About: Graphene etching on SiC grains as a path to interstellar polycyclic aromatic hydrocarbonsformation

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About: Graphene etching on SiC grains as a path to interstellar polycyclic aromatic hydrocarbonsformation Goto Sponge NotDistinct Permalink

An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

Attributes	Values
rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
rdfs:seeAlso	http://www.nature.com/ncomms/2014/140121/ncomms4054/full/ncomms4054.html
Description	We show that aromatic species can be efficiently formed on the graphitized surface of the abundant silicon carbide stardust on exposure to atomic hydrogen under pressure and temperature conditions analogous to those of the interstellar medium. To this aim, we mimic the circumstellar environment using ultra-high vacuum chambers and investigate the SiC surface by in situ advanced characterization techniques combined with first-principles molecular dynamics calculations. These results suggest that top-down routes are crucial to astrochemistry to explain the abundance of organic species and to uncover the origin of unidentified infrared emission features from advanced observations. We show that aromatic species can be efficiently formed on the graphitized surface of the abundant silicon carbide stardust on exposure to atomic hydrogen under pressure and temperature conditions analogous to those of the interstellar medium. To this aim, we mimic the circumstellar environment using ultra-high vacuum chambers and investigate the SiC surface by in situ advanced characterization techniques combined with first-principles molecular dynamics calculations. These results suggest that top-down routes are crucial to astrochemistry to explain the abundance of organic species and to uncover the origin of unidentified infrared emission features from advanced observations. (en)
Title	Graphene etching on SiC grains as a path to interstellar polycyclic aromatic hydrocarbonsformation Graphene etching on SiC grains as a path to interstellar polycyclic aromatic hydrocarbonsformation (en)
skos:prefLabel	Graphene etching on SiC grains as a path to interstellar polycyclic aromatic hydrocarbonsformation Graphene etching on SiC grains as a path to interstellar polycyclic aromatic hydrocarbonsformation (en)
skos:notation	RIV/68378271:_____/14:00427032!RIV15-AV0-68378271
http://linked.open...avai/riv/aktivita	I
http://linked.open...avai/riv/aktivity	I
http://linked.open...iv/cisloPeriodika	JAN
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Jelínek, Pavel Švec, Martin
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Fyzikální ústav AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	18572
http://linked.open...ai/riv/idVysledku	RIV/68378271:_____/14:00427032
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	STM; DFT; astronomy; graphene; PAH (en)
http://linked.open.../riv/klicoveSlovo	PAH astronomy graphene DFT STM
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[D2DB60A33277]
http://linked.open...i/riv/nazevZdroje	Nature Communications
http://linked.open...in/vavai/riv/obor	BM
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	10 (xsd:int)
http://linked.open...UplatneniVysledku	2014
http://linked.open...v/svazekPeriodika	5
http://linked.open...iv/tvurceVysledku	Jelínek, Pavel Švec, Martin Merino, P. Martin-Gago, J. A. Martinez, J. I. Cernicharo, J. Dalmiglio, M. Lacovig, P. Lizzit, S. Soukiassian, P.
http://linked.open...ain/vavai/riv/wos	000331083800037
issn	2041-1723
number of pages	9 (xsd:int)
http://bibframe.org/vocab/doi	10.1038/ncomms4054

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