Scheme 2. Ammonia sensing mechanism by PPy sensor

From

Electrical and Gas Sensing Behaviour of Polypyrrole/silver Sulphide Nanocomposites

Bharati Yeole, Tanushree Sen, Dharmesh Hansora, Satyendra Mishra

American Journal of Sensor Technology. 2017, 4(1), 10-20 doi:10.12691/ajst-4-1-2