@article{article_1707499, title={Performances of HTC@PbS Supercapacitor Electrode Structures}, journal={DCE Doğa Bilimleri Dergisi}, volume={6}, pages={35–42}, year={2025}, author={Munshid, Fatımah Talal Munshid and Meydaneri Tezel, Fatma}, keywords={Kurşun Sülfür, Hidrotermal Karbon, Enerji Depolama, Süperkapasitör Elektrot, Spesifik Kapasitans}, abstract={To mitigate adverse environmental and economic impacts and to reduce energy consumption, the development of innovative, affordable, and sustainable energy storage systems is crucial. Currently, rechargeable batteries and supercapacitors are recognized as the two leading energy storage solutions. The production of high-performance electrochemical energy storage systems relies heavily on electrochemically active materials. To enhance their electrochemical capabilities, it is essential to create porous structures featuring a high specific surface area and adjustable pore dimensions. In this study, hydrothermal carbon (HTC) doped lead sulfide (HTC@PbS) thin film supercapacitor electrode structures were fabricated on glass substrates at 100 °C using the spray method, with their properties varying depending on the number of sprays. Surface morphologies, compositional analyses, and crystal structures were characterized by FESEM, EDX mapping, and XRD, respectively. The specific capacitance (Cs) values for the 2- and 3-spray HTC@PbS thin film supercapacitor electrode structures were measured using the in-plane time-dependent I-V method, employing
a Keithley 2400 sourcemeter and a Keithley 2100/220 multimeter. Measurements were conducted in the potential range of -1.4 V to +0.2 V at scan rates of 5 mV/s, 10 mV/s, 25 mV/s, 50 mV/s, and 100 mV/s. For the 2- and 3-spray HTC@PbS thin film supercapacitor electrode structures, the amount of active mass coated was determined to be 0.0566 g and 0.0185 g, respectively. The specific capacitance values for the 2- and 3-spray samples, measured at a 5 mV/s scan rate, showed the highest values of 873 F/g and 919 F/g.}, number={1}, publisher={Karabük Üniversitesi}, organization={KARABÜK ÜNİVERSİTESİ BAP KOORDİNATÖRLÜĞÜ}