Work

Green synthesis using Erythrina variegata extract and various studies on copper oxide nanoparticles for supercapacitor applications

Year: 2025

Type: article

Abstract: Copper oxide (CuO) nanoparticles (NPs) were synthesized using a variety of physical and chemical methods. Among these methods, biological synthesis is preferred to reduce environmental problems. This research aims to generate CuO nanoparticles using leaf extract from the plant leaves of Erythrina variegata through a biological method. The monoclinic crystal phase was verified by XRD analysis. The crystal size was estimated using Scherrer's formula, and the Williamson-Hall (W-H) method was used to evaluate both crystal size and microstrain. FTIR analysis of green-synthesized CuO nanoparticles was performed, and functional groups were identified. UV-Vis analysis of the sample was performed and microscopic techniques, including SEM, EDAX, TEM and SAED were used to characterize CuO nanoparticles. A cyclic voltammetry study was conducted to investigate the electrochemical behavior and to calculate the specific capacitance of the model. The galvanostatic charge-discharge (GCD) performance of CuO nanoparticles was analyzed. The results of various studies were analyzed and presented in this article.

Source: Next Materials

DOI: 10.1016/j.nxmate.2025.101241

Authors: V. Saththeesh, H. Johnson Jeyakumar, P. Selvarajan

Institution: Manonmaniam Sundaranar University

Language: English

Topic: Copper-based nanomaterials and applications

Subfield: Materials Chemistry

Field: Materials Science

Domain: Physical Sciences

SDG: Responsible consumption and production

Open Access status: gold

Estimated APC paid: $1,280