TY  - JOUR
T1  - Performances of HTC@PbS Supercapacitor Electrode Structures
TT  - HTC@PbS Süperkapasitör Elektrot Yapıların Performansları
AU  - Meydaneri Tezel, Fatma
AU  - Munshid, Fatımah Talal Munshid
PY  - 2025
DA  - June
Y2  - 2025
JF  - DCE Doğa Bilimleri Dergisi
JO  - NSJ-ISI
PB  - Karabük Üniversitesi
WT  - DergiPark
SP  - 35
EP  - 42
VL  - 6
IS  - 1
LA  - en
AB  - 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, employinga 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.
KW  - Lead sulfide
KW  - Hydrothermal Carbon
KW  - Energy Storage
KW  - Supercapacitor Electrode
KW  - Specific Capacitance
N2  - Çevre ve ekonomi üzerindeki olumsuz etkileri en aza indirmek ve enerji tüketimini azaltmak amacıyla, gelişmiş, düşük maliyetli ve sürdürülebilir enerji depolama cihazları geliştirmek büyük önem taşımaktadır. Günümüzde süperkapasitörler ve şarj edilebilir bataryalar, iki ana umut vadeden enerji depolama çözümü olarak öne çıkmaktadır. Yüksek performanslı elektrokimyasal enerji depolama sistemleri üretmenin anahtarı, elektrokimyasal olarak aktif malzemelerdir. Elektrokimyasal performanslarını artırmakamacıyla, geniş spesifik yüzey alanına ve kontrol edilebilir gözenek boyutlarına sahip gözenekli yapılar tasarlamak gerekmektedir. Bu çalışmada, hidrotermal karbon (HTC) katkılı kurşun sülfür (HTC@PbS) ince film süperkapasitör elektrot yapıları, sprey yöntemiyle 100 °C'deki cam taban malzemeleri üzerine, sprey sayısına bağlı olarak üretilmiştir. Yüzey morfolojileri, bileşim analizleri ve kristal yapıları sırasıyla FESEM, EDX ve XRD ile karakterize edilmiştir. 2 puf ve 3 puf HTC@PbS ince film süperkapasitör elektrot yapılarının spesifik kapasitans (Cs) değerleri, Keithley 2400 sourcemeter ve 2100/220 Keithley multimetre kullanılarak, düzlemsel zamana bağlı I-V yöntemi ile -1,4 V ile +0,2 V potansiyel aralığında, 5 mV/s, 10 mV/s, 25 mV/s, 50 mV/s ve 100 mV/s tarama hızlarında ölçülmüştür. 2 puf ve 3 puf HTC@PbS ince film süperkapasitör elektrot yapılarında kaplanan aktif kütle miktarları sırasıyla 0,0566 g ve 0,0185 g olarak belirlenmiştir. 2 puf ve 3 puf sprey için 5 mV/s tarama hızında elde edilen spesifik kapasitans değerlerinin 873 F/g ve 919 F/g olarak en yüksek değerlere sahip olduğu görülmektedir.
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UR  - https://dergipark.org.tr/tr/pub/nsjisi/issue//1707499
L1  - https://dergipark.org.tr/tr/download/article-file/4907084
ER  -