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Sensors 2002, 2(8), 331-338; doi:10.3390/s20800331
Article

Ethylene Detection Using Nanoporous PtTiO2 Coatings Applied to Magnetoelastic Thick Films

1, 1, 1,* , 2 and 2
1 Environmental Chemistry & Technology Program, University of Wisconsin-Madison, Madison, WI, USA 2 Department of Electrical Engineering & Materials Research Institute, 217 Materials Research Laboratory, The Pennsylvania State University, University Park, PA 16802, USA
* Author to whom correspondence should be addressed.
Received: 25 June 2002 / Accepted: 26 June 2002 / Published: 22 August 2002
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Abstract

This paper reports on the use of nanoporous Pt-TiO2 thin films coated onto magnetoelastic sensors for the detection of ethylene, an important plant growth hormone. Five different metal oxide coatings, TiO2, TiO2+ZrO2, TiO2+TTCN(1,4,7-Trithiacyclononane)+Ag, SiO2+Fe, and TiO2+Pt, each having demonstrated photocatalytic activity in response to ethylene, were investigated for their ability to change mass or elasticity in response to changing ethylene concentration. Pt-TiO2 films were found to possess the highest sensitivities, and coupled with the magnetoelastic sensor platform capable of sensing ethylene levels of < 1 ppm.
Keywords: Ethylene; Sensor; Metal Oxide; Magnetoelastic; Nanoporous Ethylene; Sensor; Metal Oxide; Magnetoelastic; Nanoporous
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).
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Zhang, R.; Tejedor, M.I.; Anderson, M.A.; Paulose, M.; Grimes, C.A. Ethylene Detection Using Nanoporous PtTiO2 Coatings Applied to Magnetoelastic Thick Films. Sensors 2002, 2, 331-338.

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