K.M. Girish , R. Lavanya , N. Sowmyshree , Kushi D. Jain , K. Gurushantha , T. Ramakrishnappa
{"title":"Preparation and electrochemical properties of Co3O4 as potential electrode materials for supercapacitor and battery applications","authors":"K.M. Girish , R. Lavanya , N. Sowmyshree , Kushi D. Jain , K. Gurushantha , T. Ramakrishnappa","doi":"10.1016/j.fub.2025.100071","DOIUrl":null,"url":null,"abstract":"<div><div>The increasing economy and population require sustainable and high-performance electrical energy storage solutions. Green synthesis routes are preferred for nanoparticle production due to their low toxicity, cost-effectiveness, and environmentally friendly nature. This study focuses on the green synthesis of cobalt oxide (Co<sub>3</sub>O<sub>4</sub>) nanoparticles using bougainvillea flower extract. PXRD (Powder X-ray diffractometry) analysis confirmed the crystalline nature of the Co<sub>3</sub>O<sub>4</sub>, representing a face-centered cubic structure with a crystallite size between 20 and 28 nm, SEM (Scanning electron microscopy) indicates a spherical morphology. Electrochemical performance was evaluated, with Co<sub>3</sub>O<sub>4</sub> as an electrode material for supercapacitor and battery applications. redox peaks, electrochemical interactions, and charge/discharge cycles were explored using cyclic voltammetry (CV), galvanostatic charge-discharge (GCD), and electrochemical impedance spectroscopy (EIS). The prepared Co<sub>3</sub>O<sub>4</sub> electrode demonstrated a superior specific capacity of 1317 F/g at a scan rate of 20 mV/s. All the results suggest that the prepared material has potential for energy storage applications.</div></div>","PeriodicalId":100560,"journal":{"name":"Future Batteries","volume":"6 ","pages":"Article 100071"},"PeriodicalIF":0.0000,"publicationDate":"2025-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Future Batteries","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2950264025000504","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
The increasing economy and population require sustainable and high-performance electrical energy storage solutions. Green synthesis routes are preferred for nanoparticle production due to their low toxicity, cost-effectiveness, and environmentally friendly nature. This study focuses on the green synthesis of cobalt oxide (Co3O4) nanoparticles using bougainvillea flower extract. PXRD (Powder X-ray diffractometry) analysis confirmed the crystalline nature of the Co3O4, representing a face-centered cubic structure with a crystallite size between 20 and 28 nm, SEM (Scanning electron microscopy) indicates a spherical morphology. Electrochemical performance was evaluated, with Co3O4 as an electrode material for supercapacitor and battery applications. redox peaks, electrochemical interactions, and charge/discharge cycles were explored using cyclic voltammetry (CV), galvanostatic charge-discharge (GCD), and electrochemical impedance spectroscopy (EIS). The prepared Co3O4 electrode demonstrated a superior specific capacity of 1317 F/g at a scan rate of 20 mV/s. All the results suggest that the prepared material has potential for energy storage applications.