Title :
Ferrite Materials Produced From Self-Propagating High-Temperature Synthesis for Gas Sensing Applications
Author :
Sathiwitayakul, Thanasak ; Newton, Emma ; Parkin, Ivan P. ; Kuznetsov, Maxim ; Binions, Russell
Author_Institution :
Dept. of Chem., Univ. Coll. London, London, UK
Abstract :
The gas-sensing properties of orthorhombic and spinel ferrites (LaFeO3, NiFe2O4 and CoFe2O4) prepared by self-propagating high-temperature synthesis (SHS) have been investigated. This is one of the first reports of using an SHS derived powder for gas sensing applications. The gas response of the materials was tested against a wide range of environmentally important gases (ethanol, ethane, ethene, ammonia, propane, and CO) at a range of different operating temperatures. Good gas response behavior was found with excellent selectivity toward ethanol, particularly in the case of the LaFeO3 sensor.
Keywords :
cobalt compounds; combustion synthesis; ferrites; gas sensors; lanthanum compounds; nickel compounds; powders; CoFe2O4; LaFeO3; LaFeO3 sensor; NiFe2O4; SHS derived powder; ferrite materials; gas sensing applications; orthorhombic ferrites; selectivity; self-propagating high-temperature synthesis; spinel ferrites; Chemical sensors; Ethanol; Gas detectors; Materials; Metals; Temperature sensors; Chemical and biological sensors; ceramics; ferrite films; thick film sensors;
Journal_Title :
Sensors Journal, IEEE
DOI :
10.1109/JSEN.2014.2337354
