Dd. Lee et al., HIGH-SENSITIVITY AND SELECTIVITY METHANE GAS SENSORS DOPED WITH RH ASA CATALYST, Sensors and actuators. B, Chemical, 13(1-3), 1993, pp. 252-255
SnO2(Rh) thick-film devices for detecting methane ps selectively have
been prepared by the screen-printing technique, and their characterist
ics have been investigated. The sensitivity of an SnO2 thick film with
added Rh to CH4 (1000 ppm) is about 90% at an operating temperature o
f 400-degrees-C, which is higher than those of SnO2 thick-film devices
with added Pt or Pd.