{"title":"剥落石墨作为电化学双层电容器电极:电化学阻抗研究","authors":"D. S. K. Rajaguru, K. Vidanapathirana, K. Perera","doi":"10.4038/SLJP.V22I1.8077","DOIUrl":null,"url":null,"abstract":"Exfoliated graphite (EG) is one of the best alternatives for graphene in the electrochemical devices since graphene needed a cost-effective mass production to reach the commercialization. Liquid phase exfoliation has been identified as an inexpensive, ecofriendly method for high quality EG production. Sri Lankan natural graphite and commercially available graphite were used for exfoliation and the converted EG samples were used to fabricate electrochemical double layer capacitors (EDLCs). They were characterized using Electrochemical Impedance Spectroscopy (EIS). EG prepared by Sri Lankan natural graphite showed higher specific capacitance values compared with commercial graphite EG. Thereby, the value of Sri Lankan graphite over commercial graphite was emphasized.","PeriodicalId":21880,"journal":{"name":"Sri Lankan Journal of Physics","volume":"30 1","pages":"20"},"PeriodicalIF":0.0000,"publicationDate":"2021-01-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":"{\"title\":\"Exfoliated graphite as electrochemical double layer capacitor electrode: Electrochemical impedance study\",\"authors\":\"D. S. K. Rajaguru, K. Vidanapathirana, K. Perera\",\"doi\":\"10.4038/SLJP.V22I1.8077\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Exfoliated graphite (EG) is one of the best alternatives for graphene in the electrochemical devices since graphene needed a cost-effective mass production to reach the commercialization. Liquid phase exfoliation has been identified as an inexpensive, ecofriendly method for high quality EG production. Sri Lankan natural graphite and commercially available graphite were used for exfoliation and the converted EG samples were used to fabricate electrochemical double layer capacitors (EDLCs). They were characterized using Electrochemical Impedance Spectroscopy (EIS). EG prepared by Sri Lankan natural graphite showed higher specific capacitance values compared with commercial graphite EG. Thereby, the value of Sri Lankan graphite over commercial graphite was emphasized.\",\"PeriodicalId\":21880,\"journal\":{\"name\":\"Sri Lankan Journal of Physics\",\"volume\":\"30 1\",\"pages\":\"20\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2021-01-09\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Sri Lankan Journal of Physics\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.4038/SLJP.V22I1.8077\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Sri Lankan Journal of Physics","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.4038/SLJP.V22I1.8077","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Exfoliated graphite as electrochemical double layer capacitor electrode: Electrochemical impedance study
Exfoliated graphite (EG) is one of the best alternatives for graphene in the electrochemical devices since graphene needed a cost-effective mass production to reach the commercialization. Liquid phase exfoliation has been identified as an inexpensive, ecofriendly method for high quality EG production. Sri Lankan natural graphite and commercially available graphite were used for exfoliation and the converted EG samples were used to fabricate electrochemical double layer capacitors (EDLCs). They were characterized using Electrochemical Impedance Spectroscopy (EIS). EG prepared by Sri Lankan natural graphite showed higher specific capacitance values compared with commercial graphite EG. Thereby, the value of Sri Lankan graphite over commercial graphite was emphasized.
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