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2011-Sustainable Industrial Processing Summit
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| Editors: | Florian K |
| Publisher: | Flogen Star OUTREACH |
| Publication Year: | 2012 |
| Pages: | 630 pages |
| ISBN: | 978-0-9879917-2-0 |
| ISSN: | 2291-1227 (Metals and Materials Processing in a Clean Environment Series) |
Physical Characterisation Of CNT's Produced By Electrolysis In Molten LiCl
Aleksandar Dimitrov 1; Perica Paunovic 1; Ana Tomova 1; Anita Grozdanov2;1FACULTY OF TECHNOLOGY AND METALLURGY, Skopje , Macedonia; 2FACULTY OF TECHNOLOGY AND METALLURGY, Skopje, Macedonia;
Type of Paper: Regular
Id Paper: 145
Topic: 6
Abstract:
This paper is concerned with physical characterization of carbon nanotubes produced by an original procedure for reduction of lithium molten salts onto graphite cathode. Several techniques were employed for characterization, i.e. electron microscopy (SEM and TEM), Raman spectroscopy, thermogravimetric and differential thermal analysis (TGA and DTA). SEM and TEM images show that nanotubes are mostly of curved shape with length of 1÷20 µm and diameter of 20÷40 nm. Raman peaks indicate that the crystallinity of produced nanotubes is rather low. The obtained results suggest that formed product contains of up to 80% multiwalled carbon nanotubes (MWCNTs), the rest being non-reacted graphite and fullerenes. DTA curves show that combustion process of the nanotubes takes place in two stages, i.e. at 450oC and 720oC. At the lower temperature combustion of MWCNTs occurs, while at higher one fullerenes and non-reacted graphite particles burn.