Low-temperature encapsulation of coronene in carbon nanotubes
Date
2012
Authors
Botka, B.
Fustos, M.E.
Klupp, G.
Kocsis, D.
Szekely, E.
Utczas, M.
Simandi, B.
Botos, A.
Hackl, R.
Kamaras, K.
Editors
Advisors
Journal Title
Journal ISSN
Volume Title
Type:
Journal article
Citation
Physica Status Solidi (B): Basic Research, 2012; 249(12):2432-2435
Statement of Responsibility
Conference Name
Abstract
Coronene was encapsulated in single-walled carbon nanotubes (SWNT) by vapor-phase filling at high (450 degrees C) and low (385 degrees C) temperature and by nanoextraction from supercritical carbon dioxide. The presence of coronene inside the tubes was demonstrated indirectly via the formation of double-walled nanotubes (DWNT). To this end several subsequent annealing steps were applied and monitored by Raman spectroscopy. Our results show that the encapsulation is successful with all three methods. However, high-temperature vapor filling produces adsorbed dicoronylene, the dimerized form of coronene, as a side reaction. In order to avoid dicoronylene contamination, we suggest to use low-temperature methods for the production of coronene-filled carbon nanotubes. Coronene (top) and dicoronylene (bottom) molecules.
School/Discipline
Dissertation Note
Provenance
Description
Access Status
Rights
Copyright 2012 WILEY-VCH Verlag