Advancing energy storage and producing potential with a single source driven semiconducting BaS3:Cs2S:La2S3 chalcogenide prepared via a sustainable mode

Abstract

To ensure energy sustainability amid today's urbanized world, electrochemical storage of energy is required. For the first time, a unique and energy-effective semiconductor BaS₃:Cs₂S:La₂S₃ composite chalcogenide combination has been synthesized utilizing a single source precursor method. This semiconductor has a 3.94 eV optical band gap and 18.93 nm median crystallite size. A functional group study indicated the presence of several bonds, particularly the metal sulfide connection. Particles appeared irregularly shaped and inclined to form sphere-like arrangements. The electrical charge-storing activity of BaS₃:Cs₂S:La₂S₃ was investigated by creating a nickel foam electrode and covering its surface with a slurry of the material. Cyclic voltammetry using 1 M KOH revealed that the electrode adorned with trichalcogenide had a high capability for charge retention, exhibiting a specific capacitance around 1093 F g⁻¹. This suggests that the electrode possesses a high potential for long-term energy preservation. This electrode has a lower series resistance (R_s) of 0.75 Ω and a particular power density of 11 033.79 W kg⁻¹. In electrocatalysis, the electrode produced an OER overpotential with Tafel slopes of 449 mV and 88 mV dec⁻¹, respectively. The overpotential and Tafel slope for the HER activity were 183 and 142 mV dec⁻¹, respectively.