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
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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.
Zhang R, Tejedor MI, Anderson MA, Paulose M, Grimes CA. Ethylene Detection Using Nanoporous PtTiO2 Coatings Applied to Magnetoelastic Thick Films. Sensors. 2002; 2(8):331-338.
Zhang, Rhong; Tejedor, M. I.; Anderson, Marc A.; Paulose, Maggie; Grimes, Craig A. 2002. "Ethylene Detection Using Nanoporous PtTiO2 Coatings Applied to Magnetoelastic Thick Films." Sensors 2, no. 8: 331-338.