Abstract
Oxygen evolution reaction (OER) during water splitting majorly based on the structure and nature of the electrocatalyst. Perovskite oxides (ABO(3)) have a flexible structure and range of physicochemical features that make them interesting for the present study. Therefore, scientists are interested in using electrocatalyst Perovskite oxides (ABO(3)) for OER. Nanostructures and amorphous patterns can appear when cations from the perovskite matrix are leached away from the A site. One of the most challenging problems is gaining enormous active amorphous subjects from cations in the B site rather than simply dissolving cations in the A site. In the present study, the crystalline perovskite (DyNiO3) has been fabricated, which is converted into an amorphous nanostructured comparative to NiO, and characterized via numerous analytical characterization methods to investigate the structural, morphological, and textural characteristics. The designed substance is then investigated for electrochemical characterizations to evaluate the overpotential, Tafel slope, and durability. Among all, DyNiO3 responses have a slight overpotential (eta) of 265 mV and a low Tafel slope of 78 mV/dec with greater durability of 49 h. The efficient outcomes of the DyNiO3 are because of the grater valence state of Ni3+ containing edge splitting octahedral-frameworks, which are bordering by interstitial deformed octahedral Dy3+ ion. This research improves perovskite oxides function as catalysts and can be applied to developing enhanced OER electrocatalysts and other energy applications in the near future.