MoS2–carbon nanotube hybrid material growth and gas sensing

Geetanjali Deokar, Peter Vancso, Raul Arenal, Florent Ravaux, Juan Casanova-Cháfer, Eduard Llobet, Anna Makarova, Denis Vyalikh, Claudia Struzzi, Philippe Lambin, Mustapha Jouiad, Jean-François Colomer

Résultats de recherche: Contribution à un journal/une revueArticle

Résumé

Hexagonal-shaped nanoplates (HNPs) of MoS2 on vertically aligned carbon
nanotubes (CNTs) over a patterned area (a circular area of 1 cm2 diameter)
are produced by chemical vapor deposition technique. With an optimized
initial Mo film thickness, a uniform coverage of MoS2 HNPs with a thickness
around 20 nm is achieved. The results confirm that the CNT template plays an
important role in the MoS2 HNPs growth. Each MoS2 HNP consists of abun-
dant exposed edges, interesting for sensing and catalysis applications. High
crystallinity and quality of the as-produced material are revealed by X-ray pho-
toelectron and Raman spectroscopies. Furthermore, NO2 gas-sensing studies
show better sensitivity and recovery for MoS2/CNT samples as compared to
pristine CNTs. The detection of NO2 gas in a few tens of parts per million to
a few hundreds of parts per billion range, at room temperature, is achieved.
Density-functional theory calculation indicates that the exposed edges of MoS2
play a significant role in the NO2 sensing as compared to horizontally aligned
MoS2 layers. The present report can promote the research toward the fabrica-
tion of efficient and reliable MoS2-based hybrid materials for toxic gas-sensing
applications for air quality monitoring in various environments.
langueAnglais
Numéro d'article1700801
Nombre de pages10
journalAdvanced Materials Interfaces
Volume4
Numéro24
Les DOIs
étatPublié - 27 sept. 2017

Empreinte digitale

Carbon Nanotubes
Hybrid materials
Carbon nanotubes
Gases
Poisons
Air quality
Catalysis
Density functional theory
Film thickness
Raman spectroscopy
Chemical vapor deposition
Recovery
X rays
Monitoring
Temperature

Citer ceci

Deokar, Geetanjali ; Vancso, Peter ; Arenal, Raul ; Ravaux, Florent ; Casanova-Cháfer, Juan ; Llobet, Eduard ; Makarova, Anna ; Vyalikh, Denis ; Struzzi, Claudia ; Lambin, Philippe ; Jouiad, Mustapha ; Colomer, Jean-François. / MoS2–carbon nanotube hybrid material growth and gas sensing. Dans: Advanced Materials Interfaces. 2017 ; Vol 4, Numéro 24.
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abstract = "Hexagonal-shaped nanoplates (HNPs) of MoS2 on vertically aligned carbon nanotubes (CNTs) over a patterned area (a circular area of 1 cm2 diameter) are produced by chemical vapor deposition technique. With an optimized initial Mo film thickness, a uniform coverage of MoS2 HNPs with a thickness around 20 nm is achieved. The results confirm that the CNT template plays an important role in the MoS2 HNPs growth. Each MoS2 HNP consists of abun-dant exposed edges, interesting for sensing and catalysis applications. High crystallinity and quality of the as-produced material are revealed by X-ray pho-toelectron and Raman spectroscopies. Furthermore, NO2 gas-sensing studies show better sensitivity and recovery for MoS2/CNT samples as compared to pristine CNTs. The detection of NO2 gas in a few tens of parts per million to a few hundreds of parts per billion range, at room temperature, is achieved. Density-functional theory calculation indicates that the exposed edges of MoS2 play a significant role in the NO2 sensing as compared to horizontally aligned MoS2 layers. The present report can promote the research toward the fabrica-tion of efficient and reliable MoS2-based hybrid materials for toxic gas-sensing applications for air quality monitoring in various environments.",
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Deokar, G, Vancso, P, Arenal, R, Ravaux, F, Casanova-Cháfer, J, Llobet, E, Makarova, A, Vyalikh, D, Struzzi, C, Lambin, P, Jouiad, M & Colomer, J-F 2017, 'MoS2–carbon nanotube hybrid material growth and gas sensing' Advanced Materials Interfaces, VOL. 4, Numéro 24, 1700801. DOI: 10.1002/admi.201700801

MoS2–carbon nanotube hybrid material growth and gas sensing. / Deokar, Geetanjali; Vancso, Peter; Arenal, Raul; Ravaux, Florent; Casanova-Cháfer, Juan; Llobet, Eduard; Makarova, Anna; Vyalikh, Denis; Struzzi, Claudia ; Lambin, Philippe; Jouiad, Mustapha; Colomer, Jean-François.

