Role of Ruthenium in the Dielectric, Magnetic Properties of Nickel Ferrite (Ru-NiFeO) Nanoparticles and Their Application in Hydrogen Sensors.

In this work, Ru-doped nickel ferrites (NiFeO) were synthesized by a chemical co-precipitation method. Subsequently, they were annealed at different temperatures. The crystallinity of the samples was evaluated using X-ray diffraction and the morphology of the samples was investigated by scanning electron microscopy and transmission electron microscopy.