JOURNAL ARTICLE

Ozone Sensing Based on Palladium Decorated Carbon Nanotubes

Abstract

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.

Keywords:
Palladium Materials science Carbon nanotube Platinum Repeatability Ozone Electrode Decomposition Chemical engineering Nanoparticle Coating Substrate (aquarium) Nanotechnology Catalysis Chemistry Organic chemistry Chromatography Physical chemistry

Metrics

37
Cited By
2.22
FWCI (Field Weighted Citation Impact)
50
Refs
0.90
Citation Normalized Percentile
Is in top 1%
Is in top 10%

Citation History

Topics

Gas Sensing Nanomaterials and Sensors
Physical Sciences →  Engineering →  Electrical and Electronic Engineering
Analytical Chemistry and Sensors
Physical Sciences →  Chemical Engineering →  Bioengineering
Carbon Nanotubes in Composites
Physical Sciences →  Materials Science →  Materials Chemistry
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