Solventless synthesis and characterization of α-Fe, γ-Fe, magnetite and hematite using iron(III)citrate
Autor: | Anubha Dey, Ashis Bhattacharjee, Maciej Zubko, V. Raghavendra Reddy, Alok Banerjee, Joachim Kusz |
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Rok vydání: | 2019 |
Předmět: |
Materials science
Magnetic structure Thermal decomposition Iron oxide 02 engineering and technology General Chemistry Hematite 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences 0104 chemical sciences law.invention Thermogravimetry SQUID chemistry.chemical_compound chemistry law visual_art Mössbauer spectroscopy visual_art.visual_art_medium General Materials Science 0210 nano-technology Magnetite Nuclear chemistry |
Zdroj: | Solid State Sciences. 95:105932 |
ISSN: | 1293-2558 |
Popis: | The paper presents a method to synthesize α-Fe, γ-Fe, magnetite and hematite through solventless thermal decomposition technique using an organo-metallic compound iron(III)citrate in two different atmospheres (N2 and O2) at different temperatures and the characteristics of these products. The solid state thermal reaction has been monitored by non-isothermal thermogravimetry. The FT-IR spectra and powder XRD pattern of the decomposed products reveal the type of materials formed and the SQUID measurements confirm those. Mossbauer spectroscopic study confirms the nature of magnetic structure of the synthesized materials. The SEM and TEM studies are used to study the shape and size of the particles formed. EDX technique has been employed to know the elemental composition. The solid state reaction processes involved in the synthesis have been proposed. The present study indicates that different types of iron/iron oxide particles in the range of nano-scale can be synthesized on thermal decomposition of iron(III)citrate depending on the decomposition temperature as well as the reaction atmosphere. |
Databáze: | OpenAIRE |
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