@MastersThesis{Medeiros:2009:ObNaNa,
               author = "Medeiros, Leonardo Iusuti de",
                title = "Obten{\c{c}}{\~a}o de nanocomp{\'o}sitos, nanodiamante sobre 
                         fibra de carbono e nanotubo de carbono sobre fibra de carbono",
               school = "Instituto Nacional de Pesquisas Espaciais (INPE)",
                 year = "2009",
              address = "S{\~a}o Jos{\'e} dos Campos",
                month = "2009-09-02",
             keywords = "nanodiamante, fibra de carbono, nanotubo de carbono, 
                         comp{\'o}sito, nanoestrutura.",
             abstract = "A proposta desta disserta{\c{c}}{\~a}o {\'e} a 
                         obten{\c{c}}{\~a}o de dois comp{\'o}sitos nanoestruturados que 
                         sejam constitu{\'{\i}}dos um por nanodiamante sobre fibra de 
                         carbono e, o outro, por nanotubo de carbono sobre a fibra de 
                         carbono. Em ambos os comp{\'o}sitos as fibras de carbono usadas 
                         s{\~a}o obtidas com tr{\^e}s diferentes {\'{\i}}ndices de 
                         grafitiza{\c{c}}{\~a}o 1000, 1500 e 2000°C. As fibras de carbono 
                         apresentam uma grande {\'a}rea superficial devido a sua 
                         estrutura. Quando utilizadas como substrato para crescimento de 
                         materiais nanoestruturados, podem ter sua {\'a}rea superficial 
                         aumentada. Com o aumento da {\'a}rea superficial estes 
                         comp{\'o}sitos podem ser utilizados na eletroqu{\'{\i}}mica, 
                         como baterias e capacitores ou como sensores 
                         eletroqu{\'{\i}}micos. Ainda, estudando este comp{\'o}sito 
                         podem-se avaliar as mudan{\c{c}}as que ocorrem tanto no filme de 
                         nanodiamante quanto nas fibras de carbono, em fun{\c{c}}{\~a}o 
                         da varia{\c{c}}{\~a}o da concentra{\c{c}}{\~a}o de metano 
                         usada no ambiente de crescimento dos nanodiamantes. Tamb{\'e}m, 
                         foi poss{\'{\i}}vel estudar qual a influ{\^e}ncia dos 
                         {\'{\i}}ndices de grafitiza{\c{c}}{\~a}o das fibras de carbono 
                         sobre a morfologia e a estrutura cristalina dos filmes de 
                         nanodiamante. Para os estudos sobre o comp{\'o}sito formado pelo 
                         nanotubo de carbono e a fibra de carbono, foi verificado as 
                         possibilidades de obten{\c{c}}{\~a}o desse comp{\'o}sito e 
                         tamb{\'e}m analisada qual a influ{\^e}ncia da fibra de carbono 
                         sobre a morfologia dos nanotubos. As caracteriza{\c{c}}{\~o}es 
                         utilizadas para completar o estudo s{\~a}o: Microscopia 
                         Eletr{\^o}nica de Varredura (MEV), Espectroscopia de Espalhamento 
                         Raman, Difratometria de Raios-X, Espectroscopia 
                         Fotoeletr{\^o}nica de raios-x (XPS). ABSTRACT: The purpose of 
                         this dissertation is to obtain two nanostructured composites, one 
                         consisting of a Nano-diamond on carbon fiber and the other of 
                         carbon nanotube on carbon fiber. In both composites, the carbon 
                         fibers used are obtained with three different indexes of 
                         graphitization of 1000, 1500 and 2000 ° C. The carbon fibers show 
                         a large surface area due to its structure. When used as a 
                         substrate for nanostructured materials growth, carbon fibers may 
                         present its surface area increased. With this increased surface 
                         area, this composite may be used in electrochemistry applications, 
                         such as batteries, capacitors, or as electrochemical sensors. 
                         Carbon fibers may also be studied to evaluate changes that occur 
                         not only in the nanodiamond film but also in the carbon fibers as 
                         a function of the concentration variation in the methane used in 
                         the nanodiamond growth environment. It was also possible to study 
                         the influences of the indexes of graphitization of the carbon 
                         fibers over the morphology and crystal structure of the 
                         nanodiamond film. For studies on the composite comprising of the 
                         carbon nanotube and the carbon fiber, it was verified the 
                         possibility of obtaining such composites, and it was examined what 
                         influences the carbon fiber may have over the morphology of the 
                         nanotubes. The characterization techniques used to complete the 
                         studies were: Scanning Electron Microscopy (SEM), Raman Scattering 
                         spectroscopy, diffraction X-ray and Photoelectron Spectroscopy 
                         X-ray (XPS).",
            committee = "Baldan, Maur{\'{\i}}cio Ribeiro (presidente) and Ferreira, 
                         Neiden{\^e}i Gomes (orientador) and Almeida, Erica Cristina",
           copyholder = "SID/SCD",
         englishtitle = "Obtaining nanostructured composites: nanodiamonds on carbon fiber 
                         and carbon nanotubes on carbon fiber",
             language = "pt",
                pages = "109",
                  ibi = "8JMKD3MGP8W/35UNE5H",
                  url = "http://urlib.net/ibi/8JMKD3MGP8W/35UNE5H",
           targetfile = "publicacao.pdf",
        urlaccessdate = "03 maio 2024"
}