Energy & Fuels, Год журнала: 2024, Номер 38(8), С. 7344 - 7358

Опубликована: Март 29, 2024

In the past few years, there has been a notable upswing in excitement surrounding bifunctional materials, primarily due to their versatility accommodating energy storage and conversion needs. One class of materials that garnered considerable attention is strontium ferrite nanoparticles (NPs), which are known for remarkable electrochemical properties stemming from exceptional physical chemical characteristics. this study, we have synthesized novel, cost-effective, highly efficient composite electrode designed dual functionality supercapacitor (SC) oxygen evolution reaction (OER) applications alkaline environments. Herein, prepared SrFe2O4@g-C3N4 through coprecipitation pyrolysis method, resulting featuring porous g-C3N4 matrix (Sr) spinel structure. The were thoroughly characterized using techniques such as powder X-ray diffraction (XRD), energy-dispersive spectroscopy (EDS), transmission electron microscopy (TEM), photoelectron spectroscopy. exhibited outstanding pseudocapacitive behavior delivered specific capacitance 1055 F/g at current density 1 A/g. Remarkably, it displayed retention 93% even after 5000 galvanostatic charge–discharge (GCD) cycles. Furthermore, comparative assessments with bare SrFe2O4 or electrodes, superior stable electrocatalytic performance. It required minimal overpotentials (only 170 mV) achieve 10 mA cm–2 during OER. These results emphasize substantial potential Sr-based nanocomposites auspicious supercapacitors electrocatalysts.

Язык: Английский