INVESTIGADORES
RENDTORFF BIRRER Nicolas Maximiliano
artículos
Título:
Intensity of sulfonitric treatment on multiwall carbon nanotubes
Autor/es:
GÓMEZ, SOFÍA; RENDTORFF, NICOLÁS M.; AGLIETTI, ESTEBAN F.; SAKKA, YOSHIO; SUAREZ, GUSTAVO
Revista:
CHEMICAL PHYSICS LETTERS
Editorial:
ELSEVIER SCIENCE BV
Referencias:
Año: 2017 vol. 689 p. 135 - 141
ISSN:
0009-2614
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.
