Hydrogen Sulfide Detection by Sensors Based on Conductive Polymers: A Review

Coming from natural and anthropogenic sources, hydrogen sulfide gas (H2S) is a smelly hazardous substance at sub-ppm level, which can lead to poisoning deaths at higher concentration. Researchers have been working for decades to design sensors with sufficient/good/robust metrological properties and good stability in order to monitor and control in real-time the risk associated to this gas. Among the devices proposed, chemiresistive sensors based...