Dans: Advanced Materials Interfaces, Vol 4, Numéro 24, 1700801, 27.09.2017.

Résultats de recherche: Contribution à un journal/une revueArticle

TY - JOUR

T1 - MoS2–carbon nanotube hybrid material growth and gas sensing

AU - Deokar,Geetanjali

AU - Vancso,Peter

AU - Arenal,Raul

AU - Ravaux,Florent

AU - Casanova-Cháfer, Juan

AU - Llobet,Eduard

AU - Makarova,Anna

AU - Vyalikh,Denis

AU - Struzzi,Claudia

AU - Lambin,Philippe

AU - Jouiad,Mustapha

AU - Colomer,Jean-François

PY - 2017/9/27

Y1 - 2017/9/27

N2 - Hexagonal-shaped nanoplates (HNPs) of MoS2 on vertically aligned carbon nanotubes (CNTs) over a patterned area (a circular area of 1 cm2 diameter) are produced by chemical vapor deposition technique. With an optimized initial Mo film thickness, a uniform coverage of MoS2 HNPs with a thickness around 20 nm is achieved. The results confirm that the CNT template plays an important role in the MoS2 HNPs growth. Each MoS2 HNP consists of abun-dant exposed edges, interesting for sensing and catalysis applications. High crystallinity and quality of the as-produced material are revealed by X-ray pho-toelectron and Raman spectroscopies. Furthermore, NO2 gas-sensing studies show better sensitivity and recovery for MoS2/CNT samples as compared to pristine CNTs. The detection of NO2 gas in a few tens of parts per million to a few hundreds of parts per billion range, at room temperature, is achieved. Density-functional theory calculation indicates that the exposed edges of MoS2 play a significant role in the NO2 sensing as compared to horizontally aligned MoS2 layers. The present report can promote the research toward the fabrica-tion of efficient and reliable MoS2-based hybrid materials for toxic gas-sensing applications for air quality monitoring in various environments.

AB - Hexagonal-shaped nanoplates (HNPs) of MoS2 on vertically aligned carbon nanotubes (CNTs) over a patterned area (a circular area of 1 cm2 diameter) are produced by chemical vapor deposition technique. With an optimized initial Mo film thickness, a uniform coverage of MoS2 HNPs with a thickness around 20 nm is achieved. The results confirm that the CNT template plays an important role in the MoS2 HNPs growth. Each MoS2 HNP consists of abun-dant exposed edges, interesting for sensing and catalysis applications. High crystallinity and quality of the as-produced material are revealed by X-ray pho-toelectron and Raman spectroscopies. Furthermore, NO2 gas-sensing studies show better sensitivity and recovery for MoS2/CNT samples as compared to pristine CNTs. The detection of NO2 gas in a few tens of parts per million to a few hundreds of parts per billion range, at room temperature, is achieved. Density-functional theory calculation indicates that the exposed edges of MoS2 play a significant role in the NO2 sensing as compared to horizontally aligned MoS2 layers. The present report can promote the research toward the fabrica-tion of efficient and reliable MoS2-based hybrid materials for toxic gas-sensing applications for air quality monitoring in various environments.

U2 - 10.1002/admi.201700801

DO - 10.1002/admi.201700801

M3 - Article

VL - 4

JO - Advanced Materials Interfaces

T2 - Advanced Materials Interfaces

JF - Advanced Materials Interfaces

SN - 2196-7350

IS - 24

M1 - 1700801

ER -

Deokar G, Vancso P, Arenal R, Ravaux F, Casanova-Cháfer J, Llobet E et al. MoS2–carbon nanotube hybrid material growth and gas sensing. Advanced Materials Interfaces. 2017 sept. 27;4(24). 1700801. Disponible �, DOI: 10.1002/admi.201700801