Extraction, Separation and Characterization of Fullerenes from Carbon Soot

Jovanovic, T.; Koruga, Dj.; Polić, Predrag; Dević, Gordana

doi:10.4028/www.scientific.net/msf.413.59

Cited by 12 publications

(24 citation statements)

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“…The substrate utilized for this analysis of the sample was KBr. The transmission spectrum in the range of 400 cm À1 to 4000 cm À1 , showed the most intense lines at 456.75 cm À1 , 533.12 cm À1 , 641.09 cm À1 , 672.39 cm À1 , 793.69 cm À1 , 1131 cm À1 and 1428.09 cm À1 in good agreement with the reported infrared analysis of well characterized samples of C 70 [11].…”

Section: Methodssupporting

confidence: 89%

Enthalpies of combustion and formation of fullerene C70 by isoperibolic combustion calorimetry

Rojas-Aguilar

2004

The Journal of Chemical Thermodynamics

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Section: Methodssupporting

confidence: 89%

Enthalpies of combustion and formation of fullerene C70 by isoperibolic combustion calorimetry

Rojas-Aguilar

2004

The Journal of Chemical Thermodynamics

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“…The other advantages are the employment of smaller amounts of the mentioned solvents, smaller mass of stationary phase, finely granulated Al 2 O 3 and cheaper laboratory equipment in comparison to previous chromatographic methods for their isolation under pressure (15)(16)(17). This is also a relevant contribution in comparison to previous extraction and chromatographic methods, whereby only the isolation of the basic fullerenes was successfully performed under atmospheric pressure (1)(2)(3)(4)(5)(6)(7)(8)(9)(10)(11)(12)(13)(14).…”

Section: Resultsmentioning

confidence: 84%

“…The isolation of the higher fullerenes under atmospheric pressure from this extract would be a significant advancement in comparison to previous methods, whereby only isolation of the basic fullerenes has been achieved (1)(2)(3)(4)(5)(6)(7)(8)(9)(10)(11)(12)(13)(14). The other advantages in comparison to previous chromatographic methods, whereby the higher fullerenes were obtained under pressure (15)(16)(17), would be: the employment of smaller amounts of solvents for their elution, smaller mass of stationary phase Al 2 O 3 , as well as cheaper laboratory equipment.…”

Section: Introductionmentioning

confidence: 98%

“…The isolated higher fullerenes are significant for further investigations of their physical, chemical and spectroscopic properties, as well as for the numerous possible nanotechnological applications in, for example, electronic and optical devices, solar cells, optical, chemical or acoustic sensors, catalysts, synthesis of diamonds, storage of hydrogen, batteries, superconductors, diagnostic or therapeutic agents, transport of metal atoms or biologically active molecules in vivo (1)(2)(3)(4)(5)(6)(7)(8)(15)(16)(17)(18)(19)(20)(21)(22)(23)(24)(25)(26)(27)(28)(29)(30)(31)(32).…”

Section: Introductionmentioning

confidence: 99%

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Isolation and Characterization of the Higher Fullerenes from Carbon Soot

Jovanovic

Koruga

Jovančićević

2011

Fullerenes, Nanotubes and Carbon Nanostructures

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In the first phase of the process, the higher fullerenes, mainly C 76 and C 84 , as well as the basic fullerenes C 60 and C 70 , in a smaller amount, were Soxhlet extracted with pyridine from the sample of initial carbon soot, produced in electrical arc. The extract was obtained in increased, high yield of 16.4%, due to application of the original procedure. The solubility of fullerenes in this solvent was determined. Chromatographic separation of fullerenes from pyridine extract was performed by continual elution, in one phase of the process, under atmospheric pressure, with original, defined gradient of solvents, from pure hexane to pure toluene, on active Al 2 O 3 column, by a new, improved method. Identifications of fullerenes in the obtained chromatographically purified fractions and pyridine extract of the initial soot were performed using determined IR and UV/VIS techniques that have not been presented previously for the higher fullerenes.

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“…These calculations were already shown to be successful in predicting the overall absorption pattern and the vibrational frequencies, as well as the molecular structures of the basic fullerenes C 60 and C 70 [31][32][33][34][35]. Excellent agreement with the experimental data was observed [23,24,[36][37][38].…”

Section: Introductionmentioning

confidence: 70%

Recent Advances in IR and UV/VIS Spectroscopic Characterization of the C₇₆ and C₈₄ Isomers of D₂ Symmetry

Jovanovic

Koruga

Jovančićević

2014

Journal of Nanomaterials

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The stable isomers of the higher fullerenes C 76 and C 84 with D 2 symmetry as well as the basic fullerenes C 60 and C 70 were isolated from carbon soot and characterized by the new and advanced methods, techniques, and processes. The validity of several semiempirical, ab initio, and DFT theoretical calculations in predicting the general pattern of IR absorption and the vibrational frequencies, as well as the molecular electronic structure of the C 76 and C 84 isomers of D 2 symmetry, is confirmed, based on recent experimental results. An excellent correlation was found between the previously reported theoretical data and the recently obtained experimental results for these molecules over the relevant spectral range for the identification of fullerenes. These results indicate that there are no errors in the calculations in the significant spectral regions, the assumptions that were based on previous comparisons with partial experimental results. Isolated fullerenes are important for their applications in electronic and optical devices, solar cells, optical limiting, sensors, polymers, nanophotonic materials, diagnostic and therapeutic agents, health and environment protection, and so forth.

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Extraction, Separation and Characterization of Fullerenes from Carbon Soot

Cited by 12 publications

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Enthalpies of combustion and formation of fullerene C70 by isoperibolic combustion calorimetry

Enthalpies of combustion and formation of fullerene C70 by isoperibolic combustion calorimetry

Isolation and Characterization of the Higher Fullerenes from Carbon Soot

Recent Advances in IR and UV/VIS Spectroscopic Characterization of the C₇₆ and C₈₄ Isomers of D₂ Symmetry

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Extraction, Separation and Characterization of Fullerenes from Carbon Soot

Cited by 12 publications

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Enthalpies of combustion and formation of fullerene C70 by isoperibolic combustion calorimetry

Enthalpies of combustion and formation of fullerene C70 by isoperibolic combustion calorimetry

Isolation and Characterization of the Higher Fullerenes from Carbon Soot

Recent Advances in IR and UV/VIS Spectroscopic Characterization of the C76 and C84 Isomers of D2 Symmetry

Contact Info

Product

Resources

About

Recent Advances in IR and UV/VIS Spectroscopic Characterization of the C₇₆ and C₈₄ Isomers of D₂ Symmetry