@Article{SardinhaAlmeVernFerr:2020:ElReEn,
               author = "Sardinha, Andr{\'e} Ferreira and Almeida, Dalva Alves de Lima and 
                         Vernasqui, La{\'{\i}}s Gimenes and Ferreira, Neiden{\^e}i 
                         Gomes",
          affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto 
                         Nacional de Pesquisas Espaciais (INPE)} and {Instituto Nacional de 
                         Pesquisas Espaciais (INPE)} and {Instituto Nacional de Pesquisas 
                         Espaciais (INPE)}",
                title = "Electrochemical response enhancement of CF and GO/CF composites 
                         using a promising CF etching",
              journal = "Diamond and Related Materials",
                 year = "2020",
               volume = "108",
                pages = "e107997",
                month = "Oct.",
             keywords = "Carbon fiber, Graphene oxide, Supercapacitor, Cyclic voltammogram, 
                         Electrochemical analyses.",
             abstract = "This paper aims at studying the electrochemical performance of 
                         carbon fibers (CF) from chemical treatment using nitric acid at 
                         different times (030 min) and their respective graphene 
                         oxide/carbon fiber (GO/CF) composites. The oxidative process 
                         introduced oxygenated functional groups on the CF surfaces. After 
                         the chemical treatment, CF samples showed cluster formations, 
                         which increased their surface roughness. Although the chemical 
                         treatment did not cause significant changes in CF structures, it 
                         promoted an electrochemical response enhancement. The 
                         electrochemical analyses showed a specific electrochemical surface 
                         area increased from 174.0 (CF0) to 582.1 cm2 cm\−3 (CF30). 
                         The treated CF presented more capacitive profile than that of the 
                         untreated electrode. CF30 showed a capacitance increase of around 
                         1625% compared to that of CF0. GO incorporation also provided 
                         better electrochemical responses for GO/CF composites, which 
                         presented lower equivalent series resistances than those of their 
                         respective CF during galvanostatic charge/discharge curves. 
                         GO/CF30 depicted a capacitance increase of around 8250% compared 
                         to that of GO/CF0 composite. These results pointed out the 
                         oxidative process control importance in carbon materials aiming at 
                         their application for supercapacitors.",
                  doi = "10.1016/j.diamond.2020.107997",
                  url = "http://dx.doi.org/10.1016/j.diamond.2020.107997",
                 issn = "0925-9635",
             language = "en",
           targetfile = "sardinha_electrochemical.pdf",
        urlaccessdate = "28 abr. 2024"
}