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

MPG-Autoren
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Tessonnier,  Jean-Philippe
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

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Rinaldi,  Ali
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

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Reiche,  Sylvia
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

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Zitation

Mansor, N. B. A., Tessonnier, J.-P., Rinaldi, A., Reiche, S., & Kutty, M. (2012). Chemically Modified Multi-walled Carbon Nanotubes (MWCNTs) with Anchored Acidic Groups. Sains Malaysiana, 41(5), 603-609. Retrieved from http://www.myjurnal.my/public/article-view.php?id=62942.


Zitierlink: http://hdl.handle.net/11858/00-001M-0000-0010-1BDB-F
Zusammenfassung
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.