Browsing by Author "Al-Qasmi, Noha"

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    NiO and magnetic CuFe2O4-based composite electrocatalyst for enhanced oxygen evolution reaction
    (Springer Science and Business Media Deutschland GmbH, 2023-09-13T00:00:00) BaQais, Amal; Shariq, Mohammad; Almutib, Eman; Al-Qasmi, Noha; Azooz, R.E.; Ali, Syed Kashif; Hassan, K.F.; Iqbal, Muzahir
    The biggest concerns confronting the modern world are the depletion of nonrenewable energy sources and rising global temperatures. The use of O2 as an alternative energy source offers a potential answer to these problems. Low-cost electrocatalysts are growing approach for electrocatalytic water splitting, such as oxygen evolution reaction (OER). Oxygen evolution reactions are tremendously well-catalyzed by inexpensive transition metal oxide-based nanostructures. Here, we present a new composite NiO/CuFe2O4 nanostructure and further investigate its potential for electrocatalytic OER applications. Microscopic and spectroscopic methods such as FE-SEM, XRD, XPS, and FTIR were utilized to explore the morphology and structural characteristics of the electrocatalyst. The composite NiO/CuFe2O4 catalyst demonstrates excellent electrochemical OER accomplishment with the overpotential of 297�mV for an alkaline medium to acquire the current density of 10�mA/cm2 and a low Tafel slope of 63�mV/dec?1 to confirm the faster reaction of the composite catalyst. The synergism between the metal ions Ni, Cu, and Fe makes the composite catalyst more efficient in its catalytic activity so; the as-prepared structure demonstrates higher electrocatalytic OER execution with cyclic stability and durability than its pristine constituents. The results show that the NiO/CuFe2O4 composite has the potential to act as an electrocatalyst for the splitting of water. � 2023, The Author(s), under exclusive licence to Societ� Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature.