6533b839fe1ef96bd12a5bd5
RESEARCH PRODUCT
Novel metallic iron/manganese-zinc ferrite nanocomposites prepared by microwave hydrothermal flash synthesis
T. CaillotD. StuergaG. Pourroysubject
Materials scienceInorganic chemistryOxideNanoparticlechemistry.chemical_element02 engineering and technologyZinc01 natural sciencesHydrothermal circulationMetalchemistry.chemical_compound0103 physical sciencesMaterials ChemistryHydrothermal synthesis010302 applied physicsMechanical EngineeringMetals and Alloys[CHIM.CATA]Chemical Sciences/Catalysis021001 nanoscience & nanotechnology[SDE.ES]Environmental Sciences/Environmental and SocietychemistryMechanics of Materialsvisual_artvisual_art.visual_art_mediumFerrite (magnet)Crystallite0210 nano-technologyNuclear chemistrydescription
8 Caillot, T. Pourroy, G. Stuerga, D.; Metallic iron (alpha-Fe)/manganese-zinc ferrite (Fe3-x-yMnxZnyO4) nanocomposites have been successfully synthesized for the first time using microwave hydrothermal treatment of alcoholic solutions of chloride precursors and sodium ethoxide. This new type of nanocomposites, never obtained by conventional synthesis, can now be produced in a short period (e.g. 15s). The powders were characterized by X-ray diffraction, transmission electron microscopy and magnetic properties were measured. In most cases, three classes of crystallites were observed; one of them is composed of grains of about 100 nm in size where the metal is inserted into the oxide. For all samples, 20% of metallic iron was routinely obtained using the microwave flash synthesis. Consequently, the microwave heating appears to provide an efficient source of energy in producing metallic iron nanoparticles protected against oxidation by an oxide matrix. (c) 2010 Elsevier B.V. All rights reserved.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2011-02-01 |