BaS₃:Sb₂S₃:GdS₂ Longitudinal Rods: Single‐Source Precursor Synthesis, Characterization, and Electrochemical Applications for Supercapacitance and Catalysis

Abstract

This study investigates a unique and energy‐efficient BaS3:Sb2S3:GdS2 nanocomposite chalcogenide system that was made using a single source dithiocarbamate precursor route. The produced dithiocarbamate metallic sulfide has an average crystallite size of 17.38 nm and a small band gap of 3.76 eV. An examination of functional groups revealed the existence of several linkages, including the metal sulfide bond. Morphologically, BaS3:Sb2S3:GdS2 appeared as elongated rods showing greater surface area for electrochemical activity. By constructing a nickel foam electrode and covering it with a slurry of BaS3:Sb2S3:GdS2, the electrochemical charge‐storing behavior of BaS3:Sb2S3:GdS2 was assessed. Prepared electrode exhibited auspicious electrical charge storage capacities with a specific capacitance reaching upto 633.32 F g−1. These findings suggest that there is a significant amount of potential for energy storage in the electrode. This electrode also exhibited a reduced series resistance of (Rs) = 0.31 Ω according to the impedance experiments, and a specific power density of 9109.16 W kg−1. In terms of electrocatalysis, the electrode produced oxygen production overpotential and corresponding Tafel slope of 334 mV and 366 mV dec−1, whereas the hydrogen production overpotential and Tafel slope were 229 mV and 175 mV dec−1, correspondingly.