Development of a selective ammonia YSZ-based sensor and modeling of its response

In the present study, Au-V2O5 sensing material was tested as a electrode for developing mixed-potential ammonia gas sensors. The results of measurements indicated selective responses to NH3 while this selectivity highly dependent on temperature. Different V2O5 contents were in electrode. showed that by increasing content from 15 wt.% 50 wt.%, sensors could be achieved at 550 °C. Au-50 %V2O5 sensor also confirmed mixtures CO, NH3, NO, and NO2 gases. Modeling concentration range 2–40 ppm four oxygen concentrations performed based theory. Nernst Butler-Volmer equations with an electron transfer assumption used data modeling.