Lakshmana Kumar Bommineedi , Tushar B. Deshmukh , Avinash C. Mendhe , Sachin R. Rondiya , Babasaheb R. Sankapal
{"title":"Pseudo bismuth vanadate anchored EDLC-MWCNTs: Supercapacitive electrode to a symmetric solid-state device","authors":"Lakshmana Kumar Bommineedi , Tushar B. Deshmukh , Avinash C. Mendhe , Sachin R. Rondiya , Babasaheb R. Sankapal","doi":"10.1016/j.cartre.2025.100475","DOIUrl":null,"url":null,"abstract":"<div><div>Sponge analogous nano pebbles of bismuth vanadate (BiVO<sub>4</sub>) decorated over multi-walled carbon nanotubes (MWCNTs) synthesized by the successive ionic layer adsorption and reaction (SILAR) method have been explored towards supercapacitor application through enhanced (8 times) surface roughness (S<sub>a</sub>) compared to bare MWCNTs; well supported by wettability studies. Electrochemical studies through CV, GCD, EIS, and electrochemical stability performances of the electrode have been performed in 1 M KCl electrolyte where MWCNTs/BiVO<sub>4</sub> showed the highest capacitance (1334.66 F/g) at 3 mV/s with good electrochemical stability of 103 % even after 3500 CV cycles. Interestingly, symmetric solid-state supercapacitor assembled using PVA embedded LiClO<sub>4</sub> gel exhibited a remarkable potential window of 1.83 V with corresponding energy and power densities of 18.38 Wh/kg and 2.13 kW/kg, respectively at 1 mA/cm<sup>2</sup>. The novelty of this work lies in the introduction of a symmetric device using MWCNTs/BiVO<sub>4</sub> electrodes for the first time along with its potential for real-world use by illuminating ‘VNIT ‘acronym consisting of 21 red LEDs.</div></div>","PeriodicalId":52629,"journal":{"name":"Carbon Trends","volume":"19 ","pages":"Article 100475"},"PeriodicalIF":3.1000,"publicationDate":"2025-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Carbon Trends","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2667056925000252","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MATERIALS SCIENCE, MULTIDISCIPLINARY","Score":null,"Total":0}
引用次数: 0
Abstract
Sponge analogous nano pebbles of bismuth vanadate (BiVO4) decorated over multi-walled carbon nanotubes (MWCNTs) synthesized by the successive ionic layer adsorption and reaction (SILAR) method have been explored towards supercapacitor application through enhanced (8 times) surface roughness (Sa) compared to bare MWCNTs; well supported by wettability studies. Electrochemical studies through CV, GCD, EIS, and electrochemical stability performances of the electrode have been performed in 1 M KCl electrolyte where MWCNTs/BiVO4 showed the highest capacitance (1334.66 F/g) at 3 mV/s with good electrochemical stability of 103 % even after 3500 CV cycles. Interestingly, symmetric solid-state supercapacitor assembled using PVA embedded LiClO4 gel exhibited a remarkable potential window of 1.83 V with corresponding energy and power densities of 18.38 Wh/kg and 2.13 kW/kg, respectively at 1 mA/cm2. The novelty of this work lies in the introduction of a symmetric device using MWCNTs/BiVO4 electrodes for the first time along with its potential for real-world use by illuminating ‘VNIT ‘acronym consisting of 21 red LEDs.