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Conference Paper: Laboratory study of carbonaceous dust and molecules of astrochemical interest

TitleLaboratory study of carbonaceous dust and molecules of astrochemical interest
Authors
Issue Date2016
PublisherIOP Publishing. The Journal's web site is located at http://www.iop.org/EJ/journal/conf
Citation
The 11th Pacific Rim Conference on Stellar Astrophysics, Hong Kong, 14-17 December 2015. In Journal of Physics: Conference Series, 2016, v. 728, no. 062002 How to Cite?
AbstractIn this paper are reviewed some research works dedicated to the study of carbonaceous dust and molecules of astrochemical interest. First of all it is discussed the carbon arc through which it is possible to produce carbon soot and fullerenes under helium but also many other different products just changing the arcing conditions. For example, when the carbon arc is struck in an hydrocarbon solvent it is possible to produce and trap polyynes in the solvent. Monocyanopolyynes and dicyanopolyynes can be produced as well by selecting the appropriate conditions. Amorphous carbon soot or partially graphitized carbon black can be produced with the carbon arc. Fullerenes were found in space thanks to the reference infrared spectra and the absorption cross sections which were determined in laboratory. Fullerenes are readily reactive with hydrogen yielding fulleranes the hydrogenated fullerenes. Furthermore fullerenes react with PAHs and with iron carbonyl yielding adducts. All these fullerene derivatives were synthesized and their reference spectra recorded in laboratory. It was proposed that petroleum fractions can be used as model substrates in the explanation of the carriers of the AIB (Aromatic Infrared Bands) observed in protoplanetary and planetary nebulae and the UIE (Unidentified Infrared Bands) found in the interstellar medium.
DescriptionConference Theme: Physics and Chemistry of the Late Stages of Stellar Evolution
Session Session 5: Organics and Other Solids in Space: no. 062002
Open Access Journal
Persistent Identifierhttp://hdl.handle.net/10722/230321
ISSN

 

DC FieldValueLanguage
dc.contributor.authorCataldo, F-
dc.contributor.authorGarcia-Hernandez, DA-
dc.contributor.authorManchado, A-
dc.contributor.authorKwok, S-
dc.date.accessioned2016-08-23T14:16:23Z-
dc.date.available2016-08-23T14:16:23Z-
dc.date.issued2016-
dc.identifier.citationThe 11th Pacific Rim Conference on Stellar Astrophysics, Hong Kong, 14-17 December 2015. In Journal of Physics: Conference Series, 2016, v. 728, no. 062002-
dc.identifier.issn1742-6596-
dc.identifier.urihttp://hdl.handle.net/10722/230321-
dc.descriptionConference Theme: Physics and Chemistry of the Late Stages of Stellar Evolution-
dc.descriptionSession Session 5: Organics and Other Solids in Space: no. 062002-
dc.descriptionOpen Access Journal-
dc.description.abstractIn this paper are reviewed some research works dedicated to the study of carbonaceous dust and molecules of astrochemical interest. First of all it is discussed the carbon arc through which it is possible to produce carbon soot and fullerenes under helium but also many other different products just changing the arcing conditions. For example, when the carbon arc is struck in an hydrocarbon solvent it is possible to produce and trap polyynes in the solvent. Monocyanopolyynes and dicyanopolyynes can be produced as well by selecting the appropriate conditions. Amorphous carbon soot or partially graphitized carbon black can be produced with the carbon arc. Fullerenes were found in space thanks to the reference infrared spectra and the absorption cross sections which were determined in laboratory. Fullerenes are readily reactive with hydrogen yielding fulleranes the hydrogenated fullerenes. Furthermore fullerenes react with PAHs and with iron carbonyl yielding adducts. All these fullerene derivatives were synthesized and their reference spectra recorded in laboratory. It was proposed that petroleum fractions can be used as model substrates in the explanation of the carriers of the AIB (Aromatic Infrared Bands) observed in protoplanetary and planetary nebulae and the UIE (Unidentified Infrared Bands) found in the interstellar medium.-
dc.languageeng-
dc.publisherIOP Publishing. The Journal's web site is located at http://www.iop.org/EJ/journal/conf-
dc.relation.ispartofJournal of Physics: Conference Series-
dc.titleLaboratory study of carbonaceous dust and molecules of astrochemical interest-
dc.typeConference_Paper-
dc.identifier.emailKwok, S: deannote@hku.hk-
dc.identifier.authorityKwok, S=rp00716-
dc.description.naturelink_to_OA_fulltext-
dc.identifier.doi10.1088/1742-6596/728/6/062002-
dc.identifier.hkuros262056-
dc.identifier.volume728-
dc.customcontrol.immutablesml 160912-

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