In recent years, due to the health an‎d environmental risks caused by the emission of toxic ammonia gas in the agricultural, medical an‎d petrochemical industries, the development of efficient an‎d accurate wearable sensors for real-time monitoring of this gas is of vital importance. Therefore, the purpose of this research is to coat the conductive polymer polypyrrole an‎d compare the result of the sensors produced from them, such as sensor response, response time, recovery time, selec‎tivity an‎d response stability. Also, the presence of MXene nanosheets in this structure is investigated. For this purpose, cotton-based gas sensor fabrics with polypyrrole coating by chemical polymerization, MXene nanosheet coating by dro‎p coating method an‎d a combination of the two are produced for the detection of ammonia gas. The morphology, elemental analysis an‎d performance of the designed textile gas sensors were eva‎luated. The results of this research show that the produced sensors can detect ammonia gas well an‎d the relationship between the response of the produced sensors an‎d ammonia gas is completely linear. Given this convenient option, the acceptability, repeatability, an‎d good selec‎tivity of the manufactured sensors, the sensors become a suitable option for wearable applications in environmental an‎d industrial ammonia monitoring.

وحيد عبادي

داريوش سمناني , مصطفي يوسفي