Highly selective NO2 gas sensors made of MWCNTs and WO3 hybrid layers

E Espinosa; R Ionescu; E Llobet; Alexandre Felten; Carla Bittencourt Papaleo Montes; E Sotter; Z Topalian; P Heszler; Jean-Jacques Pireaux; X Correig

doi:10.1149/1.2667855

Highly selective NO₂ gas sensors made of MWCNTs and WO₃ hybrid layers

E Espinosa, R Ionescu, E Llobet, Alexandre Felten, Carla Bittencourt Papaleo Montes, E Sotter, Z Topalian, P Heszler, Jean-Jacques Pireaux, X Correig

Namur Research Institute for Life Sciences

Research output: Contribution to journal › Article › peer-review

Abstract

Hybrid gas sensors were fabricated by means of multiwalled carbon nanotubes (MWCNTs) covered by deposited by an advanced reactive gas deposition method. In order to increase the dispersion of nanotubes and attach functional groups to their surface so as to enhance their compatibility with other compounds, the MWCNTs were functionalized in two different radio-frequency plasmas (oxygen or hydrogen) under different operating conditions. X-ray photoelectron spectroscopy, scanning electron microscopy, and atomic force microscopy were employed to analyze the composition and morphology of the hybrid films. Gas sensors based on such films were found to be very selective to when operated at room temperature. No cross-sensitivity was found to other hazardous gases such as or CO.

Original language	English
Pages (from-to)	j141-j149
Journal	Journal of the electrochemical society
Volume	154
Issue number	5
DOIs	https://doi.org/10.1149/1.2667855
Publication status	Published - 2007

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10.1149/1.2667855

Synthesis, Irradiation and Analysis of Materials (SIAM)
Louette, P. (Manager), Colaux, J. (Manager), Felten, A. (Manager), Tabarrant, T. (Operator), COME, F. (Operator) & Debarsy, P.-L. (Manager)
Technological Platform Synthesis, Irradiation and Analysis of Materials
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title = "Highly selective NO2 gas sensors made of MWCNTs and WO3 hybrid layers",

abstract = "Hybrid gas sensors were fabricated by means of multiwalled carbon nanotubes (MWCNTs) covered by deposited by an advanced reactive gas deposition method. In order to increase the dispersion of nanotubes and attach functional groups to their surface so as to enhance their compatibility with other compounds, the MWCNTs were functionalized in two different radio-frequency plasmas (oxygen or hydrogen) under different operating conditions. X-ray photoelectron spectroscopy, scanning electron microscopy, and atomic force microscopy were employed to analyze the composition and morphology of the hybrid films. Gas sensors based on such films were found to be very selective to when operated at room temperature. No cross-sensitivity was found to other hazardous gases such as or CO.",

author = "E Espinosa and R Ionescu and E Llobet and Alexandre Felten and {Bittencourt Papaleo Montes}, Carla and E Sotter and Z Topalian and P Heszler and Jean-Jacques Pireaux and X Correig",

year = "2007",

doi = "10.1149/1.2667855",

language = "English",

volume = "154",

pages = "j141--j149",

journal = "Journal of the electrochemical society",

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T1 - Highly selective NO2 gas sensors made of MWCNTs and WO3 hybrid layers

AU - Espinosa, E

AU - Ionescu, R

AU - Llobet, E

AU - Felten, Alexandre

AU - Bittencourt Papaleo Montes, Carla

AU - Sotter, E

AU - Topalian, Z

AU - Heszler, P

AU - Pireaux, Jean-Jacques

AU - Correig, X

PY - 2007

Y1 - 2007

N2 - Hybrid gas sensors were fabricated by means of multiwalled carbon nanotubes (MWCNTs) covered by deposited by an advanced reactive gas deposition method. In order to increase the dispersion of nanotubes and attach functional groups to their surface so as to enhance their compatibility with other compounds, the MWCNTs were functionalized in two different radio-frequency plasmas (oxygen or hydrogen) under different operating conditions. X-ray photoelectron spectroscopy, scanning electron microscopy, and atomic force microscopy were employed to analyze the composition and morphology of the hybrid films. Gas sensors based on such films were found to be very selective to when operated at room temperature. No cross-sensitivity was found to other hazardous gases such as or CO.

AB - Hybrid gas sensors were fabricated by means of multiwalled carbon nanotubes (MWCNTs) covered by deposited by an advanced reactive gas deposition method. In order to increase the dispersion of nanotubes and attach functional groups to their surface so as to enhance their compatibility with other compounds, the MWCNTs were functionalized in two different radio-frequency plasmas (oxygen or hydrogen) under different operating conditions. X-ray photoelectron spectroscopy, scanning electron microscopy, and atomic force microscopy were employed to analyze the composition and morphology of the hybrid films. Gas sensors based on such films were found to be very selective to when operated at room temperature. No cross-sensitivity was found to other hazardous gases such as or CO.

U2 - 10.1149/1.2667855

DO - 10.1149/1.2667855

M3 - Article

SN - 0013-4651

VL - 154

SP - j141-j149

JO - Journal of the electrochemical society

JF - Journal of the electrochemical society

IS - 5

ER -

Highly selective NO2 gas sensors made of MWCNTs and WO3 hybrid layers

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Highly selective NO₂ gas sensors made of MWCNTs and WO₃ hybrid layers