Rabia Mohamed, Elsayed Asmaa M, Abdallah Alnuwaiser Maha, Abdelazeez Ahmed Adel A
Nanomaterials Science Research Laboratory, Chemistry Department, Faculty of Science, Beni-Suef University, Beni-Suef 62514, Egypt.
TH-PPM Group, Physics Department, Faculty of Science, Beni-Suef University, Beni-Suef 62514, Egypt.
Micromachines (Basel). 2023 Jul 14;14(7):1423. doi: 10.3390/mi14071423.
A AgS-AgO-Ag/poly-2-aminobenzene-1-thiol (P2ABT) nanocomposite was prepared using the photopolymerization reaction using AgNO as an oxidant. The size of the nanocomposite was about 40 nm, in which the morphology was confirmed using TEM and SEM analyses. The functional groups of AgS-AgO-Ag/P2ABT were confirmed using FTIR; also, XRD confirmed the inorganic AgS, Ag, and AgO formation. This nanocomposite has great performance in supercapacitor applications, with it tested in acidic (1.0 M HCl) and basic mediums (1.0 M NaOH). This pseudo-capacitor has great performance that appeared through the charge time in an acid medium in comparison to the basic medium with values of 118 s and 103 s, correspondingly. The cyclic voltammetry (CV) analysis further confirmed the excellent performance of the supercapacitor material, as indicated by the large area under the cyclic curve. The specific capacitance (C) and energy density (E) values (at 0.3 A/g) were 92.5 and 44.4 F/g and 5.0 and 2.52 W·h·Kg in the acidic and basic mediums, correspondingly. The charge transfer was studied through a Nyquist plot, and the produced R values were 4.9 and 6.2 Ω, respectively. Building on these findings, our objective is to make a significant contribution to the progress of supercapacitor technology through a prototype design soon.
采用以硝酸银为氧化剂的光聚合反应制备了硫化银-氧化银-银/聚-2-氨基苯-1-硫醇（P2ABT）纳米复合材料。该纳米复合材料的尺寸约为40nm，通过透射电子显微镜（TEM）和扫描电子显微镜（SEM）分析确定了其形态。利用傅里叶变换红外光谱（FTIR）确定了硫化银-氧化银-银/P2ABT的官能团；此外，X射线衍射（XRD）证实了无机硫化银、银和氧化银的形成。这种纳米复合材料在超级电容器应用中具有优异性能，已在酸性（1.0M盐酸）和碱性介质（1.0M氢氧化钠）中进行了测试。与碱性介质相比，这种赝电容器在酸性介质中的充电时间分别为118秒和103秒，表现出优异性能。循环伏安法（CV）分析进一步证实了超级电容器材料的优异性能，循环曲线下的面积较大即表明了这一点。在酸性和碱性介质中，比电容（C）和能量密度（E）值（在0.3A/g时）分别为92.5和44.4F/g以及5.0和2.52W·h·kg。通过奈奎斯特图研究了电荷转移，产生的R值分别为4.9和6.2Ω。基于这些发现，我们的目标是尽快通过原型设计为超级电容器技术的发展做出重大贡献。
