Abstract
We investigated the magnetic characteristics of Gadolinium-doped Iron-Cobalt/Copper (Gd-Fe-Co/Cu) electrodeposited thin films at various Gd concentrations over 20 min at room temperature and pH 3. The structure and composition of metal ions are confirmed by X-ray diffraction and the EDAX spectrum. SEM examination of the microstructures revealed a variety of morphologies, including spherical ball-like crystallites and one-dimensional spike-like crystallites. The varied Gd ion concentrations had an effect on the Gd-Fe-Co/Cu thin films, which exhibited soft magnetic properties. The introduction of Gd3+ into the system has demonstrated ferromagnetic properties at room temperature, as verified through VSM analysis. Elevating the Gd concentration in the thin film led to an augmentation in saturation magnetization and a reduction in coercivity. Selected samples were subjected to BET and CV studies. CV studies confirmed the capacitive behaviours of the sample. The best magnetic behaviour was seen for the Gd concentration of 0.05 M, suggesting that these films might be suitable candidates for application in energy storage and conversion. Further, the best sample was taken for water splitting studies and showcased excellent HER performance under magnetic field.
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