Nanoscale Defect Modulation in Zn 1-x Ni x Fe 2 O 4 Spinel Nanoparticles: Hydrodynamic Agglomeration, Mesoporosity, and Coupled Magnetic and Electrochemical Responses
This study demonstrates that low-concentration nickel doping (specifically at x = 0.03) in ZnNiFe2O4 spinel nanoparticles induces a critical defect-rich mesoporous structure that simultaneously maximizes grain-boundary scattering to enhance magnetic coercivity and optimizes electrochemical charge storage, establishing a narrow compositional threshold for co-tuning multifunctional properties.