About: In Situ Raman Spectroelectrochemistry as a Tool for the Differentiation of Inner Tubes of Double-Wall Carbon Nanotubes and Thin Single-Wall Carbon Nanotubes

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About: In Situ Raman Spectroelectrochemistry as a Tool for the Differentiation of Inner Tubes of Double-Wall Carbon Nanotubes and Thin Single-Wall Carbon Nanotubes Goto Sponge NotDistinct Permalink

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Description	The in situ Raman spectroelectrochemistry has been used to distinguish between the thin Single Wall Carbon Nanotubes (SWCNT) and the inner tubes of Double Wall Carbon Nanotubes (DWCNT). The spectroelectrochemical method is based on the different change of the electronic structure of the inner tube in DWCNT and that of SWCNT during electrochemical charging, which is reflected in Raman spectra. During electrochemical charging the inner tubes of DWCNT exhibit a delayed attenuation of the intensities of their Raman modes as referred to the behavior of SWCNT of similar diameter. The changes are pronounced for the radial breathing mode and thus these modes are diagnostic for the distinction of inner tubes of DWCNT from the thin SWCNT. The different sensitivity of inner and outer tubes to the applied electrochemical charging is a simple analytical tool for differentiation of SWCNT and DWCNT in a mixture. The significance of the proposed method is demonstrated on a commercial DWCNT sample. The in situ Raman spectroelectrochemistry has been used to distinguish between the thin Single Wall Carbon Nanotubes (SWCNT) and the inner tubes of Double Wall Carbon Nanotubes (DWCNT). The spectroelectrochemical method is based on the different change of the electronic structure of the inner tube in DWCNT and that of SWCNT during electrochemical charging, which is reflected in Raman spectra. During electrochemical charging the inner tubes of DWCNT exhibit a delayed attenuation of the intensities of their Raman modes as referred to the behavior of SWCNT of similar diameter. The changes are pronounced for the radial breathing mode and thus these modes are diagnostic for the distinction of inner tubes of DWCNT from the thin SWCNT. The different sensitivity of inner and outer tubes to the applied electrochemical charging is a simple analytical tool for differentiation of SWCNT and DWCNT in a mixture. The significance of the proposed method is demonstrated on a commercial DWCNT sample. (en) In situ Ramanova spektroelektrochemie byla použita pro odlišení tenkých jednostěnných uhlíkových nanotub (SWCNT) a vnitřních tub v dvojstěnných uhlíkových nanotubách (DWCNT). Tato spektroelektrochemická metoda je založena na odlišné změně v elektronické struktuře u vnitřních tub DWCNT a u SWCNT během elektrochemického nabíjení. Tyto změny jsou patrné v Ramanských spektrech. Během elektrochemického dopování vyhasínají pásy vnitřních tuby DWCNT pomaleji než je tomu u SWCNT s podobným průměrem. Tato změna je výrazná zejména u radiálního dýchacího modu (RBM) a proto je tento pás vhodný pro odlišení vnitřních tub DWCNT a tenkých SWCNT. Odlišná citlivost vnitřních a vnějších tub na aplikovaný elektrochemický potenciál může tedy být využita pro odlišení SWCNT a DWCNT ve směsi. Praktické využití této metody je demonstrováno na komerčním vzorku DWCNT. (cs)
Title	In Situ Raman Spectroelectrochemistry as a Tool for the Differentiation of Inner Tubes of Double-Wall Carbon Nanotubes and Thin Single-Wall Carbon Nanotubes In situ Ramanova spektroelektrochemie jako nástroj pro odlišení vnitřních tub DWCNT a tenkých SWCNT (cs) In Situ Raman Spectroelectrochemistry as a Tool for the Differentiation of Inner Tubes of Double-Wall Carbon Nanotubes and Thin Single-Wall Carbon Nanotubes (en)
skos:prefLabel	In Situ Raman Spectroelectrochemistry as a Tool for the Differentiation of Inner Tubes of Double-Wall Carbon Nanotubes and Thin Single-Wall Carbon Nanotubes In situ Ramanova spektroelektrochemie jako nástroj pro odlišení vnitřních tub DWCNT a tenkých SWCNT (cs) In Situ Raman Spectroelectrochemistry as a Tool for the Differentiation of Inner Tubes of Double-Wall Carbon Nanotubes and Thin Single-Wall Carbon Nanotubes (en)
skos:notation	RIV/61388955:_____/07:00094977!RIV08-MSM-61388955
http://linked.open.../vavai/riv/strany	9074;9081
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(KJB400400601), P(LC510), Z(AV0Z40400503)
http://linked.open...iv/cisloPeriodika	23
http://linked.open...vai/riv/dodaniDat	2008
http://linked.open...aciTvurceVysledku	Kavan, Ladislav Kalbáč, 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	Ústav fyzikální chemie J. Heyrovského AV ČR, v.v.i.
http://linked.open...dnocenehoVysledku	425842
http://linked.open...ai/riv/idVysledku	RIV/61388955:_____/07:00094977
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	spectroelectrochemistry; Raman spectroelectrochemistry; carbon nanotube (en)
http://linked.open.../riv/klicoveSlovo	Raman spectroelectrochemistry spectroelectrochemistry carbon nanotube
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[987CB4121BD9]
http://linked.open...i/riv/nazevZdroje	Analytical Chemistry
http://linked.open...in/vavai/riv/obor	CG
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	3 (xsd:int)
http://linked.open...vavai/riv/projekt	Center of nanotechnology and materials for nanoelectronics Electrochemical and spectroelectrochemical study of carbon nanostructures
http://linked.open...UplatneniVysledku	2007
http://linked.open...v/svazekPeriodika	79
http://linked.open...iv/tvurceVysledku	Dunsch, L. Kalbáč, Martin Kavan, Ladislav
http://linked.open...n/vavai/riv/zamer	Struktura, reaktivita a dynamika molekulárních a biomolekulárních systémů: teorie, experiment, aplikace
issn	0003-2700
number of pages	8 (xsd:int)
is http://linked.open...avai/riv/vysledek of	In Situ Raman Spectroelectrochemistry as a Tool for the Differentiation of Inner Tubes of Double-Wall Carbon Nanotubes and Thin Single-Wall Carbon Nanotubes In Situ Raman Spectroelectrochemistry as a Tool for the Differentiation of Inner Tubes of Double-Wall Carbon Nanotubes and Thin Single-Wall Carbon Nanotubes In Situ Raman Spectroelectrochemistry as a Tool for the Differentiation of Inner Tubes of Double-Wall Carbon Nanotubes and Thin Single-Wall Carbon Nanotubes

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