The present investigation deals with the synthesis of reduced graphene oxide (rGO)/copper oxide (CuO)/silver (Ag) ternary nanocomposites (NCs) by hydrothermal method to improve the electrical behavior. In typical synthesis, ammonia was used as a reducing agent at room temperature. The powder X-ray diffraction (PXRD) pattern revealed the existence of single-phase monoclinic structure and face-centered cubic (FCC) phase of CuO and Ag. Other phase impurities were also observed from the prepared rGO/CuO/Ag NCs. The surface morphology of rGO/CuO/Ag NCs was investigated by SEM and TEM analysis. The surface elemental composition of the prepared material was investigated by the EDAX analysis. The dielectric response of the materials was studied by dielectric constant, dielectric loss, and AC conductivity studies. The lesser amount of activation energy was attained from the synthesized rGO/CuO/Ag NCs, and it was proved that this type of material is the most emerging candidate for various opto-electronics application. The electrochemical behavior was studied by the cyclic voltammetry (CV), galvanostatic charge discharge (GCD), and electrochemical impedance spectroscopy (EIS) measurements. From this study, ideal capacitance behavior with high capacitance of about 575 F/g was achieved respectively for rGO/CuO/Ag NCs at the current density of 1 Ag⁻¹in 0.5 M K₂SO₄ electrolyte solution. These superior electrochemical features demonstrated that the prepared rGO/CuO/Ag NCs are a potential candidate for next-generation supercapacitor systems.

本研究涉及通过水热法合成还原氧化石墨烯（rGO）/氧化铜（CuO）/银（Ag）三元纳米复合材料（NCs）以改善电性能。在典型的合成中，氨在室温下用作还原剂。粉末X射线衍射（PXRD）图谱表明存在CuO和Ag的单相单斜晶结构和面心立方（FCC）相。从制备的rGO / CuO / Ag NCs中还观察到其他相杂质。通过SEM和TEM分析研究了rGO / CuO / Ag NCs的表面形貌。通过EDAX分析研究了所制备材料的表面元素组成。通过介电常数，介电损耗和交流电导率研究研究了材料的介电响应。从合成的rGO / CuO / Ag NCs获得的活化能较少，并且证明这种材料是各种光电应用中最新兴的候选材料。通过循环伏安法（CV），恒电流电荷放电（GCD）和电化学阻抗谱（EIS）测量研究了电化学行为。通过这项研究，在电流密度为1 Ag时，rGO / CuO / Ag NCs分别获得了大约575 F / g的高电容的理想电容行为。和电化学阻抗谱（EIS）测量。通过这项研究，在电流密度为1 Ag时，rGO / CuO / Ag NCs分别获得了大约575 F / g的高电容的理想电容行为。和电化学阻抗谱（EIS）测量。通过这项研究，在电流密度为1 Ag时，rGO / CuO / Ag NCs分别获得了大约575 F / g的高电容的理想电容行为。在0.5 MK ₂ SO ₄电解质溶液中为^-1。这些优异的电化学特性表明，制备的rGO / CuO / Ag NCs是下一代超级电容器系统的潜在候选者。