Journal
SENSORS
Volume 14, Issue 4, Pages 6806-6818Publisher
MDPI
DOI: 10.3390/s140406806
Keywords
gas sensor; ozone; multiwall carbon nanotubes; Pd nanoparticles
Funding
- Direccion de Investigacion y Posgrado del Instituto Mexicano del Petroleo
- CONACyT
- Physicis and Mathematics Department
- Direction of Research at Universidad Iberoamericana
Ask authors/readers for more resources
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 (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 degrees C. The device shows a very reproducible sensor performance, with high repeatability, full recovery and efficient response.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available