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Micromachined twin gas sensor for CO and O2 quantification based on catalytically modified nano-SnO2

Belmonte, J.C. (författare)
Electronic Materials and Engineering, Electronics Department, Faculty of Physics, University of Barcelona, C/Martí i Franquès 1, E-08028 Barcelona, Spain, Imperial College of London, Department of Materials, Dr. Molly M. Stevens Lab., Exhibition Road, London SW7 2AZ, United Kingdom, Department of Materials, Imperial College, London
Manzano, J. (författare)
Linköpings universitet,Institutionen för fysik, kemi och biologi,Tekniska högskolan
Arbiol, J. (författare)
Electronic Materials and Engineering, Electronics Department, Faculty of Physics, University of Barcelona, C/Martí i Franquès 1, E-08028 Barcelona, Spain
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Cirera, A. (författare)
Electronic Materials and Engineering, Electronics Department, Faculty of Physics, University of Barcelona, C/Martí i Franquès 1, E-08028 Barcelona, Spain
Puigcorbe, J. (författare)
Puigcorbé, J., Electronic Materials and Engineering, Electronics Department, Faculty of Physics, University of Barcelona, C/Martí i Franquès 1, E-08028 Barcelona, Spain
Vila, A. (författare)
Vilà, A., Electronic Materials and Engineering, Electronics Department, Faculty of Physics, University of Barcelona, C/Martí i Franquès 1, E-08028 Barcelona, Spain, University of Barcelona
Sabate, N. (författare)
Sabaté, N., Department of Silicon Technologies and Microsystems, National Center of Microelectronics, Campus UAB, E-08193 Bellaterra, Spain, Micro Materials Center, IZM Fraunhofer, Berlin
Gracia, I. (författare)
Gràcia, I., Department of Silicon Technologies and Microsystems, National Center of Microelectronics, Campus UAB, E-08193 Bellaterra, Spain
Cane, C. (författare)
Cané, C., Department of Silicon Technologies and Microsystems, National Center of Microelectronics, Campus UAB, E-08193 Bellaterra, Spain, National Microelectronics Centre, Spain CNM-CSIC
Morante, J.R. (författare)
Electronic Materials and Engineering, Electronics Department, Faculty of Physics, University of Barcelona, C/Martí i Franquès 1, E-08028 Barcelona, Spain, Electronic Materials and Engineering Group, EME, EME (Electronic Materials and Engineering) Research Group, CEMIC (Centre for Engineering of Microsystems), CeRMAE (Centre of Reference of Advanced Materials for Energy)
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Electronic Materials and Engineering, Electronics Department, Faculty of Physics, University of Barcelona, C/Martí i Franquès 1, E-08028 Barcelona, Spain, Imperial College of London, Department of Materials, Dr Molly M. Stevens Lab., Exhibition Road, London SW7 2AZ, United Kingdom, Department of Materials, Imperial College, London Institutionen för fysik, kemi och biologi (creator_code:org_t)
Elsevier BV, 2006
2006
Engelska.
Ingår i: Sensors and actuators. B, Chemical. - : Elsevier BV. - 0925-4005 .- 1873-3077. ; 114:2, s. 881-892
  • Tidskriftsartikel (refereegranskat)
Abstract Ämnesord
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  • In this work we present a micromachined twin sensor that can distinguish between carbon monoxide (CO) and O2 gas taking advantage of the high sensitivity of SnO2 to these gases. The SnO2 nanoparticles of both sensors are catalytically modified with different Pd loadings that act as active filters. In this way, one sensor response is turned to present a higher sensitivity to CO than to O2, whereas the other sensor is mainly turned for detecting O2 variations. The twin sensor has two membranes in the same die of micromachined silicon. Each membrane works independently from the other without any cross talk of temperature. The resistance data obtained from this twin sensor as a function of CO and O 2 concentrations is parametrized. Then, two functions are calculated for the quantification of CO/O2 gas mixtures. A comparison with commercial gas sensors is shown. © 2005 Elsevier B.V. All rights reserved.

Nyckelord

CO
Gas sensor
Micromachined
O2
Pd
SnO2
TECHNOLOGY
TEKNIKVETENSKAP

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