@InProceedings{AntunesLoboCoraTrav:2007:PrCaNa,
               author = "Antunes, {\'E}rica Freire and Lobo, Anderson Oliveira and Corat, 
                         Evaldo Jos{\'e} and Trava-Airoldi, Vladimir Jesus",
          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 = "Production of Carbon Nanotubes by Nebulized Spray Pyrolysis of the 
                         Catalyst",
                 year = "2007",
         organization = "Encontro sobre Diamante, Carbono Amorfo, Nanotubos de Carbono e 
                         Materiais Relacionados.",
             abstract = "The nebulized pyrolysis method is a technique similar to spray 
                         pirolysis based on the simultaneous injection of a 
                         metallocenehydrocarbon solution into the reaction furnace, using 
                         an inert gas as carrier. The difference is the use of ultrasonic 
                         methods to nebulize the solution, which allows forming smaller 
                         particles. The major advantage of spray methods consists in the 
                         direct and continuous generation of fresh catalytic particles 
                         throughout the entire growth cycle. Our experiments are still in 
                         lab scale, but there are possibilities to scale up the method for 
                         continuous or semi-continuous production. In our case, we have 
                         produced carbon nanotubes in a quartz tubular furnace with 
                         diameter of 1 inch and length of 15cm, using a hexane solution of 
                         ferrocene (20g/L), with argon or nitrogen as carrier gas at 200 
                         sccm. The carbon nanotubes have grown in a thin film form, 
                         aligned, on quartz wall, with thickness of 100-200 dm and diameter 
                         between 50 and 100 nm during 10 min, revealed by scanning electron 
                         microscopy. The Raman spectra show good crystalline quality. This 
                         system produces ~0.1g of multiwalled carbon nanotubes at each 
                         run.",
  conference-location = "Fortaleza, CE",
      conference-year = "24-26 out.",
             language = "en",
        urlaccessdate = "06 maio 2024"
}