Abstract
Currently, energy disasters and environmental contamination are of worldwide concern, and to replace the dependency on fossil fuels, it is required to use a different alternate energy resource. to confirm a green and sustainable future. In the current effort, simple Er-MOF and its nanocomposite (Er-MOF/Fe2O3) were manufactured through hydrothermal method which freshly produced on the conducting surface of NF (Nickle Foam) for OER (oxygen evolution reaction) in 1.0 M KOH electrolyte. The synthesized materials were determined through various analytical methods to study the structure, porosity and morphology by using X-ray Diffraction Analysis (XRD), Brunauer Emmet-Teller (BET) and Scanning Electron Microscopy (SEM), and studies, respectively. The water-splitting measurement of the fabricated composite material showed the outstanding oxygen activity for oxygen evolution reaction and observed lower overpotential of 216 mV to achieve a current density of 10 mA/cm2, a lower onset potential of 1.43 V through lower Tafel slope of 47 mV/dec. Hence, present effort may present a novel opportunity. avenue for OER.
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•Er-MOF and MOF/Fe2O3 was successfully synthesized by one pot hydrothermal method.•The fabricated nanocomposite (MOF/Fe2O3) have high BET surface area of 350.804 c m2/g.•MOF/Fe2O3 presented lower onset potential and overpotential for OER as compared to Fe2O3 and MOF electrocatalysts.•MOF/Fe2O3 shows low Tafel slope 40 mV/dec gives the outstanding way for electron transfer process.•The composite shows outstanding stability for about 25 h confirmed via chronoamperometry.