Artículos de revistas
Intensity of sulfonitric treatment on multiwall carbon nanotubes
Fecha
2017-12Registro en:
Gómez, Sofía; Rendtorff Birrer, Nicolás Maximiliano; Aglietti, Esteban Fausto; Sakka, Yoshio; Suarez, Gustavo; Intensity of sulfonitric treatment on multiwall carbon nanotubes; Elsevier Science; Chemical Physics Letters; 689; 12-2017; 135-141
0009-2614
CONICET Digital
CONICET
Autor
Gómez, Sofía
Rendtorff Birrer, Nicolás Maximiliano
Aglietti, Esteban Fausto
Sakka, Yoshio
Suarez, Gustavo
Resumen
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.