Artículos y presentaciones en Congresos

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Examinando Artículos y presentaciones en Congresos por Tema "Ciencias Químicas"

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    Intensity of sulfonitric treatment on multiwall carbon nanotubes
    (2017) Gómez, Sofía; Rendtorff Birrer, Nicolás Maximiliano; Aglietti, Esteban; Sakka, Yoshio; Suárez, Gustavo
    We present a study of sulfonitric treatment and its effect on MWCNTs at different temperatures (90, 110, 130 and 150°C) using DRX, XPS, FTIR, Raman spectroscopy, TEM and zeta potential. It was found that oxidation starts with the C-C and C-H bonds generating different oxidized groups from alcohol to carboxylic acid, following a sequential oxidation. Given that heterocoagulation needs a maximum zeta potential gap between the ceramic and the MWCNT surface and it significantly exist a risk of manipulate acids at high temperature it is recommended to use acid treatment of CNT at 110 °C for generating ceramic composites by heterocoagulation.