fe(iii) doped tio2 nanoparticles prepared by planetary ball mill on ni foam as efficient and novel electrocatalyst for oxygen generation

Clean and renewable energy has gotten a lot of attention as a result of the growth of societies and the demand for more energy. water splitting was one of these alternate energy sources. because the oxidation of water is a delayed reaction, it's critical to use high-efficiency, low-cost electrocatalysts in the process [1-2]. this work presents the synthesis of fe(iii) tio2 by the planetary ball mill method. tio2 nanoparticles as anatase phase were synthesized using a solvothermal method and doped with fe (iii) by mechanochemical planetary ball mill method. the use of fe(iii) tio2 in a 3d porous nickel foam substrate, in which this conductive substrate can improve the electrocatalytic activity of the catalyst, electron transfer rate, and surface area. nickel foam also, the intelligent network structure substrate and conductive, provides the ideal electron path as the electrode affordable. the fe(iii)tio2/nf nano sensor demonstrates excellent stability and durability in aqueous environments, which makes it a very active, stable, low-cost, and promising catalytic system in the field of energy analysis, conversion, and storage. for structural and chemical characterization of the as-synthesized nanoparticles, techniques such as x-ray diffraction (xrd), energy dispersive x-ray (edx), and transmission electron microscopy (tem) were employed. xrd proved that the nanoparticles, after doping, consist of a mixture of anatase and brookite phases. the catalytic efficiency of oer was studied by linear sweep voltammetry (lsv), cyclic voltammetry (cv), and chronoamperometry (ca) techniques. the electrolysis of water using fe(iii)tio2/nf with a current density of 10 ma cm_2 can be achieved by a cell voltage of 1.35 (vs. rhe) volts in a solution of 0.1 m koh. the catalyst synthesized to reach 10 ma cm-2 in oxygen evolution reaction only has 124 mv overpotentials.