Developing a technique for the detection of nitro-alkanes, which are explosive and toxic, is vital. However, it is hard to selectively detect these compounds at low concentrations for early leakage warning. Here, a nanocomposite material was prepared to promote electron transfer and enhance the content of chemically absorbed oxygen by creating an n-n heterojunction between CdIn₂O₄ and In₂O₃, leading to an enhanced response, shortened response time and reduced working temperature. As a result, the best sensor was found to exhibit an ultra-high response of 78 to 10 ppm nitropropane with quite a low detection limit of 50 ppb at 100 °C. Furthermore, the designed sensor was nearly insensitive to ethanol, acetone, hydrogen, CO, methanol, toluene and methane. Presently, the sensor demonstrated the highest response among those studied in previous investigations.

开发一种爆炸性和有毒的硝基烷烃检测技术至关重要。但是，很难有选择地检测低浓度的这些化合物以进行早期泄漏预警。此处，制备了纳米复合材料，以通过在CdIn ₂ O ₄和In ₂ O ₃之间形成nn异质结来促进电子转移并提高化学吸收的氧含量。，从而提高响应速度，缩短响应时间并降低工作温度。结果，发现最好的传感器表现出78至10 ppm硝基丙烷的超高响应，在100°C时的检测限仅为50 ppb。此外，设计的传感器对乙醇，丙酮，氢气，CO，甲醇，甲苯和甲烷几乎不敏感。目前，在先前的研究中，传感器表现出最高的响应。