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Title of Journal: J SolGel Sci Technol

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Abbravation: Journal of Sol-Gel Science and Technology

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Springer US

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1573-4846

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Characterization of nanostructured magnetite thin

Authors: Ali Erdem Eken Macit Ozenbas
Publish Date: 2009/04/17
Volume: 50, Issue: 3, Pages: 321-327
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Abstract

Nanocrystalline films of magnetite have been prepared by a novel sol–gel route in which a solution of iron III nitrate dissolved in ethylene glycol was applied on glass substrates by spin coating Coating solution showed Newtonian behaviour and viscosity was found as 00215 Pas Annealing temperature was selected between 291 and 350 °C by DTA analysis in order to obtain magnetite films Inplane grazing angle XRD and TEM studies showed that magnetite phase was present upon annealing the films at 300 °C The films had crack free surfaces and their thicknesses varied between ~10 and 200 nm UV–Vis spectrum results showed that transmittance of the films increases with decreasing annealing temperature and increasing spinning rate Up to 96 transmittance was observed between the wavelengths of 900–1100 nm Vibrating sample magnetometer measurements indicated that magnetite thin films showed ferromagnetic behavior and the saturation magnetization value was found as ~35 emu/cm3This work was supported by Middle East Technical University Research Fund through the project BAP200607020001 DTA viscosity AFM and FESEM measurements were conducted at the Central Laboratory of Middle East Technical University The authors would like to express their sincere thanks to Dr Suleyman Tari IYTE for VSM work and Dr Ozgur Duygulu TUBITAK for TEM work

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  4. Biosynthesis of silver nanoparticles using Lantana camara flower extract and its application
  5. Structure, photoluminescence and electrical properties of Eu–Nd codoped CaBi 4 Ti 4 O 15 synthesized by sol–gel method
  6. Influences of preferred orientation growth on electrical properties of ZnO:Al films by sol–gel method
  7. Synthesis of nanosized carbonated apatite by a modified Pechini method: hydroxyapatite nucleation from a polymeric matrix
  8. Effect of excess methanol addition on the morphology of sonogel-derived silica
  9. Removal of Pb(II) ions from aqueous systems using thiol-functionalized cobalt-ferrite magnetic nanoparticles
  10. Simple synthesis of Co 3 O 4 nanoflakes using a low temperature sol–gel method suitable for photodegradation of dyes
  11. The effect of PO 2,5 and AlO 1,5 additions on structural changes and crystallization behavior of SiO 2 -TiO 2 sol-gel derived glasses and thin films
  12. Antiwetting silica–gelatin nanohybrid and transparent nano coatings synthesised through an aqueous sol–gel process
  13. Comparison of structure and phase change characteristic of microencapsulated core/shell Al–Si alloy microparticles synthesized by two methods
  14. Bioencapsulation of living yeast ( Pichia pastoris ) with silica after transformation with lysozyme gene
  15. Optical properties of yellow-light-emitting LiZnVO 4 :Eu 3+ phosphor prepared by sol–gel method
  16. CuAl 2 O 4 powder synthesis by sol-gel method and its photodegradation property under visible light irradiation
  17. GPS patch antenna performance by modification of Zn (1−x) Ca x Al 2 O 4 -based microwave dielectric ceramics
  18. Effect of thermal annealing on Nd 2 O 3 -doped silica powder prepared by the solgel process
  19. Effect of sulphate groups on catalytic properties of chromium supported by zirconia in the n -hexane aromatization
  20. Synthesis of LiCoO 2 by l -apple acid assisted sol–gel method and its electrochemical behavior in aqueous lithium-ion battery
  21. Investigation of Br–N Co-doped TiO 2 photocatalysts: preparation and photocatalytic activities under visible light
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  23. Al 2 O 3 /TiO 2 core/shell powder derived by novel sol–gel routes
  24. A new surface modification method to improve the dispersity of nano-silica in organic solvents
  25. Synthesis of BiFeO 3 nanoparticles with small size
  26. Sustained release drug delivery using supramolecular hydrogels of the triblock copolymer PCL–PEG–PCL and α-cyclodextrin
  27. A novel lariat - silacrown ether based in sol–gel process: synthesis, characterization and interaction study with the copper(II) ion
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  30. The preparation and characterization graphene-cross-linked phenol–formaldehyde hybrid carbon xerogels
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  43. Physico-chemical properties of ambiently dried sodium silicate based aerogels catalyzed with various acids
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