S. Abinaya, A. Saranraj, Sujin P. Jose, Jayesh Cherusseri, Amanullah Fatehmulla
{"title":"Unveiling dynamic insights of nitrogen-doped carbon quantum dots in α-Fe2O3/PANI nanocomposite for supercapattery application","authors":"S. Abinaya, A. Saranraj, Sujin P. Jose, Jayesh Cherusseri, Amanullah Fatehmulla","doi":"10.1007/s10853-024-10452-7","DOIUrl":null,"url":null,"abstract":"<div><p>We have developed a novel ternary nanocomposite comprising of nitrogen-doped carbon quantum dots@α-Fe<sub>2</sub>O<sub>3</sub>/PANI (N-CQDs@α-Fe<sub>2</sub>O<sub>3</sub>/PANI nanocomposite) and use it as an active electrode material for supercapatteries. Doped carbon nanostructures-based nanocomposites are excellent candidates for electrochemical energy storage due to their tunability in the surface chemistry and availability of large electrochemical surface area. Initially, N-CQDs@α-Fe<sub>2</sub>O<sub>3</sub> nanocomposite was synthesized and further insitu polymerization of aniline leads to the formation of N-CQDs@α-Fe<sub>2</sub>O<sub>3</sub>/PANI nanocomposite. The N-CQDs@α-Fe<sub>2</sub>O<sub>3</sub> serves as a substrate to accommodate PANI to enhance the electrochemical activity. The specific capacity of the ternary nanocomposite electrode is 149 C g<sup>−1</sup> (with a corresponding specific capacitance of 372.5 F g<sup>−1</sup>) at a current density of 1 A g<sup>−1</sup> in a 2 M KOH (aqueous) electrolyte with a coulombic efficiency of 99% after 3000 cycles. Hence, it is proposed that the N-CQDs@α-Fe<sub>2</sub>O<sub>3</sub>/PANI nanocomposite has been suitable for the ideal electrode material which has potential application in hybrid energy storage devices.</p></div>","PeriodicalId":645,"journal":{"name":"Journal of Materials Science","volume":"59 47","pages":"21846 - 21867"},"PeriodicalIF":3.5000,"publicationDate":"2024-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Materials Science","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1007/s10853-024-10452-7","RegionNum":3,"RegionCategory":"材料科学","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
We have developed a novel ternary nanocomposite comprising of nitrogen-doped carbon quantum dots@α-Fe2O3/PANI (N-CQDs@α-Fe2O3/PANI nanocomposite) and use it as an active electrode material for supercapatteries. Doped carbon nanostructures-based nanocomposites are excellent candidates for electrochemical energy storage due to their tunability in the surface chemistry and availability of large electrochemical surface area. Initially, N-CQDs@α-Fe2O3 nanocomposite was synthesized and further insitu polymerization of aniline leads to the formation of N-CQDs@α-Fe2O3/PANI nanocomposite. The N-CQDs@α-Fe2O3 serves as a substrate to accommodate PANI to enhance the electrochemical activity. The specific capacity of the ternary nanocomposite electrode is 149 C g−1 (with a corresponding specific capacitance of 372.5 F g−1) at a current density of 1 A g−1 in a 2 M KOH (aqueous) electrolyte with a coulombic efficiency of 99% after 3000 cycles. Hence, it is proposed that the N-CQDs@α-Fe2O3/PANI nanocomposite has been suitable for the ideal electrode material which has potential application in hybrid energy storage devices.
期刊介绍:
The Journal of Materials Science publishes reviews, full-length papers, and short Communications recording original research results on, or techniques for studying the relationship between structure, properties, and uses of materials. The subjects are seen from international and interdisciplinary perspectives covering areas including metals, ceramics, glasses, polymers, electrical materials, composite materials, fibers, nanostructured materials, nanocomposites, and biological and biomedical materials. The Journal of Materials Science is now firmly established as the leading source of primary communication for scientists investigating the structure and properties of all engineering materials.