ChemistrySelect, Journal Year: 2024, Volume and Issue: 9(40)
Published: Oct. 1, 2024
Abstract Water electrolysis plays a vital role in green energy systems and there is an absolute need for abundant, affordable, effective catalysts both the oxygen evolution reaction (OER) hydrogen (HER). Despite existing challenges, exploration of transition metal‐based electrocatalysts with superior performance alkaline water splitting critical advancing economy. This study focuses on electrocatalytic potentials FeS 2 , CoSe @CoSe hybrid nanocomposites response to increasing demand sustainable production. The prepared materials were synthesized hydrothermally characterized using X‐ray diffraction (XRD), photoelectron spectroscopy (XPS), energy‐dispersive (EDX), field emission scanning electron microscopy (FESEM), transmission (TEM) examine their structural properties, elemental composition, morphological features. Notably, F@C−B nanocomposite exhibited outstanding HER performance, requiring only 97 mV overpotential achieve current density 10 mA cm −2 . Similarly, F@C−C demonstrated impressive OER efficiency merely 302 at same density. involvement Volmer–Heyrovsky mechanism was confirmed through Tafel slope analysis, revealing improved surface‐active sites reduced charge transfer resistance nanocomposite. synergistic effects, displayed exceptional positioning it as promising candidate overall splitting. work introduces novel approach developing highly efficient cost‐effective electrocatalysts, offering viable alternative precious counterparts.
Language: Английский