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Detecting H2S oscillatory response using surface plasmon spectroscopy

Published online by Cambridge University Press:  05 June 2013

Enrico Della Gaspera  and
Alessandro Martucci
Enrico Della Gaspera
Affiliation:
Università di Padova, Dipartimento di Ingegneria Industriale, Padova, Italy
Alessandro Martucci*
Affiliation:
Università di Padova, Dipartimento di Ingegneria Industriale, Padova, Italy
*
*Email: alex.martucci@unipd.it
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Abstract

The oscillatory change in the optical absorbance of NiO-TiO2 film containing Au nanoparticles in the presence of H2S gas are investigated. The oscillatory phenomena could be monitored by looking at the variation of the surface plasmon resonance peak of the Au nanoparticles embedded in the TiO2-NiO matrix. Au nanoparticles act as optical probes in the detection of H2S, while the oxide matrix is responsible for the catalytic oxidation of H2S. To the best of our knowledge, it is the first time that oscillatory phenomena are monitored by optical spectroscopy.

Keywords

optical propertiessensornanostructure
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1552: Symposium S – Nanostructured Metal Oxides for Advanced Applications , 2013 , pp. 77 - 82
Copyright
Copyright © Materials Research Society 2013 

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References

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