Title :
H2S gas detection by ZrO-doped SnO2
Author :
Kanefusa, Shinji ; Nitta, Masayoshi ; Haradome, Miyoshi
Author_Institution :
Phys. Sci. Labs., Coll. of Ind. Technol., Nihon Univ., Chibaken, Japan
fDate :
1/1/1988 12:00:00 AM
Abstract :
The authors report on the fabrication of H2S gas sensors made of SnO2 mixed with ZrO2. Their sensitivities, responses, and selectivities to H2S are presented. A 10-p.p.m. concentration of H2S gas changes the sensor resistivity to a value 300 times lower than that for air around 175°C. The sensors exhibit highly selective detection of H2 S in an atmosphere containing H2S and H2. The mechanism of the reaction between the sensors and H2S are also discussed
Keywords :
chemical analysis; electric sensing devices; hydrogen compounds; semiconductor materials; tin compounds; zirconium compounds; H2S gas detection; SnO2:ZrO2; gas sensors; responses; selectivities; sensitivities; Gas detectors; Gases; Hydrogen; Samarium; Silicon compounds; Temperature dependence; Temperature measurement; Temperature sensors; Testing; Voltage;
Journal_Title :
Electron Devices, IEEE Transactions on
