About: Doping of C-70 fullerene peapods with lithium vapor: Raman spectroscopic and Raman spectroelectrochemical studies

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About: Doping of C-70 fullerene peapods with lithium vapor: Raman spectroscopic and Raman spectroelectrochemical studies Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Raman spectroscopy and in situ Raman spectroelectrochemistry were applied to study the lithium vapor doping of C-70@SWCNTs (peapods). A strong degree of doping was proved by the vanishing of the single walled carbon nanotubes (SWCNT's) radial breathing mode (RBM) and by the attenuation of the tangential (TG) band intensity. In contrast to potassium vapor doping, the strong downshift of the frequency of the TG band has not been observed for Li-doping. The Li vapor treated peapods remained partly doped even if they were exposed to humid air. This has been reflected by a reduced intensity of the nanotube and the fullerene modes and by the change of the shape of the RBM band as compared to that of the undoped sample. The modes of the intratubular fullerene were almost unresolved after the contact of the Li-doped sample with water. A lithium insertion into the interior of a peapod and its strong interaction with the intratubular fullerene is suggested to be responsible for the air-insensitive residual doping. This residual doping was studied by spectroelectrochemical measurements. The TG band of the Li doped peapods is partly upshifted during the anodic doping, which points to the different state of C-70@SWCNTs and C-60@SWCNTs studied previously. Raman spectroscopy and in situ Raman spectroelectrochemistry were applied to study the lithium vapor doping of C-70@SWCNTs (peapods). A strong degree of doping was proved by the vanishing of the single walled carbon nanotubes (SWCNT's) radial breathing mode (RBM) and by the attenuation of the tangential (TG) band intensity. In contrast to potassium vapor doping, the strong downshift of the frequency of the TG band has not been observed for Li-doping. The Li vapor treated peapods remained partly doped even if they were exposed to humid air. This has been reflected by a reduced intensity of the nanotube and the fullerene modes and by the change of the shape of the RBM band as compared to that of the undoped sample. The modes of the intratubular fullerene were almost unresolved after the contact of the Li-doped sample with water. A lithium insertion into the interior of a peapod and its strong interaction with the intratubular fullerene is suggested to be responsible for the air-insensitive residual doping. This residual doping was studied by spectroelectrochemical measurements. The TG band of the Li doped peapods is partly upshifted during the anodic doping, which points to the different state of C-70@SWCNTs and C-60@SWCNTs studied previously. (en)
Title	Doping of C-70 fullerene peapods with lithium vapor: Raman spectroscopic and Raman spectroelectrochemical studies Doping of C-70 fullerene peapods with lithium vapor: Raman spectroscopic and Raman spectroelectrochemical studies (en)
skos:prefLabel	Doping of C-70 fullerene peapods with lithium vapor: Raman spectroscopic and Raman spectroelectrochemical studies Doping of C-70 fullerene peapods with lithium vapor: Raman spectroscopic and Raman spectroelectrochemical studies (en)
skos:notation	RIV/61388955:_____/14:00438502!RIV15-GA0-61388955
http://linked.open...avai/riv/aktivita	I P
http://linked.open...avai/riv/aktivity	I, P(GAP204/10/1677)
http://linked.open...iv/cisloPeriodika	48
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Kavan, Ladislav Kalbáč, Martin Valeš, Václav
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	Ústav fyzikální chemie J. Heyrovského AV ČR, v.v.i.
http://linked.open...dnocenehoVysledku	12220
http://linked.open...ai/riv/idVysledku	RIV/61388955:_____/14:00438502
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	fullerene peapods; Raman spectroelectrochemistry; Li doping (en)
http://linked.open.../riv/klicoveSlovo	Li doping Raman spectroelectrochemistry fullerene peapods
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[F41F15AEC8DE]
http://linked.open...i/riv/nazevZdroje	Nanotechnology
http://linked.open...in/vavai/riv/obor	CF
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...vavai/riv/projekt	Magnetic properties of carbon nanostructures in neutral and doped state
http://linked.open...UplatneniVysledku	2014
http://linked.open...v/svazekPeriodika	25
http://linked.open...iv/tvurceVysledku	Dunsch, L. Kalbáč, Martin Kavan, Ladislav Valeš, Václav
http://linked.open...ain/vavai/riv/wos	000345286400022
issn	0957-4484
number of pages	7 (xsd:int)
http://bibframe.org/vocab/doi	10.1088/0957-4484/25/48/485706

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