The Development of FeMn2O4 Gas Sensors at Room Temperature

Ibrahim Gaidan

doi:10.4028/www.scientific.net/KEM.605.211

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HomeKey Engineering MaterialsKey Engineering Materials Vol. 605The Development of FeMn2O4 Gas Sensors at Room...

The Development of FeMn₂O₄ Gas Sensors at Room Temperature

Abstract:

Different ratios of MnO₂ / Fe₂O₃, were used after being fired to form thick film gas sensors. The films were deposited on alumina substrates. The response of the sensors for a concentration range of 2500-5000 ppm increasing by a step size of 500 ppm of propanol at room temperature was investigated. The highest response was with the 75 / 25 MnO₂/ Fe₂O₃ sensor followed by the 25 / 75 and 50 / 50 MnO₂/ Fe₂O₃ sensors. The repeatability of the 75 / 25 mol. % MnO₂ / Fe₂O₃ to propanol at two concentration ranges 500-3000 and 2500 - 5000 ppm increasing with a step size of 500 ppm at room temperature was reported. The X-Ray Diffraction (XRD) is used to determine the final composition of the materials after firing. The XRD results show that MnO₂reacts with Fe₂O₃to form FeMn₂O₄ with Fe₂O₃ and Fe₃O₄..

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Key Engineering Materials (Volume 605)

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211-214

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.605.211

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April 2014

Authors:

Ibrahim Gaidan

Keywords:

Gas Sensor, Material, Thick Film

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