Magnetic and Pseudocapacitive Enhancement in Gd-Substituted NiFe 2 O 4

Key Points

• The research aims to explore how gadolinium substitution affects the structural and magnetic properties of nickel ferrite nanoparticles.
• Synthesis of Gd x NiFe 2-x O 4 nanoparticles via sol-gel auto-combustion method.
• Various gadolinium substitution levels (x = 0, 0.025, 0.075, 0.125, 0.175) were explored.
• Characterization of structural and magnetic properties was conducted.
• Gadolinium substitution enhanced the magnetic properties of nickel ferrite.
• The structural integrity of nanoparticles was maintained with increasing Gd content.
• Pseudocapacitance was improved with higher levels of Gd substitution.