@Article{GonçalvesDaBiNaReFe:2007:InHeTr,
               author = "Gon{\c{c}}alves, E. S. and Dalmolin, C. and Biaggio, S. R. and 
                         Nascente, P. A. D. and Rezende, M. C. and Ferreira, Neiden{\^e}i 
                         Gomes",
          affiliation = "{Divis{\~a}o de Materiais. Centro T{\'e}cnico Aeroespacial 
                         (CTA)} and Departamento de Qu{\'{\i}}mica, Universidade Federal 
                         de S{\~a}o Carlos and Departamento de Qu{\'{\i}}mica, 
                         Universidade Federal de S{\~a}o Carlos and Departamento de 
                         Engenharia de Materiais, Universidade Federal de S{\~a}o Carlos 
                         and Divis{\~a}o de Materiais, Centro T{\'e}cnico Aeroespacial 
                         (CTA) and {Instituto Nacional de Pesquisas Espaciais (INPE)}",
                title = "Influence of heat treatment temperature on the morphological and 
                         structural aspects of reticulated vitreous carbon used in 
                         polyaniline electrosynthesis",
              journal = "Applied Surface Science",
                 year = "2007",
               volume = "253",
               number = "20",
                pages = "8340--8344",
                month = "Aug.",
             keywords = "RVC, polyaniline, electrosynthesis, heat treatment temperature, 
                         ELECTRON-TRANSFER KINETICS, RAY PHOTOELECTRON-SPECTROSCOPY, 
                         ORDERED GRAPHITE, THIN-FILMS, DEFECTS, DEPOSITION, ADSORPTION, 
                         LITHIUM, CVD.",
             abstract = "Reticulated vitreous carbon (RVC) was obtained from different heat 
                         treatment temperature (HTT), in the range from 700 up to 2000 
                         degrees C, and used as a substrate for polyaniline growth from 
                         electrosynthesis. The influence of HTT on RVC chemical surface was 
                         studied by X-ray photoelectron spectroscopy (XPS) and correlated 
                         to electrochemical parameters used in the electrosynthesis. XPS 
                         analyses have shown that RVC heteroatoms decrease as HTT 
                         increases. The results reveal the migration of chemical bonds from 
                         oxidized carbon forms towards carbon atoms as the unique final 
                         product. Cyclic voltammetry, electrochemical impedance 
                         spectroscopy, and stability test of polyaniline films were 
                         performed from oxidized and non-oxidized RVC substrates. Cyclic 
                         voltarnmetry in 0.5 mol L-1 H2SO4 revealed higher capacitance for 
                         the RVC treated at 1000 degrees C and oxidized in a hot H2SO4 
                         solution. The charge accumulation after RVC chemical treatment has 
                         increased around ten times. The lowest electric resistivities and 
                         impedances were obtained for the RVC treated at 2000 degrees C, 
                         which also showed the highest polyaniline stability.",
           copyholder = "SID/SCD",
                 issn = "0169-4332",
             language = "en",
           targetfile = "influence of heat treatment.pdf",
        urlaccessdate = "03 maio 2024"
}