Gas sensors based on multiwall carbon nanotubes decorated with tin oxide nanoclusters

R. Leghrib, R. Pavelko, A. Felten, A. Vasiliev, C. Cané, I. Gràcia, J.-J. Pireaux, E. Llobet

Résultats de recherche: Contribution à un journal/une revueArticle

Résumé

Hybrid nanomaterials based on oxygen plasma treated multiwall carbon nanotubes decorated with tin oxide nanoclusters were synthesised by the precipitation of a SnO colloidal suspension in the presence of carbon nanotubes dispersed in the mother solution of precursor tin (II) acetate in a water free acetic acid. TEM analysis revealed that the size of tin oxide nanoclusters anchored at the carbon nanotube sidewalls is about 5 nm. Hybrid nanomaterials with different carbon nanotube to tin oxide ratios were prepared and their gas sensing properties when operated at room temperature and at 150 °C were investigated and compared against the properties of pure tin oxide or pure oxygen plasma treated multiwall carbon nanotube sensors. When an appropriate ratio between the amount of plasma treated nanotubes and tin oxide precursors is employed, hybrid sensors show superior performance in the detection of nitrogen dioxide in the ppb range and carbon monoxide in the low ppm range. Furthermore, these optimised sensors show a significantly reduced moisture cross-sensitivity. Detection mechanisms are discussed.
langue originaleAnglais
Pages (de - à)411-416
Nombre de pages6
journalSensors and Actuators B: Chemical
Volume145
Numéro de publication1
Les DOIs
étatPublié - 4 mars 2010

Empreinte digitale

Carbon Nanotubes
Nanoclusters
nanoclusters
Tin oxides
Chemical sensors
tin oxides
Carbon nanotubes
carbon nanotubes
sensors
gases
oxygen plasma
Plasmas
Nanostructured materials
Hybrid sensors
Oxygen
Nitrogen Dioxide
nitrogen dioxide
Tin
Sensors
Carbon Monoxide

Citer ceci

Leghrib, R. ; Pavelko, R. ; Felten, A. ; Vasiliev, A. ; Cané, C. ; Gràcia, I. ; Pireaux, J.-J. ; Llobet, E. / Gas sensors based on multiwall carbon nanotubes decorated with tin oxide nanoclusters. Dans: Sensors and Actuators B: Chemical . 2010 ; Vol 145, Numéro 1. p. 411-416.
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Gas sensors based on multiwall carbon nanotubes decorated with tin oxide nanoclusters. / Leghrib, R.; Pavelko, R.; Felten, A.; Vasiliev, A.; Cané, C.; Gràcia, I.; Pireaux, J.-J.; Llobet, E.

Dans: Sensors and Actuators B: Chemical , Vol 145, Numéro 1, 04.03.2010, p. 411-416.

Résultats de recherche: Contribution à un journal/une revueArticle

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AU - Pavelko, R.

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