S-Space College of Engineering/Engineering Practice School (공과대학/대학원) Dept. of Chemical and Biological Engineering (화학생물공학부) Journal Papers (저널논문_화학생물공학부)
Sensing behaviour of semconducting metal oxides for the detection of organophosphorus compounds
- Oh, S. W.; Kim, Y. H.; Yoo, D. J.; Oh, S. M.; Park, S. J.
- Issue Date
- Sensors and Actuators B, 13-14 (1993) 400
- Sensing behaviours of doped SnOa and ZnO elements have been investigated for the detection of organophosphorus
compounds. Among the etements examined, SnOa- or ZnO-based elements doped with basic oxides such as CaO
and MgO exhibit a promis~g sensing property to Dh4MP (dimethyl ~thylphosphonate). Reasonable sensitize
can be obtained at concentrations of DMMP down to 44 ppb. The test gas was oxidixed upon exposure to the
oxides. It has been suggested that the basic oxide additives are effective in aiding dissociative adsorption of
DMMP on the oxide surface, thus facilitating the oxidation reaction of the test gas.
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