Characterization of edge structure and misorientation between
layers of microwave plasma synthesized few-layer graphene
nanosheets

D 2021

Characterization of edge structure and misorientation between layers of microwave plasma synthesized few-layer graphene nanosheets

JURMANOVÁ, Jana, Ondřej JAŠEK, Jozef TOMAN, Dalibor VŠIANSKÝ, Pavel SŤAHEL et. al.

Základní údaje

Originální název

Characterization of edge structure and misorientation between layers of microwave plasma synthesized few-layer graphene nanosheets

Autoři

JURMANOVÁ, Jana (203 Česká republika, garant, domácí), Ondřej JAŠEK (203 Česká republika, domácí), Jozef TOMAN (703 Slovensko, domácí), Dalibor VŠIANSKÝ (203 Česká republika, domácí) a Pavel SŤAHEL (203 Česká republika, domácí)

Vydání

Ostrava, NANOCON 2020: 12th International Conference on Nanomaterials - Research & Application, od s. 529-534, 6 s. 2021

Nakladatel

TANGER Ltd.

Další údaje

Jazyk

angličtina

Typ výsledku

Stať ve sborníku

Obor

10305 Fluids and plasma physics

Stát vydavatele

Česká republika

Utajení

není předmětem státního či obchodního tajemství

Forma vydání

elektronická verze "online"

Odkazy

URL

Kód RIV

RIV/00216224:14310/21:00119105

Organizační jednotka

Přírodovědecká fakulta

ISBN

978-80-87294-98-7

ISSN

DOI

http://dx.doi.org/10.37904/nanocon.2020.3766

UT WoS

000664505500090

Klíčová slova anglicky

Graphene; edge structure; layer orientation; microwave plasma

Štítky

rivok

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 28. 7. 2021 14:35, Mgr. Marie Šípková, DiS.

Anotace

V originále

Topological and edge defects and misalignment of graphene layers in few-layer graphene strongly influence its chemical reactivity and thermal stability. Scanning and transmission electron microscopy and image analysis was used to determine alignment, degree of rotation, between layers in few-layer graphene prepared by decomposition of ethanol in microwave plasma torch at atmospheric pressure. The prepared nanosheets consisted of 1 to 20 layers, with interlayer distance of 0.34 nm, and the main structure was formed by successive growth of individual layers on top of each other. Using FFT, the edges and wrinkles were separated from the graphene layers themselves. The layers were spread out on each one separately and the angles of rotation between them were measured. The rotation angle between layer was from 20 to 30 degrees and the high quality graphene nanosheets, Raman bands 2D/G ratio of 1.6 and D/G ratio of 0.5, exhibited predominantly closed edges and opened edges were mostly found in the layers forming islands on the main structure. Graphene nanosheets remain fully stable in vacuum up to 1000 °C and thermogravimetric analysis showed complete burnout of the sample in synthetic air at 770 °C with more defective sample exhibiting higher weight loss between 400 and 700 °C.

Návaznosti

GA18-08520S, projekt VaV

Název: Studium procesu nukleace dvourozměrných uhlíkových nanostruktur v mikrovlnném plazmatu

Investor: Grantová agentura ČR, Studium procesu nukleace dvourozměrných uhlíkových nanostruktur v mikrovlnném plazmatu

LM2018097, projekt VaV

Název: Centrum výzkumu a vývoje plazmatu a nanotechnologických povrchových úprav (Akronym: CEPLANT)

Investor: Ministerstvo školství, mládeže a tělovýchovy ČR, R&D centre for plasma and nanotechnology surface modifications

90110, velká výzkumná infrastruktura

Název: CzechNanoLab

Citovat

JURMANOVÁ, Jana, Ondřej JAŠEK, Jozef TOMAN, Dalibor VŠIANSKÝ a Pavel SŤAHEL. Characterization of edge structure and misorientation between layers of microwave plasma synthesized few-layer graphene nanosheets. Online. In NANOCON 2020: 12th International Conference on Nanomaterials - Research & Application. Ostrava: TANGER Ltd., 2021, s. 529-534. ISBN 978-80-87294-98-7. Dostupné z: https://dx.doi.org/10.37904/nanocon.2020.3766.

@inproceedings{1784085,
   author = {Jurmanová, Jana and Jašek, Ondřej and Toman, Jozef and Všianský, Dalibor and Sťahel, Pavel},
   address = {Ostrava},
   booktitle = {NANOCON 2020: 12th International Conference on Nanomaterials - Research & Application},
   doi = {http://dx.doi.org/10.37904/nanocon.2020.3766},
   keywords = {Graphene; edge structure; layer orientation; microwave plasma},
   howpublished = {elektronická verze "online"},
   language = {eng},
   location = {Ostrava},
   isbn = {978-80-87294-98-7},
   pages = {529-534},
   publisher = {TANGER Ltd.},
   title = {Characterization of edge structure and misorientation between layers of microwave plasma synthesized few-layer graphene nanosheets},
   url = {https://doi.org/10.37904/nanocon.2020.3766},
   year = {2021}
}

TY  - JOUR
ID  - 1784085
AU  - Jurmanová, Jana - Jašek, Ondřej - Toman, Jozef - Všianský, Dalibor - Sťahel, Pavel
PY  - 2021
TI  - Characterization of edge structure and misorientation between layers of microwave plasma synthesized few-layer graphene nanosheets
PB  - TANGER Ltd.
CY  - Ostrava
SN  - 9788087294987
KW  - Graphene
KW  - edge structure
KW  - layer orientation
KW  - microwave plasma
UR  - https://doi.org/10.37904/nanocon.2020.3766
N2  - Topological and edge defects and misalignment of graphene layers in few-layer graphene strongly influence its chemical reactivity and thermal stability. Scanning and transmission electron microscopy and image analysis was used to determine alignment, degree of rotation, between layers in few-layer graphene prepared by decomposition of ethanol in microwave plasma torch at atmospheric pressure. The prepared nanosheets consisted of 1 to 20 layers, with interlayer distance of 0.34 nm, and the main structure was formed by successive growth of individual layers on top of each other. Using FFT, the edges and wrinkles were separated from the graphene layers themselves. The layers were spread out on each one separately and the angles of rotation between them were measured. The rotation angle between layer was from 20 to 30 degrees and the high quality graphene nanosheets, Raman bands 2D/G ratio of 1.6 and D/G ratio of 0.5, exhibited predominantly closed edges and opened edges were mostly found in the layers forming islands on the main structure. Graphene nanosheets remain fully stable in vacuum up to 1000 °C and thermogravimetric analysis showed complete burnout of the sample in synthetic air at 770 °C with more defective sample exhibiting higher weight loss between 400 and 700 °C.
ER  -

JURMANOVÁ, Jana, Ondřej JAŠEK, Jozef TOMAN, Dalibor VŠIANSKÝ a Pavel SŤAHEL. Characterization of edge structure and misorientation between layers of microwave plasma synthesized few-layer graphene nanosheets. Online. In \textit{NANOCON 2020: 12th International Conference on Nanomaterials - Research \&{} Application}. Ostrava: TANGER Ltd., 2021, s.~529-534. ISBN~978-80-87294-98-7. Dostupné z: https://dx.doi.org/10.37904/nanocon.2020.3766.

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