Dopování C60 fullerenových peapodů pomocí lithia: Ramanská a in-situ Raman spektroelektrochemická studie

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F08%3A00310742" target="_blank" >RIV/61388955:_____/08:00310742 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Doping of C60 fullerene peapods with lithium: Raman spectroscopic and Raman spectroelectrochemical studies

Popis výsledku v původním jazyce

Raman spectroscopy and in-situ Raman spectroelectrochemistry were applied to study the lithium vapor doping of C60@SWCNTs (peapods). A strong degree of doping was proved by the vanishing of the SWCNT?s radial breathing mode (RBM) and by the attenuation of the tangential (TG) band intensity by two orders of magnitude. This Li doping causes a downshift of the Ag(2) mode of the intratubular C60 by 27 cm-1 and changes the resonance condition of encapsulated fullerene. In contrast to potassium vapor doping,the strong downshift of the frequency of the TG band has not been found 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 Ag(2) mode of the intratubular fullerene is not resolved after the contact of the Li-doped sample with water.

Název v anglickém jazyce

Doping of C60 fullerene peapods with lithium: Raman spectroscopic and Raman spectroelectrochemical studies

Popis výsledku anglicky

Raman spectroscopy and in-situ Raman spectroelectrochemistry were applied to study the lithium vapor doping of C60@SWCNTs (peapods). A strong degree of doping was proved by the vanishing of the SWCNT?s radial breathing mode (RBM) and by the attenuation of the tangential (TG) band intensity by two orders of magnitude. This Li doping causes a downshift of the Ag(2) mode of the intratubular C60 by 27 cm-1 and changes the resonance condition of encapsulated fullerene. In contrast to potassium vapor doping,the strong downshift of the frequency of the TG band has not been found 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 Ag(2) mode of the intratubular fullerene is not resolved after the contact of the Li-doped sample with water.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CG - Elektrochemie

OECD FORD obor

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Projekt

<a href="/cs/project/KJB400400601" target="_blank" >KJB400400601: Elektrochemická a spektroelektrochemická studie uhlíkových nanostruktur</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2008

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Chemistry - A European Journal

ISSN

0947-6539

e-ISSN

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Svazek periodika

14

Číslo periodika v rámci svazku

20

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

6

Strana od-do

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Kód UT WoS článku

000257822500027

EID výsledku v databázi Scopus

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