Fullerene Production from Cathodic Deposits
| Autor: | Akif Sesli, İbrahim Mutlay, Adnan Kenar, Burhanettin Çiçek, Mustafa Oymael |
|---|---|
| Rok vydání: | 2009 |
| Předmět: |
Nanotube
Fullerene Materials science Physics::Instrumentation and Detectors Organic Chemistry Nanotechnology medicine.disease_cause Atomic and Molecular Physics and Optics Cathode Soot law.invention Cathodic protection Anode Electric arc Chemical engineering law Torr Physics::Atomic and Molecular Clusters medicine General Materials Science Physical and Theoretical Chemistry |
| Zdroj: | Fullerenes, Nanotubes and Carbon Nanostructures. 17:151-158 |
| ISSN: | 1536-4046 1536-383X |
| DOI: | 10.1080/15363830802671882 |
| Popis: | Mechanisms responsible for the formation of fullerenes are still open questions. As with other techniques, arc discharge has also well acknowledged parameters such as the type of the ambient gas and its pressure. It is highly agreed that fullerene forming mechanisms favor 100 Torr of helium pressure. Both above and below this pressure profound decrease in fullerene content would be observed. During the arc synthesis, nanotube containing slag-like deposits form on the cathode. In this work we grew longer deposits and retreated them as anodes in the electric arc. Contrary to the well recognized decrease in fullerene contents below 100 Torr of helium pressure, the soot obtained from retreatment of cathodic deposits had higher fullerene contents, which would point out a change in the reaction pathway. |
| Databáze: | OpenAIRE |
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