Highly sensitive chemical warfare agents (CWAs) detection is demanded against the usage of the CWAs for war or terrorism aims. A dimethyl methylphosphonate (DMMP), simulant for sarin, monitoring sensor based on a homemade wireless-electrodeless quartz crystal microbalance with dissipation (QCM-D) was developed. With this noncontact configuration, deterioration of the sensing ability cause by the electrodes and drilling on the gas chamber for wire lead was avoided. Nano-structured hollow ball-like indium oxide (In₂O₃) was synthesized using a facile hydrothermal method and then decorated with cubic gold particles (In₂O₃-Au). Both of them were applied as the sensing films to detect DMMP. The In₂O₃-Au based QCM-D sensor exhibited 2.1 Hz/ppm to DMMP range from 5 ppm to 50 ppm, which was 400% higher compared to the undecorated one. Moreover, with the simultaneously monitored dissipation value, desorption processes of DMMP was further investigated and the overshoot that appear in some researches was explained in terms of visco-elastic variations in mechanical stiffness. The results suggest that the wireless-electrodeless QCM-D could be a promising strategy for observation of materials under dynamic conditions.

要求高灵敏度的化学战剂（CWA）检测，以防止将CWA用于战争或恐怖主义目的。研制了一种基于自制的无耗电无极石英微天平（QCM-D）的沙林模拟物甲基膦酸二甲酯（DMMP）监测传感器。利用这种非接触构造，避免了由于电极和在用于引线的气室上的钻孔而引起的感测能力的劣化。用一种简便的水热法合成了纳米结构的空心球形氧化铟（In ₂ O ₃），然后用立方金颗粒（In ₂ O ₃ -Au）装饰。它们都被用作检测DMMP的传感膜。In ₂ O ₃-基于Au的QCM-D传感器在5 ppm至50 ppm的DMMP范围内显示2.1 Hz / ppm，比未装饰的传感器高400％。此外，在同时监测耗散值的情况下，进一步研究了DMMP的解吸过程，并根据粘弹性的机械刚度变化解释了一些研究中出现的过冲现象。结果表明，无线无电极QCM-D可能是一种在动态条件下观察材料的有前途的策略。