1.4.4 Analysis of industrial and domestic gases by means of electronic nose
- Event
- 14th International Meeting on Chemical Sensors - IMCS 2012
2012-05-20 - 2012-05-23
Nürnberg/Nuremberg, Germany - Chapter
- 1.4 Sensors Arrays
- Author(s)
- D. Haridas, K. Mahavidyalaya - University of Delhi (India), V. Gupta - Department of Physics and Astrophysics, University of Delhi (India)
- Pages
- 122 - 125
- DOI
- 10.5162/IMCS2012/1.4.4
- ISBN
- 978-3-9813484-2-2
- Price
- free
Abstract
In the present study a novel hybrid gas sensor array (E-Nose) composed of SnO2 thin film loaded with different catalyst clusters for sensitive gas discrimination followed by pattern recognition approach is demonstrated. An array of hybrid sensors (SnO2-Pt-custers, SnO2-Pd-clusters, SnO2-Ag-clusters, SnO2-CuO-clusters) operated at fixed temperatures have been developed for effective discrimination of target gases (LPG, Methane, Ammonia and H2S). Radar plots and Principal component analysis of the generated patterns of E-Nose showed great discrimination of the target gases. Principal component analysis of the sensing results showed great discrimination of target gases and an array of six sensors are proposed operating at lower temperature (60°C or 140°C) for realization of hybrid class E- Nose exhibiting good performance with low power consumption.