Low temperature Pd/SnO2 sensor for carbon monoxide detection

The development of a tin oxide nanoparticle based sensor for detecting carbon monoxide at low temperature, 60°C is presented. A combination of three approaches namely, (1) addition of a catalytic metal – 1.5% palladium, (2) optimization of organic binder content, and (3) a proper design of electrode...

Full description

Saved in:
Bibliographic Details
Published in:Sensors and actuators. B, Chemical Chemical, 2013-02, Vol.177, p.770-775
Main Authors: Kim, Beomseok, Lu, Yijiang, Hannon, Ami, Meyyappan, M., Li, Jing
Format: Article
Language:English
Subjects:
Carbon monoxide
Carbon monoxide sensor
cellulose
electrodes
heat
humidity
Hydroxypropyl cellulose
Low temperature sensing
nanoparticles
Nanostructure
Palladium
Palladium doped tin dioxide
Repeatability
Reproducibility
Sensors
temperature
tin
Tin dioxide
Tin oxides
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The development of a tin oxide nanoparticle based sensor for detecting carbon monoxide at low temperature, 60°C is presented. A combination of three approaches namely, (1) addition of a catalytic metal – 1.5% palladium, (2) optimization of organic binder content, and (3) a proper design of electrodes, leads to high sensitivity, excellent repeatability, and long-term stability in sensor response. The sensors have been tested in dry (70% RH) conditions, and no humidity effect on the sensor performance was noticed. The sensors using 15% hydroxypropyl cellulose (HPC) mixed with Pd/SnO2 show sensitivity to CO gas in the parts per million (ppm) level of concentration, 5–10% repeatability in 6–18ppm CO exposures, and active response for more than 40 days. In addition, the fatigued sensors were recoverable with a brief heating process.
ISSN:0925-4005
1873-3077
DOI:10.1016/j.snb.2012.11.020