Department of Physics, UAE University, Al Ain, United Arab Emirates.
Department of Electrical Engineering, UAE University, Al Ain, United Arab Emirates.
Carbohydr Polym. 2020 May 15;236:116064. doi: 10.1016/j.carbpol.2020.116064. Epub 2020 Feb 24.
In this work, a novel selective and low temperature HS gas sensor was fabricated based on copper (II) oxide nanoparticles (CuO NPs) in different concentrations, embedded in a conductivity-engineered organic (glycerol ionic liquid-doped chitosan) membrane/film. The sensing membranes of organic-inorganic nanocomposites (CS-IL-CuO) were prepared by casting method and were tested against HS gas with reference to time at different temperatures and HS gas concentrations. The fabricated sensor showed a fast response (14 s) and good sensitivity (15 ppm) towards HS gas at a low temperature of 40 °C. Moreover, the sensor showed a high reversibility and less humidity dependence at 40 °C. Moreover, this type of hybrid nanocomposites sensor is easy and inexpensive to manufacture and is energy efficient. Thus, it has potential to be used for industrial applications in harsh environments.
在这项工作中，基于不同浓度的氧化铜纳米粒子（CuO NPs），我们制备了一种新型的选择性和低温 HS 气体传感器，该传感器嵌入在经过传导性能优化的有机（甘油离子液体掺杂壳聚糖）膜/片中。通过浇铸法制备了有机-无机纳米复合材料（CS-IL-CuO）的传感膜，并在不同温度和 HS 气体浓度下参照时间对 HS 气体进行了测试。所制备的传感器在 40°C 的低温下对 HS 气体表现出快速的响应（14s）和良好的灵敏度（15ppm）。此外，该传感器在 40°C 时表现出高的可逆性和低的湿度依赖性。此外，这种混合纳米复合材料传感器易于制造且成本低廉，并且节能。因此，它有可能在恶劣环境下的工业应用中得到使用。
