期刊
CHEMICAL PHYSICS LETTERS
卷 689, 期 -, 页码 135-141出版社
ELSEVIER
DOI: 10.1016/j.cplett.2017.10.020
关键词
Carbon nanotubes; Sulfonitric treatment; Surface characterization; Treatment temperature
资金
- CONICET (Consejo de Investigaciones Cientificas y Tecnologicas)
- ANPCyT (Agencia Nacional de Promocion Cientifica y Tecnologica)
We present a study of sulfonitric treatment and its effect on MWCNTs at different temperatures (90, 110, 130 and 150 degrees 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 degrees C for generating ceramic composites by heterocoagulation. (C) 2017 Elsevier B.V. All rights reserved.
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