Herein, we reported a facile, cost efficient, synthesis of Gr@NiCu NCs nanocomposite and explored their application in supercapacitor and antibacterial applications. The Graphene sheets in the NiCu based electrode showed a high specific surface area and supports conductive networks decorated with oxygen groups, which synergistically improve charge storage capability. Furthermore, Gr@NiCu NCs contain hydrophilic oxygen groups of chemically reduced graphene oxide, which allows easy access of the electrolyte to the electrode’s pores. An electrochemical study demonstrated the highest specific capacitance of 977 Fg⁻¹ at 10 Ag^-1 and remarkable cyclic retentiveness ∼90% even after 1000 cycles. A noteworthy energy density of the Gr@NiCu NCs achieves approximately 542 KWh kg⁻¹ and a power density of 21 kW kg⁻¹ acquired through the CD description utilizing a current density of 10 Ag^-1. The antimicrobial activity of synthesized Gr@NiCu NCs was performed against S. Aureus, E. coli, and MRSA ATCC BAA 1708, P.Aeroginosa (ATCC 27853), S.Mutans (MTCC SM 497) strains compared with ampicillin antibiotic drug. This potent antibacterial activity is attributable to the synergistic apoptosis from Cu²⁺ and bacteriostatic effect Ni²⁺ ions with graphene sheet (enhance ROS production), released from Gr@NiCu NCs.

在这里，我们报道了一种简便，经济高效的Gr @ NiCu NCs纳米复合材料的合成方法，并探讨了它们在超级电容器和抗菌应用中的应用。NiCu基电极中的石墨烯片具有较高的比表面积，并支持装饰有氧基团的导电网络，从而协同提高了电荷存储能力。此外，Gr @ NiCu NCs包含化学还原的氧化石墨烯的亲水性氧基团，使电解质易于进入电极的孔中。电化学研究表明，即使经过1000次循环，在10 Ag ^-1时的最高比电容为977 Fg ^-1，并且具有显着的循环保持性〜90％。Gr @ NiCu NCs的显着能量密度达到约542 KWh kg ^-1通过CD描述获得的功率密度为21 kW kg ^-1，使用的电流密度为10 Ag ^-1。与氨苄青霉素抗生素药物相比，合成的Gr @ NiCu NCs对金黄色葡萄球菌，大肠杆菌和MRSA ATCC BAA 1708，P.Aeroginosa（ATCC 27853），S.Mutans（MTCC SM 497）菌株具有抗微生物活性。这种有效的抗菌活性可归因于从Gr @ NiCu NCs释放的Cu ²⁺协同凋亡和Ni ²⁺离子与石墨烯片的抑菌作用（增强ROS的产生）。