This report talks in detail about the successful synthesis of nanoparticle material Mg_(x)Fe_(1−x)2O₄ (x = 0.1, 0.5 and 0.9) through a simple and inexpensive sol-gel auto-combustion process and its application as a gas sensor. A detailed description of the dependence of liquefied petroleum gas (LPG) sensing performance on the various compositional ratios of Mg_(x)Fe_(1−x)2O₄ (x = 0.1, 0.5 and 0.9) have been investigated. The device was prepared by drop-drying method on lithographic patterned flexible interdigitated electrodes (IDEs). The characterizations revealed that at the specific composition of Mg_(x)Fe_(1−x)2O₄ (x = 0.5), the prepared material performed with supreme sensitivity at 90 °C with respect to the commercially existing gas sensors for 500 ppm of LPG at applied voltage 1 V. Additionally, this device reproduced the similar response in bending test also. The sensor has exhibited related stability even after few days and maintained the stability quite well for several cycles.

该报告详细讨论了 通过简单且廉价的溶胶-凝胶自动燃烧过程成功合成纳米颗粒材料Mg _（x） Fe _{（1- x）2} O ₄（x = 0.1、0.5和0.9）的方法及其在以下领域的应用气体传感器。详细描述液化石油气（LPG）传感性能对Mg _（x） Fe _{（1- x）2} O ₄（x = 0.1、0.5和0.9）。通过滴干法在光刻图案化的柔性叉指电极（IDE）上制备该装置。表征表明，在Mg _（x） Fe _{（1- x）2} O ₄（x  = 0.5）的特定组成下，相对于商用气体传感器，所制备的材料在90°C下的灵敏度最高为500 ppm。在施加1 V电压时，LPG的强度也降低了。此外，该设备在弯曲测试中也产生了类似的响应。传感器甚至在几天后仍显示出相关的稳定性，并且在几个周期内都保持了很好的稳定性。