%0 Journal Article %T Green Sol–gel Synthesis of Cu/Co₃O₄ Nanocomposite Using Curcuma Longa Leaf Extract for High-performance Supercapacitor Electrodes %A Ganvir H V %A Haitham M. Hadidi %A Rajasekaran Saminathan %A Madhuri S. Bhagat %A Krishnaraj C %A Satishkumar P %D 2026 %R 10.13074/jent.2026.03.2541993 %J Journal of Environmental Nanotechnology %P 543-554 %V 15 %N 1 %I Institute for Environmental Nanotechnology %U https://doi.org/10.13074/jent.2026.03.2541993