Trabelsi Amira Ben Gouider, Essam Doaa, H Alkallas Fatemah, M Ahmed Ashour, Rabia Mohamed
Department of Physics, College of Science, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia.
Nanophotonics and Applications Lab, Physics Department, Faculty of Science, Beni-Suef University, Beni-Suef 62514, Egypt.
Micromachines (Basel). 2022 Dec 2;13(12):2134. doi: 10.3390/mi13122134.
Graphitic carbon nitride (G-C3N4) and NiS-NiO/G-C3N4 nanocomposite have been synthesized via combustion and hydrothermal techniques, respectively. The chemical and morphological properties of these materials were confirmed using different analytical methods. SEM confirms the formation of G-C3N4 sheets containing additional petal-like shapes of NiS-NiO nanoparticles. The electrochemical testing of NiS-NiO/G-C3N4 symmetric supercapacitors is carried out from 0.6 M HCl electrolyte. Such testing includes charge/discharge, cyclic voltammetry, impedance, and supercapacitor stability. The charge/discharge time reaches 790 s at 0.3 A/g, while the cyclic voltammetry curve forms under a high surface area. The produced specific capacitance (C) and energy density values are 766 F/g and 23.55 W.h.kg, correspondingly.
石墨相氮化碳（G-C3N4）和NiS-NiO/G-C3N4纳米复合材料分别通过燃烧法和水热法合成。使用不同的分析方法对这些材料的化学和形态特性进行了确认。扫描电子显微镜（SEM）证实形成了含有额外花瓣状NiS-NiO纳米颗粒的G-C3N4薄片。NiS-NiO/G-C3N4对称超级电容器的电化学测试是在0.6 M盐酸电解质中进行的。此类测试包括充放电、循环伏安法、阻抗和超级电容器稳定性。在0.3 A/g下，充放电时间达到790秒，而循环伏安曲线在高表面积下形成。相应地，所产生的比电容（C）和能量密度值分别为766 F/g和23.55 W.h.kg。
