Chemically Modified Multi-walled Carbon Nanotubes (MWCNTs) with Anchored Acidic Groups

Nuruzatulifah Asari @ Mansor, and Tessonnier, Jean-Philippe and Ali Rinaldi, and Reiche, Sylvia and M.G, Kutty (2012) Chemically Modified Multi-walled Carbon Nanotubes (MWCNTs) with Anchored Acidic Groups. Sains Malaysiana, 41 (5). pp. 603-609. ISSN 0126-6039


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Surface functionalization of multi-walled carbon nanotubes (MWCNTs) was carried out using a gas phase treatment in a Universal Temperature Program (UTP) reactor by flowing SO3 gas onto the CNTs while being heated at different temperatures. The functionalized nanotubes were characterized using X-ray Fluorescence (XRF), Fourier Transform Infrared Spectroscopy (FT-IR) and Raman spectroscopy. The amount of oxyen and sulfur containing groups was determined by acid-base titration. The titration results were in good agreement with elemental analysis using x-ray fluorescence. FTIR analysis showed the presence of oxygen and sulfur containing groups, S=O, C-S, C=O and -COOH. Raman spectroscopy confirmed that oxygen and sulfur containing acidic groups covalently attached to the sidewall of the MWCNTs.

Item Type:Article
Keywords:Carbon nanotubes; characterization; functionalization; sulphur-based surface
Journal:Sains Malaysiana
ID Code:4474
Deposited By: Mr Azam
Deposited On:23 Apr 2012 09:30
Last Modified:14 Dec 2016 06:36

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