Transition Metal Complexes as Ammonia Responsive Materials for SAW Chemical Sensors

  • S. Lo Schiavo
  • P. Cardiano
  • N. Donato
  • M. Latino
  • G. Neri
Conference paper
Part of the Lecture Notes in Electrical Engineering book series (LNEE, volume 91)


In the present paper we describe the development of a surface acoustic wave (SAW) ammonia sensor which utilizes the Rh2(form)4 complex as responding material. It has observed that the SAW resonance frequency shifted reversibly upwards upon NH3 exposures at room temperature. Moreover, the greater affinity of the Rh2(form)4 film coating for the N-Lewis bases guaranteed a selective binding capability towards NH3 in the presence of water vapour, allowing to monitor the concentration of ammonia gas in the head-space of aqueous solutions.


Surface Acoustic Wave Transition Metal Complex Resonance Frequency Shift Ammonia Sensor Responsive Material 
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The work was funded by the University of Messina under the framework of the project “PRA Interdisciplinare 2007”.


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Copyright information

© Springer Science+Business Media B.V. 2011

Authors and Affiliations

  • S. Lo Schiavo
    • 1
  • P. Cardiano
    • 1
  • N. Donato
    • 2
  • M. Latino
    • 3
  • G. Neri
    • 4
  1. 1.Department of Inorganic Chemistry, Analytical Chemistry and Physical ChemistryUniversity of MessinaMessinaItaly
  2. 2.Department of Matter Physics and Electronics EngineeringUniversity of MessinaMessinaItaly
  3. 3.Department of Chemical Science and TechnologiesUniversity of Rome Tor VergataRomeItaly
  4. 4.Department of Industrial Chemistry and Materials EngineeringUniversity of MessinaMessinaItaly

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