Intensity of sulfonitric treatment on multiwall carbon nanotubes

We present a study of sulfonitric treatment and its effect on MWCNTs at different temperatures (90, 110, 130 and 150ºC) 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...

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Detalles Bibliográficos
Autores principales: Gómez, Sofía, Rendtorff Birrer, Nicolás Maximiliano, Aglietti, Esteban Fausto, Sakka, Yoshio, Suárez, Gustavo
Formato: Articulo
Lenguaje:Inglés
Publicado: 2017
Materias:
Ciencias Exactas
carbon nanotubes
sulfonitric treatment
surface characterization
treatment temperature
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/106993
https://www.sciencedirect.com/science/article/abs/pii/S0009261417309442
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
Descripción
Sumario:We present a study of sulfonitric treatment and its effect on MWCNTs at different temperatures (90, 110, 130 and 150ºC) 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 ºC for generating ceramic composites by heterocoagulation.

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