Synthesis route and structural properties of nanoferrites
- 1. Institute of Catalysis, Bulgarian Academy of Sciences, Sofia (Bulgaria)
Description
The nano dimensional magnesium ferrite materials Mg0.25Fe2.75O4 , Mg0.5Fe2.5O4 and MgFe2O4 with different stoichiometry were prepared by co-precipitation procedure using MgCl2 •6H2O, FeCl2 •4H2O and FeCl3 •6H2O and NaOH as precipitant. The physicochemical methods - X-ray diffraction analysis, Moessbauer spectroscopy and FTIR spectroscopy were performed to investigate the structural properties of obtained nano size magnesium ferrite type samples. The registered experimental data were determined the presence of spinel ferrites and additional precursor phases as iron oxihydroxides and double layered hydroxides in ferrite materials MgxFe3-xO4 (x=0.5;1). In the case of magnesium ferrite sample MgxFe3-xO4 (x=0.25) the existence of non-stoichiometric spinel ferrite and intermediate phase - iron oxihydroxides were observed only. Key words: magnesium ferrites, co-precipitation, physicochemical methods
Availability note (English)
Available http://www.scientific-publications.net/download/materials-methods-and-technologies-2013-1.pdfAdditional details
Identifiers
Publishing Information
- Journal Title
- Materials, methods and technologies (CD-ROM)
- Journal Volume
- 7
- Journal Issue
- 1
- Journal Page Range
- p. 329-336
- ISSN
- 1313-2539
INIS
- Country of Publication
- Bulgaria
- Country of Input or Organization
- Bulgaria
- INIS RN
- 45107988
- Subject category
- S77: NANOSCIENCE AND NANOTECHNOLOGY;
- Descriptors DEI
- COPRECIPITATION; FERRITES; FOURIER TRANSFORMATION; INFRARED SPECTRA; IRON; IRON CHLORIDES; MAGNESIUM; MAGNESIUM CHLORIDES; MOESSBAUER EFFECT; SODIUM HYDROXIDES; SPINELS; STOICHIOMETRY; SYNTHESIS; X-RAY DIFFRACTION
- Descriptors DEC
- ALKALI METAL COMPOUNDS; ALKALINE EARTH METAL COMPOUNDS; ALKALINE EARTH METALS; CHLORIDES; CHLORINE COMPOUNDS; COHERENT SCATTERING; DIFFRACTION; ELEMENTS; FERRIMAGNETIC MATERIALS; HALIDES; HALOGEN COMPOUNDS; HYDROGEN COMPOUNDS; HYDROXIDES; INTEGRAL TRANSFORMATIONS; IODIDES; IODINE COMPOUNDS; IRON COMPOUNDS; IRON HALIDES; IRON IODIDES; MAGNESIUM COMPOUNDS; MAGNESIUM HALIDES; MAGNETIC MATERIALS; MATERIALS; METALS; MINERALS; OXIDE MINERALS; OXYGEN COMPOUNDS; PRECIPITATION; SCATTERING; SEPARATION PROCESSES; SODIUM COMPOUNDS; SPECTRA; TRANSFORMATIONS; TRANSITION ELEMENT COMPOUNDS; TRANSITION ELEMENTS
Optional Information
- Notes
- 19 refs., 3 figs., 1 tab.