Ethylene Detection Using Nanoporous PtTiO2 Coatings Applied to Magnetoelastic Thick Films

Sensors

Rhong Zhang¹  M. I. Tejedor¹  Marc A. Anderson¹  Maggie Paulose¹ 

[1] ¹Environmental Chemistry & Technology Program, University of Wisconsin-Madison, Madison, WI, USA ²Department of Electrical Engineering & Materials Research Institute, 217 Materials Research Laboratory, The Pennsylvania State University, University Park, PA 16802, USA

关键词: Ethylene;    Sensor;    Metal Oxide;    Magnetoelastic;    Nanoporous;   

DOI  :  10.3390/s20800331

来源: mdpi

【 摘 要 】

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.

【 授权许可】

CC BY   
This is an open access article distributed under the Creative Commons Attribution License (CC BY) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.