Conducting polymers, are still fascinating the industrial applications area since their discovery, particularly in the field of chemical sensors. For this purpose, flexible and highly sensitive based polyaniline-strontium (PANI-Sr) films were successfully prepared via a facile in-situ chemical polymerization process of aniline in presence of Sr (NO₃)₂ deposited on biaxially oriented polyethylene terephthalate (BOPET) flexible substrates with prior surface treatment using (3-aminopropyl) trimethoxysilane. Spectral, structural, morphological, and surface behavior characterizations were carried out using Fourier transform infrared spectroscopy (FTIR-ATR), X-ray fluorescence (XRF), raman spectroscopy, X-ray diffraction, scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDX) and surface wettability. The electrical conductivity was measured by the usual four probes technique. Noticeably, the prepared films with Sr (NO₃)₂ ∼2 M have shown a highest conductivity of 0.3 S·cm⁻¹ over the other samples. This conductivity feature has been exploited to test the sensitivity and the performances of the obtained films toward different type of gas. The PANI-Sr sensor demonstrates an outstanding selectivity and an excellent sensitivity towards the ammonia (498% response to 100 ppm) within a detection limit of 0.013 ppm, and a fast response/recovery time (1 s /42 s) toward 50 ppm at room temperature. The PANI-Sr sensor also showed a good reproducibility during five cycles. The interaction mechanism of PANI-Sr sensor film and the NH₃ vapors was discussed basing on the impedance spectroscopy analysis results. The obtained results highlight the paramount role played by the strontium particle in enhancing the ammonia detection performances, when they are imbedded into PANI matrix through facile preparation process, and they emphasize their prominence over the similar study.

自从发现导电聚合物以来，其仍特别吸引着工业应用领域，特别是在化学传感器领域。为了这个目的，灵活和高度敏感的聚苯胺基锶成功制备（PANI-SR）膜经由一个浅显苯胺原位化学聚合方法中的锶（NO存在₃）₂通过使用（3-氨丙基）三甲氧基硅烷的预先表面处理，将其沉积在双轴取向的聚对苯二甲酸乙二醇酯（BOPET）柔性基板上。使用傅里叶变换红外光谱（FTIR-ATR），X射线荧光（XRF），拉曼光谱，X射线衍射，扫描电子显微镜（SEM），能量色散X进行光谱，结构，形态和表面行为表征射线光谱法（EDX）和表面润湿性。用通常的四探针技术测量电导率。值得注意的是，与锶所制备的膜（NO ₃）₂〜2 M具有0.3所示S的导电率最高·厘米^-1超过其他样本。已经利用该电导率特征来测试所获得的膜对不同类型的气体的敏感性和性能。PANI-Sr传感器在0.013 ppm的检出限内显示出出色的选择性和对氨的出色灵敏度（对100 ppm的498％响应），以及在50ppm时对50 ppm的快速响应/恢复时间（1 s / 42 s）。室内温度。PANI-Sr传感器在五个周期内也显示出良好的重现性。PANI-Sr传感器膜与NH ₃的相互作用机理根据阻抗谱分析结果讨论了蒸汽。通过简便的制备过程将锶粒子嵌入PANI基质中，所获得的结果突出了锶粒子在增强氨检测性能中的最重要作用，并且强调了它们在类似研究中的突出地位。