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Cerium oxide has attained much attentions in global nanotechnology market due to valuable application for catalytic, fuel additive, and widely as electrolyte in solid oxide fuel cell. Doped cerium oxide has large oxygen vacancies that allow for greater reactivity and faster ion transport. These properties make cerium oxide suitable material for SOFCs application. Cerium oxide electrolyte requires lower operation temperature which shows improvement in processing and the fabrication technique. In our work, we synthesized magnesium doped cerium oxide by the co-precipitation method. With the magnesium doping catalytic reactivity of CeO2 was increased. Synthesized nanoparticle were characterized by the XRD and UV absorption techniques. [ABSTRACT FROM AUTHOR]

Magnetic, magnetocapacitance and dielectric properties of composite film of MnFe2O4-poly (vinylidenefluoride)-BaTiO3 are reported here for first time. The dielectric permittivity ([variant_greek_epsilon]′RT) was found to be ∼455 at 100 Hz. The maximum magnetization was observed ∼0.56 emu/g. The coercive field (Hc) and remnant magnetization (Mr) were found to be 88 Oe and 0.14 emu/g. Absolute value of the magnetocapacitance was found to be ∼ 0.54 % at 8 kOe. The observation of magnetodielectric properties in this novel film is the most conclusive experimental evidence of magnetoelectric coupling, which may be useful for device application as well as fascinating for fundamental physics. [ABSTRACT FROM AUTHOR]