Syntéza uhlíkových nanotrubek v mikrovlnném pochodňovém výboji za atmosferického tlaku

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F06%3A00015729" target="_blank" >RIV/00216224:14310/06:00015729 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68081731:_____/06:00022823

Výsledek na webu

—

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

Carbon nanotubes synthesis in microwave plasma torch at atmospheric pressure

Popis výsledku v původním jazyce

Well aligned multi-walled carbon nanotubes were synthesized at atmospheric pressure using a microwave plasma torch on silicon substrates with silicon oxide buffer layer and catalyst overlayer in the mixture of argon, hydrogen and methane. Iron or nickelwas used as catalysts. The optimum substrate temperature for the deposition on Si/SiO2/Fe substrates was about 970 K. In this case SEM micrographs of the deposits revealed a presence of vertically aligned nanotubes with the diameters around 15 nm. TEM micrographs showed a presence of amorphous carbon particles in the samples and some defects in the wall structure of the produced nanotubes. In Raman spectra two peaks at 1332 and 1584 cm-1 were observed. The CNTs were also synthesized on the substrates without SiO2 buffer layer but their quality was lower. The synthesis with Ni instead of Fe catalyst required lower temperature and the alignment of the nanotubes was worse. The deposition process was monitored by optical emission spectrosco

Název v anglickém jazyce

Carbon nanotubes synthesis in microwave plasma torch at atmospheric pressure

Popis výsledku anglicky

Well aligned multi-walled carbon nanotubes were synthesized at atmospheric pressure using a microwave plasma torch on silicon substrates with silicon oxide buffer layer and catalyst overlayer in the mixture of argon, hydrogen and methane. Iron or nickelwas used as catalysts. The optimum substrate temperature for the deposition on Si/SiO2/Fe substrates was about 970 K. In this case SEM micrographs of the deposits revealed a presence of vertically aligned nanotubes with the diameters around 15 nm. TEM micrographs showed a presence of amorphous carbon particles in the samples and some defects in the wall structure of the produced nanotubes. In Raman spectra two peaks at 1332 and 1584 cm-1 were observed. The CNTs were also synthesized on the substrates without SiO2 buffer layer but their quality was lower. The synthesis with Ni instead of Fe catalyst required lower temperature and the alignment of the nanotubes was worse. The deposition process was monitored by optical emission spectrosco

Druh

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

CEP obor

BL - Fyzika plasmatu a výboje v plynech

OECD FORD obor

—

Projekt

<a href="/cs/project/GA202%2F05%2F0607" target="_blank" >GA202/05/0607: Příprava uhlíkových mikro- a nanostruktur plazmovými technologiemi</a><br>

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2006

Kód důvěrnosti údajů

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

Název periodika

MATERIALS SCIENCE AND ENGINEERING: C

ISSN

0928-4931

e-ISSN

—

Svazek periodika

26

Číslo periodika v rámci svazku

5-7

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

5

Strana od-do

1189-1193

Kód UT WoS článku

—

EID výsledku v databázi Scopus

—