TY - JOUR
T1 - Ozone sensing based on palladium decorated carbon nanotubes
AU - Colindres, Selene Capula
AU - Aguir, Khalifa
AU - Sodi, Felipe Cervantes
AU - Vargas, Luis Villa
AU - Salazar, José Moncayo
AU - Febles, Vicente Garibay
PY - 2014/4/14
Y1 - 2014/4/14
N2 - 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 SiO2 substrate. The sensor exhibited a resistance change to ozone (O3) 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 O3 at 120 °C. The device shows a very reproducible sensor performance, with high repeatability, full recovery and efficient response.
AB - 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 SiO2 substrate. The sensor exhibited a resistance change to ozone (O3) 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 O3 at 120 °C. The device shows a very reproducible sensor performance, with high repeatability, full recovery and efficient response.
KW - Gas sensor
KW - Multiwall carbon nanotubes
KW - Ozone
KW - Pd nanoparticles
UR - http://www.scopus.com/inward/record.url?scp=84898634877&partnerID=8YFLogxK
U2 - 10.3390/s140406806
DO - 10.3390/s140406806
M3 - Artículo
SN - 1424-8220
VL - 14
SP - 6806
EP - 6818
JO - Sensors (Switzerland)
JF - Sensors (Switzerland)
IS - 4
ER -