Microwave-Assisted Synthesis of Fine Particle Oxides Employing Wet Redox Mixtures |
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| Authors: | Solomon Sundar Manoharan Swati Sigamani John Prasanna Manju Lata Rao Ranjan Kumar Sahu |
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| Affiliation: | Materials Chemistry Laboratory, Department of Chemistry, Indian Institute of Technology, Kanpur, 208 016, India |
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| Abstract: | Interaction of electromagnetic radiation with a physical mixture of metal nitrates and amides/hydrazides is observed to initiate high-temperature reactions, useful for realizing several high-temperature ceramic materials. A judicious choice of such redox mixtures undergoes exothermic reactions when they couple with microwave radiation. The coupling of electromagnetic radiation with metal salts and amides/hydrazides depends on the dielectric properties of the individual components in the reaction mixture. The approach has been used to prepare γ-Fe2O3, Fe3O4, MgCr2O4, α-CaCr2O4, and La0.7Ba0.3MnO3. |
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| Keywords: | microwaves synthesis oxides |
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