Structural and Electrical Property Studies of B-Site-Doped LaCrO3 Compound for Solid Oxide Fuel Cell Application

This work focuses on the detailed crystal structure and dielectric properties of LaCrO3 and Ni-doped LaCrO3 (LaCr(0.9)Ni0.O-10.1(3)) compounds. Both the samples were synthesized via the auto-combustion route. The orthorhombic crystal structure with Pbnm space group of both the synthesized samples was confirmed using X-ray diffraction measurements. The average crystallite size of LaCr(0.9)Ni0.(10.1)O(3 )compound is 52.71nm which was determined from the Debye Scherrer formula. In Ni-doped LaCrO(3)compound, the formation of Cr4+ ions at the octahedral sites affects the dielectric properties. Enhancement in AC conductivity in LaCr(0.9)Ni0.(10.1)O(3)compound is due to the hopping of charge carriers in the material.