Ozone Sensing Based on Palladium Decorated Carbon Nanotubes

Multiwall carbon nanotubes (MWCNTs) were easily and efficiently decorated with Pd nanoparticles through a vapor-phase impregnation-decomposition method starting from palladium acetylacetonates. The sensor device consisted on a film of sensitive material (MWCNTs-Pd) deposited by drop coating on plati...

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Autores principales: Colindres, Selene Capula, Aguir, Khalifa, Sodi, Felipe Cervantes, Vargas, Luis Villa, Moncayo Salazar, José A., Febles, Vicente Garibay
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2014
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4029722/
https://www.ncbi.nlm.nih.gov/pubmed/24736133
http://dx.doi.org/10.3390/s140406806
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author Colindres, Selene Capula
Aguir, Khalifa
Sodi, Felipe Cervantes
Vargas, Luis Villa
Moncayo Salazar, José A.
Febles, Vicente Garibay
author_facet Colindres, Selene Capula
Aguir, Khalifa
Sodi, Felipe Cervantes
Vargas, Luis Villa
Moncayo Salazar, José A.
Febles, Vicente Garibay
author_sort Colindres, Selene Capula
collection PubMed
description Multiwall carbon nanotubes (MWCNTs) were easily and efficiently decorated with Pd nanoparticles through a vapor-phase impregnation-decomposition method starting from palladium acetylacetonates. The sensor device consisted on a film of sensitive material (MWCNTs-Pd) deposited by drop coating on platinum interdigitated electrodes on a SiO(2) substrate. The sensor exhibited a resistance change to ozone (O(3)) with a response time of 60 s at different temperatures and the capability of detecting concentrations up to 20 ppb. The sensor shows the best response when exposed to O(3) at 120 °C. The device shows a very reproducible sensor performance, with high repeatability, full recovery and efficient response.
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spelling pubmed-40297222014-05-22 Ozone Sensing Based on Palladium Decorated Carbon Nanotubes Colindres, Selene Capula Aguir, Khalifa Sodi, Felipe Cervantes Vargas, Luis Villa Moncayo Salazar, José A. Febles, Vicente Garibay Sensors (Basel) Article Multiwall carbon nanotubes (MWCNTs) were easily and efficiently decorated with Pd nanoparticles through a vapor-phase impregnation-decomposition method starting from palladium acetylacetonates. The sensor device consisted on a film of sensitive material (MWCNTs-Pd) deposited by drop coating on platinum interdigitated electrodes on a SiO(2) substrate. The sensor exhibited a resistance change to ozone (O(3)) with a response time of 60 s at different temperatures and the capability of detecting concentrations up to 20 ppb. The sensor shows the best response when exposed to O(3) at 120 °C. The device shows a very reproducible sensor performance, with high repeatability, full recovery and efficient response. MDPI 2014-04-14 /pmc/articles/PMC4029722/ /pubmed/24736133 http://dx.doi.org/10.3390/s140406806 Text en © 2014 by the authors; licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/).
spellingShingle Article
Colindres, Selene Capula
Aguir, Khalifa
Sodi, Felipe Cervantes
Vargas, Luis Villa
Moncayo Salazar, José A.
Febles, Vicente Garibay
Ozone Sensing Based on Palladium Decorated Carbon Nanotubes
title Ozone Sensing Based on Palladium Decorated Carbon Nanotubes
title_full Ozone Sensing Based on Palladium Decorated Carbon Nanotubes
title_fullStr Ozone Sensing Based on Palladium Decorated Carbon Nanotubes
title_full_unstemmed Ozone Sensing Based on Palladium Decorated Carbon Nanotubes
title_short Ozone Sensing Based on Palladium Decorated Carbon Nanotubes
title_sort ozone sensing based on palladium decorated carbon nanotubes
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4029722/
https://www.ncbi.nlm.nih.gov/pubmed/24736133
http://dx.doi.org/10.3390/s140406806
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