On the transition of reaction pathway during microwave plasma
gas-phase synthesis of graphene nanosheets: From amorphous to
highly crystalline structure

J 2021

On the transition of reaction pathway during microwave plasma gas-phase synthesis of graphene nanosheets: From amorphous to highly crystalline structure

TOMAN, Jozef, Ondřej JAŠEK, Miroslav ŠNÍRER, David PAVLIŇÁK, Zdeněk NAVRÁTIL et. al.

Základní údaje

Originální název

On the transition of reaction pathway during microwave plasma gas-phase synthesis of graphene nanosheets: From amorphous to highly crystalline structure

Autoři

TOMAN, Jozef (703 Slovensko, garant, domácí), Ondřej JAŠEK (203 Česká republika, domácí), Miroslav ŠNÍRER (703 Slovensko, domácí), David PAVLIŇÁK (203 Česká republika, domácí), Zdeněk NAVRÁTIL (203 Česká republika, domácí), Jana JURMANOVÁ (203 Česká republika, domácí), Stanislav CHUDJÁK, František KRČMA, Vít KUDRLE (203 Česká republika, domácí) a Jan MICHALIČKA

Vydání

Plasma processes and polymers, Weinheim, Wiley-VCH, 2021, 1612-8850

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10305 Fluids and plasma physics

Stát vydavatele

Německo

Utajení

není předmětem státního či obchodního tajemství

Odkazy

URL

Impakt faktor

Impact factor: 3.877

Kód RIV

RIV/00216224:14310/21:00119049

Organizační jednotka

Přírodovědecká fakulta

DOI

http://dx.doi.org/10.1002/ppap.202100008

UT WoS

000656367600001

Klíčová slova anglicky

admixture; graphene nanosheets; microwave plasma; nucleation; plasma synthesis

Štítky

rivok

Příznaky

Mezinárodní význam, Recenzováno

Změněno: 27. 2. 2024 13:58, Mgr. Marie Šípková, DiS.

Anotace

V originále

Fourier-transform infrared spectroscopy and proton-transfer-reaction–mass spectrometry are used in a complementary way to study gas-phase processes during decomposition of ethanol in a microwave plasma torch. Decomposition products (C, C2 and simple hydrocarbons) reassemble into higher hydrocarbons and graphene nuclei and further grow into graphene nanosheets (GNS). Depending on microwave power, ethanol flow rate and molecular gas admixture, the material structure changes from amorphous to crystalline. The presence of C2n + 1Hy species was found to be responsible for the formation of defects in the GNS structure. O2 and H2 admixtures change the gas temperature axial profile and consequently modify reaction pathways influencing growth and production rate of GNS. Determination of reaction pathway selectivity enables us to predict whether high-quality or defective GNS are produced.

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

90097, velká výzkumná infrastruktura

Název: CEPLANT

90110, velká výzkumná infrastruktura

Název: CzechNanoLab

Citovat

TOMAN, Jozef, Ondřej JAŠEK, Miroslav ŠNÍRER, David PAVLIŇÁK, Zdeněk NAVRÁTIL, Jana JURMANOVÁ, Stanislav CHUDJÁK, František KRČMA, Vít KUDRLE a Jan MICHALIČKA. On the transition of reaction pathway during microwave plasma gas-phase synthesis of graphene nanosheets: From amorphous to highly crystalline structure. Plasma processes and polymers. Weinheim: Wiley-VCH, 2021, roč. 18, č. 8, s. "e2100008", 22 s. ISSN 1612-8850. Dostupné z: https://dx.doi.org/10.1002/ppap.202100008.

@article{1781679,
   author = {Toman, Jozef and Jašek, Ondřej and Šnírer, Miroslav and Pavliňák, David and Navrátil, Zdeněk and Jurmanová, Jana and Chudják, Stanislav and Krčma, František and Kudrle, Vít and Michalička, Jan},
   article_location = {Weinheim},
   article_number = {8},
   doi = {http://dx.doi.org/10.1002/ppap.202100008},
   keywords = {admixture; graphene nanosheets; microwave plasma; nucleation; plasma synthesis},
   language = {eng},
   issn = {1612-8850},
   journal = {Plasma processes and polymers},
   title = {On the transition of reaction pathway during microwave plasma gas-phase synthesis of graphene nanosheets: From amorphous to highly crystalline structure},
   url = {https://doi.org/10.1002/ppap.202100008},
   volume = {18},
   year = {2021}
}

TY  - JOUR
ID  - 1781679
AU  - Toman, Jozef - Jašek, Ondřej - Šnírer, Miroslav - Pavliňák, David - Navrátil, Zdeněk - Jurmanová, Jana - Chudják, Stanislav - Krčma, František - Kudrle, Vít - Michalička, Jan
PY  - 2021
TI  - On the transition of reaction pathway during microwave plasma gas-phase synthesis of graphene nanosheets: From amorphous to highly crystalline structure
JF  - Plasma processes and polymers
VL  - 18
IS  - 8
SP  - "e2100008"
EP  - "e2100008"
PB  - Wiley-VCH
SN  - 16128850
KW  - admixture
KW  - graphene nanosheets
KW  - microwave plasma
KW  - nucleation
KW  - plasma synthesis
UR  - https://doi.org/10.1002/ppap.202100008
N2  - Fourier-transform infrared spectroscopy and proton-transfer-reaction–mass spectrometry are used in a complementary way to study gas-phase processes during decomposition of ethanol in a microwave plasma torch. Decomposition products (C, C2 and simple hydrocarbons) reassemble into higher hydrocarbons and graphene nuclei and further grow into graphene nanosheets (GNS). Depending on microwave power, ethanol flow rate and molecular gas admixture, the material structure changes from amorphous to crystalline. The presence of C2n + 1Hy species was found to be responsible for the formation of defects in the GNS structure. O2 and H2 admixtures change the gas temperature axial profile and consequently modify reaction pathways influencing growth and production rate of GNS. Determination of reaction pathway selectivity enables us to predict whether high-quality or defective GNS are produced.
ER  -

TOMAN, Jozef, Ondřej JAŠEK, Miroslav ŠNÍRER, David PAVLIŇÁK, Zdeněk NAVRÁTIL, Jana JURMANOVÁ, Stanislav CHUDJÁK, František KRČMA, Vít KUDRLE a Jan MICHALIČKA. On the transition of reaction pathway during microwave plasma gas-phase synthesis of graphene nanosheets: From amorphous to highly crystalline structure. \textit{Plasma processes and polymers}. Weinheim: Wiley-VCH, 2021, roč.~18, č.~8, s.~''e2100008'', 22 s. ISSN~1612-8850. Dostupné z: https://dx.doi.org/10.1002/ppap.202100008.

Podrobný výpis o publikaci