Biogenic‐Assisted Synthesis of Cu–Zn–Co Ternary Oxides Nanocomposite: Investigation on Their Bioactivity and Electrochemical Behavior

Nanoparticles are the materials of the future after their well garnished development, especially, in the field of biomedical and energy sectors because of its qualitative priority of people. By spotting these aspects, we determine to synthesize a mixed metal oxide appended nanocomposite (NAC) from Cu, Zn and Co. We eradicate the utilization of chemicals by plant‐assisted synthetic approach. In this method we employs the aqueous extract from Myristica fragrans (nutmeg) mace as a reducing, capping and stabilizing agent to synthesize the mixed metal oxide‐based nanocomposite composed of Cu, Zn, and Co. FT‐IR, UV–Visible, PXRD, scanning electron microscopy (SEM), EDS, and transmission electron microscopy (TEM) techniques supports the formation of desired NAC in both morphologically and chemically. The antioxidant activity of the NAC was assessed against the DPPH • , ABTS •+ , NO • , ferric reducing antioxidant power (FRAP), and O 2− free radicals. Further, the electrochemical properties of CV, GCD and EIS are measured in 6 M NaOH. At a 1 Ag −1 current density, the composite exhibit greater capacitance (402.04 C g −1 ), after 2000 cycles the NAC electrode shows excellent 95% of capacity retention.