Wearable Gas Sensor Based on Reticular Antimony-Doped SnO2/PANI Nanocomposite Realizing Intelligent Detection of Ammonia within a Wide Range of Humidity

• DOI: 10.1021/acssensors.3c01326
• Publication Date: 2023-11-08T14:58:15Z
• Authors: Yiwen Li; Yibo Zhang; Yun Zhou; Liupeng Zhao; Xu Yan; Fangmeng Liu; Geyu Lu; Peng Sun
• Keywords: Electronic Nose; Electrochemical gas sensor

Wearable gas sensors demonstrate broad potential for environmental monitoring and breath analysis applications. Typically, they require a highly stable high-performance flexible sensing unit that can work with small, circuit to enable real-time accurate concentration prediction. This proposes sensor using antimony-doped tin dioxide composite polyaniline as the material room-temperature ammonia detection over wide humidity range. The exhibits high sensitivity (response value at 33.1 toward 100 ppm 70% relative humidity), excellent selectivity, good long-term mechanical stability. increased is due reduction in hole of air, achieved through compositing doping. Subsequently, regression equations are developed establish relationship between response under varying conditions. was integrated low-power module form wearable smart bracelet signal acquisition, processing, wireless transmission functions, which could achieve early remote warning leakage different environments. research demonstrates promising approach designing high-performance, high-stability, their corresponding systems.