Kongara, Ramanjaneyulu, et al. “Onion Seed Essential Oil-Grafted Zerovalent Copper Nanoparticles As Promising Material for Supercapacitor Electrodes in Energy Storage Device: Onion Seed Essential Oil-Grafted Zerovalent Copper Nanoparticles ”. Asian Journal of Chemistry, vol. 36, no. 6, May 2024, pp. 1273-80, doi:10.14233/ajchem.2024.31368.