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Resistivity Sensors of Metal Oxides with Metal Nanoparticles as Catalysts

  • G. A. MousdisEmail author
  • M. Kompitsas
  • D. Tsamakis
  • M. Stamataki
  • G. Petropoulou
  • P. Koralli
Conference paper
Part of the NATO Science for Peace and Security Series A: Chemistry and Biology book series (NAPSA)

Abstract

The metal oxide resistivity sensors are the most common sensors for reducing and oxidizing gases, due to their low cost, easiness of preparation and signal processing. The sensing properties of a metal oxide film depend on the surface roughness, porosity, crystallinity and some other factors, which differentiate for each preparation method. Moreover, the addition of noble nanoparticles on the surface of the films, improves the sensing properties of the films. In this work two different techniques were used to prepare thin films of metal oxides doped with noble metals and their sensing properties for different reducing gases were investigated. Namely we used the (a) PLD technique to prepare thin films of Cu x O (1 < x < 2) doped with Au and testing them as CO and CH4 sensors. (b) Sol-gel technique to prepare ZnO thin films doped with Au as H2 and acetone sensors. All the films are characterized. A significant response to several concentrations of the analytes was demonstrated for all the films at temperatures lower than 200 C.

Keywords

Noble Metal Pulse Laser Deposition Zinc Acetate Dihydrate Metal Oxide Film Resistivity Sensor 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgements

The authors would like to acknowledge the financial support from the Greek General Secretariat for Research and Technology and the European Commission, through the European Social Fund for Regional Development, NHRF 2007–2013 action ‘Development of Research Centres – KPH\(\Pi\) I\(\Sigma\)’, project 447963 ‘New Multifunctional Nanostructured Materials and Devices–POLYNANO’.

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Copyright information

© Springer Science+Business Media Dordrecht 2016

Authors and Affiliations

  • G. A. Mousdis
    • 1
    Email author
  • M. Kompitsas
    • 1
  • D. Tsamakis
    • 2
  • M. Stamataki
    • 2
  • G. Petropoulou
    • 1
  • P. Koralli
    • 1
  1. 1.NHRF-National Hellenic Research FoundationTheoretical and Physical Chemistry Institute-TPCIAthensGreece
  2. 2.Electrical and Computer Engineering DepartmentNational Technical University of AthensAthensGreece

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