mössbauer Spectroscopy

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EN
Abstracts
EN
Magnetic nanocomposites exhibit promising applications in many areas, for example optics, electronics, biology, medicine, etc. The main goal of this study was to synthesize magnetic ε-Fe_2O_3 nanoparticles embedded in amorphous SiO_2. These materials were prepared by the help of ultrasonic activation and subsequent annealing in nitrogen atmosphere or air with concentrations of iron oxide of about 20 and 30 wt.%. The structure and properties of the final product were analysed by the Mössbauer spectrometry as well as by X-ray diffraction, scanning electron microscopy, and high resolution transmission electron microscopy. They strongly depend on the initial conditions of preparation.
Keywords
EN
Contributors
author
  • Joint Lab. of Low Temp., Inst. of Phys. ASCR, v.v.i., IIC ASCR, v.v.i., MFF UK, Fac. of Nat. Sc, V Holešovičkách 2, 180 00 Prague, Czech Republic
  • Institute of Inorg. Chemistry ASCR, v.v.i., 250 68 Řežnear Prague, Czech Republic
author
  • Institute of Inorg. Chemistry ASCR, v.v.i., 250 68 Řežnear Prague, Czech Republic
  • Institute of Inorg. Chemistry ASCR, v.v.i., 250 68 Řežnear Prague, Czech Republic
author
  • Joint Lab. of Low Temp., Inst. of Phys. ASCR, v.v.i., IIC ASCR, v.v.i., MFF UK, Fac. of Nat. Sc., V Holešovičkách 2, 180 00 Prague, Czech Republic
  • Institute of Physics, ASCR, v.v.i., Na Slovance 2, 182 21 Prague, Czech Republic
  • Institute of Chemistry, Romanian Academy, 24 Mihai Viteazul Blvd., Timisoara 300223, Romania
author
  • Institute of Chemistry, Romanian Academy, 24 Mihai Viteazul Blvd., Timisoara 300223, Romania
References
  • 1. Ya-Juan Hao, Guo-Qiang Jin, Xiao-Dong Han, Xiang-Yun Guo, Mater. Lett. 60, 1334 (2006)
  • 2. Bong Kyun Oh, M.E. Robbins, B.J. Nablo, M.H. Schoenfisch, Biosensors Bioelectron. 21, 749 (2005)
  • 3. R.A. Brand, NORMOS PROGRAMS, Duisburg University, 1989
  • 4. A. Lančok, K. Závěta, C. Savii, K. Barčová, Czech. J. Phys. 56, E101 (2006)
Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv113n1141kz
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