AlTakroori Husam H D, Ali Ashraf, Greish Yaser E, Qamhieh Naser, Mahmoud Saleh T
Department of Physics, United Arab Emirates University, Al-Ain 15551, United Arab Emirates.
Department of Chemistry, United Arab Emirates University, Al-Ain 15551, United Arab Emirates.
Nanomaterials (Basel). 2022 Jun 14;12(12):2037. doi: 10.3390/nano12122037.
A room temperature (RT) HS gas sensor based on organic-inorganic nanocomposites has been developed by incorporating zinc oxide (ZnO) nanoparticles (NPs) into a conductivity-controlled organic polymer matrix. A homogeneous solution containing poly (vinyl alcohol) (PVA) and ionic liquid (IL) and further doped with ZnO NPs was used for the fabrication of a flexible membrane (approx. 200 μm in thickness). The sensor was assessed for its performance against hazardous gases at RT (23 °C). The obtained sensor exhibited good sensitivity, with a detection limit of 15 ppm, and a fast time response (24 ± 3 s) toward HS gas. The sensor also showed excellent repeatability, long-term stability and selectivity toward HS gas among other test gases. Furthermore, the sensor depicted a high flexibility, low cost, easy fabrication and low power consumption, thus holding great promise for flexible electronic gas sensors.
通过将氧化锌（ZnO）纳米颗粒（NPs）掺入到电导率可控的有机聚合物基质中，开发出了一种基于有机-无机纳米复合材料的室温（RT）硫化氢气体传感器。一种含有聚乙烯醇（PVA）和离子液体（IL）并进一步掺杂ZnO NPs的均匀溶液被用于制备柔性膜（厚度约为200μm）。在室温（23°C）下评估了该传感器对有害气体的性能。所获得的传感器表现出良好的灵敏度，检测限为15 ppm，对硫化氢气体的响应时间快（24±3 s）。该传感器对硫化氢气体在其他测试气体中还表现出优异的重复性、长期稳定性和选择性。此外，该传感器具有高柔韧性、低成本、易于制造和低功耗等特点，因此在柔性电子气体传感器方面具有很大的前景。
