Advancement of the Process for Extraction, Chromatography and Characterization of Fullerenes
Апстракт
In the first phase of this work, the basic C60 and C70 as well as the higher fullerenes, mainly C76 and C84, were Soxhlet extracted with p-xylene and n-heptane from the samples of carbon soot, produced in electrical arc, yielding 5.9% and 0.7% of the extract, respectively. The remaining, p-xylene insoluble soot was then extracted with pyridine, by original advanced method, increasing the entire extract yield for an additional 5.9% to 11.8%. The procedures for increases of the basic and higher fullerenes yields, as well as for additional, selective extraction of the higher fullerenes were found. Chromatographic separation of the basic and the higher C76 and C84 fullerenes from p-xylene extract was performed by continual elution, in one phase of the process, under atmospheric pressure, with original, defined, gradient of solvents from 5% toluene in hexane to pure 100% toluene, on active Al2O3 column, by a new, improved method. Identifications of the basic and the higher fullerenes in chr...omatographically purified fractions, as well as in the obtained extracts, were performed using determined techniques of IR and UV/VIS spectroscopy that have not been presented previously for the higher fullerenes.
Кључне речи:
Carbon soot / Basic and higher fullerenes / Soxhlet extractions / Chromatography / IR / UV / VISИзвор:
Fullerenes Nanotubes and Carbon Nanostructures, 2009, 17, 2, 135-150Издавач:
- Taylor & Francis Inc, Philadelphia
Финансирање / пројекти:
- MPNTR 6349
DOI: 10.1080/15363830802671759
ISSN: 1536-383X
WoS: 000263812700006
Scopus: 2-s2.0-61649092878
Колекције
Институција/група
Hemijski fakultet / Faculty of ChemistryTY - JOUR AU - Jovanović, Tamara AU - Koruga, Đuro AU - Jovančićević, Branimir AU - Simic-Krstic, J. PY - 2009 UR - https://cherry.chem.bg.ac.rs/handle/123456789/610 AB - In the first phase of this work, the basic C60 and C70 as well as the higher fullerenes, mainly C76 and C84, were Soxhlet extracted with p-xylene and n-heptane from the samples of carbon soot, produced in electrical arc, yielding 5.9% and 0.7% of the extract, respectively. The remaining, p-xylene insoluble soot was then extracted with pyridine, by original advanced method, increasing the entire extract yield for an additional 5.9% to 11.8%. The procedures for increases of the basic and higher fullerenes yields, as well as for additional, selective extraction of the higher fullerenes were found. Chromatographic separation of the basic and the higher C76 and C84 fullerenes from p-xylene extract was performed by continual elution, in one phase of the process, under atmospheric pressure, with original, defined, gradient of solvents from 5% toluene in hexane to pure 100% toluene, on active Al2O3 column, by a new, improved method. Identifications of the basic and the higher fullerenes in chromatographically purified fractions, as well as in the obtained extracts, were performed using determined techniques of IR and UV/VIS spectroscopy that have not been presented previously for the higher fullerenes. PB - Taylor & Francis Inc, Philadelphia T2 - Fullerenes Nanotubes and Carbon Nanostructures T1 - Advancement of the Process for Extraction, Chromatography and Characterization of Fullerenes VL - 17 IS - 2 SP - 135 EP - 150 DO - 10.1080/15363830802671759 ER -
@article{ author = "Jovanović, Tamara and Koruga, Đuro and Jovančićević, Branimir and Simic-Krstic, J.", year = "2009", abstract = "In the first phase of this work, the basic C60 and C70 as well as the higher fullerenes, mainly C76 and C84, were Soxhlet extracted with p-xylene and n-heptane from the samples of carbon soot, produced in electrical arc, yielding 5.9% and 0.7% of the extract, respectively. The remaining, p-xylene insoluble soot was then extracted with pyridine, by original advanced method, increasing the entire extract yield for an additional 5.9% to 11.8%. The procedures for increases of the basic and higher fullerenes yields, as well as for additional, selective extraction of the higher fullerenes were found. Chromatographic separation of the basic and the higher C76 and C84 fullerenes from p-xylene extract was performed by continual elution, in one phase of the process, under atmospheric pressure, with original, defined, gradient of solvents from 5% toluene in hexane to pure 100% toluene, on active Al2O3 column, by a new, improved method. Identifications of the basic and the higher fullerenes in chromatographically purified fractions, as well as in the obtained extracts, were performed using determined techniques of IR and UV/VIS spectroscopy that have not been presented previously for the higher fullerenes.", publisher = "Taylor & Francis Inc, Philadelphia", journal = "Fullerenes Nanotubes and Carbon Nanostructures", title = "Advancement of the Process for Extraction, Chromatography and Characterization of Fullerenes", volume = "17", number = "2", pages = "135-150", doi = "10.1080/15363830802671759" }
Jovanović, T., Koruga, Đ., Jovančićević, B.,& Simic-Krstic, J.. (2009). Advancement of the Process for Extraction, Chromatography and Characterization of Fullerenes. in Fullerenes Nanotubes and Carbon Nanostructures Taylor & Francis Inc, Philadelphia., 17(2), 135-150. https://doi.org/10.1080/15363830802671759
Jovanović T, Koruga Đ, Jovančićević B, Simic-Krstic J. Advancement of the Process for Extraction, Chromatography and Characterization of Fullerenes. in Fullerenes Nanotubes and Carbon Nanostructures. 2009;17(2):135-150. doi:10.1080/15363830802671759 .
Jovanović, Tamara, Koruga, Đuro, Jovančićević, Branimir, Simic-Krstic, J., "Advancement of the Process for Extraction, Chromatography and Characterization of Fullerenes" in Fullerenes Nanotubes and Carbon Nanostructures, 17, no. 2 (2009):135-150, https://doi.org/10.1080/15363830802671759 . .