Abstract
The structural, morphological, magnetic, dielectric, and gas analyzing properties are studied in CuFe2O4(Mn–CuFe2O4) substituted spinel ferrite nanoparticles synthesized via evaporation and automatic combustion. The obtained nanoparticles are established to possess a spherical shape. The smallest size of Mn–CuFe2O4 (~9 nm) nanoparticles is achieved at using automatic combustion. X-ray diffraction and Mossbauer spectroscopy reveal that the crystal lattice constant and the Mn–CuFe2O4 nanoparticle size are larger at augmenting the annealing temperature from 600 to 900°С. The dielectric permeability and losses of Mn–CuFe2O4 nanoparticles are studied at various synthesis conditions and temperatures of annealing. Various aspects of gas sensibility of synthesized Mn–CuFe2O4 nanoparticles are tested, as well. The maximum response to the presence of liquefied petroleum gas is 0.28 at the optimum working temperature of 300°C for Mn–CuFe2O4 nanoparticles obtained via automatic combustion and it is 0.23 at 250°C for deposited nanoparticles.
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