THE INFLUENCE OF GAS ADMIXTURES ON THE SYNTHESIS OF GRAPHENE NANOSHEETS IN ARGON MICROWAVE PLASMA TORCH DISCHARGE

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F17%3A00097937" target="_blank" >RIV/00216224:14310/17:00097937 - 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

THE INFLUENCE OF GAS ADMIXTURES ON THE SYNTHESIS OF GRAPHENE NANOSHEETS IN ARGON MICROWAVE PLASMA TORCH DISCHARGE

Popis výsledku v původním jazyce

In this work possibility of the synthesis of two-dimensional graphene nanosheets in gas phase was studied. We used microwave plasma torch discharge (2.45 GHz, 210 W) operating at atmospheric pressure conditions to synthesize carbon nanosheets with rectangular shape and typical size of hundreds of nanometres. The torch discharge was ignited in argon flowing through the central channel of the nozzle. Liquid ethanol, whose vapours were led to the discharge by carrier gas - argon, was selected as a precursor. The mixture of ethanol vapour, argon and oxygen or hydrogen was introduced to the discharge through outer channel of the nozzle. Decomposition of ethanol vapours, at specific deposition conditions, led to the synthesis of graphene nanosheets. The synthesized material was collected on the silicon substrate placed in the sample holder situated few centimetres above the discharge. The influence of different amount of oxygen or hydrogen in the gas mixture on the properties of synthesised graphene nanosheets was investigated. Such prepared samples were analysed by scanning electron microscopy, Raman spectroscopy and energy-dispersive X-ray spectroscopy (EDX). The discharge was examined using optical emission spectroscopy.

Název v anglickém jazyce

THE INFLUENCE OF GAS ADMIXTURES ON THE SYNTHESIS OF GRAPHENE NANOSHEETS IN ARGON MICROWAVE PLASMA TORCH DISCHARGE

Popis výsledku anglicky

In this work possibility of the synthesis of two-dimensional graphene nanosheets in gas phase was studied. We used microwave plasma torch discharge (2.45 GHz, 210 W) operating at atmospheric pressure conditions to synthesize carbon nanosheets with rectangular shape and typical size of hundreds of nanometres. The torch discharge was ignited in argon flowing through the central channel of the nozzle. Liquid ethanol, whose vapours were led to the discharge by carrier gas - argon, was selected as a precursor. The mixture of ethanol vapour, argon and oxygen or hydrogen was introduced to the discharge through outer channel of the nozzle. Decomposition of ethanol vapours, at specific deposition conditions, led to the synthesis of graphene nanosheets. The synthesized material was collected on the silicon substrate placed in the sample holder situated few centimetres above the discharge. The influence of different amount of oxygen or hydrogen in the gas mixture on the properties of synthesised graphene nanosheets was investigated. Such prepared samples were analysed by scanning electron microscopy, Raman spectroscopy and energy-dispersive X-ray spectroscopy (EDX). The discharge was examined using optical emission spectroscopy.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

10305 - Fluids and plasma physics (including surface physics)

Projekt

<a href="/cs/project/LO1411" target="_blank" >LO1411: Rozvoj centra pro nízkonákladové plazmové a nanotechnologické povrchové úpravy</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název statě ve sborníku

8TH INTERNATIONAL CONFERENCE ON NANOMATERIALS - RESEARCH &amp; APPLICATION (NANOCON 2016)

ISBN

9788087294710

ISSN

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e-ISSN

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Počet stran výsledku

5

Strana od-do

122-126

Název nakladatele

TANGER LTD

Místo vydání

Ostrava

Místo konání akce

Brno, CZECH REPUBLIC

Datum konání akce

19. 10. 2016

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000410656100020