P1.0.6 Impedancemetric Acetylene Sensor Besed on Perovskite-Type Oxide Sm1-xCaxFeO3 (x = 0, 0.05, 0.20, 1.0) Thick-Film

Event
14th International Meeting on Chemical Sensors - IMCS 2012
2012-05-20 - 2012-05-23
Nürnberg/Nuremberg, Germany
Chapter
P1.0 Metal Oxide-based Sensors
Author(s)
T. Tasaki, S. Takase, Y. Shimizu - Department of Applied Chemistry, Kyushu Institute of Technology (Japan)
Pages
764 - 767
DOI
10.5162/IMCS2012/P1.0.6
ISBN
978-3-9813484-2-2
Price
free

Abstract

Perovskite-type oxide Sm1-xCaxFeO3(x = 0, 0.05, 0.20, 1.0) powders were prepared by a wet-chemical route using a polymer precursor method at 750 ºC and a screen-printed oxide thick films were applied as an acetylene sensor which outputs were measured by an AC impedance spectroscopy. Although the conductance of Ca2+-substituted SmFeO3 device was high, the amount of impedance change to C2H2 in PO2 = 0.21 atm was low, compared with SmFeO3.

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