作者: Daqi Chen , Kaihuan Zhang , Hui Zhou , Guokang Fan , You Wang
DOI: 10.1016/J.SNB.2018.01.105
关键词: Optoelectronics 、 Desorption 、 Oxide 、 Hydrothermal circulation 、 Dimethyl methylphosphonate 、 Materials science 、 Indium 、 Electrode 、 Quartz crystal microbalance 、 Dissipation
摘要: Abstract Highly sensitive chemical warfare agents (CWAs) detection is demanded against the usage of CWAs for war or terrorism aims. A dimethyl methylphosphonate (DMMP), simulant sarin, monitoring sensor based on a homemade wireless-electrodeless quartz crystal microbalance with dissipation (QCM-D) was developed. With this noncontact configuration, deterioration sensing ability cause by electrodes and drilling gas chamber wire lead avoided. Nano-structured hollow ball-like indium oxide (In2O3) synthesized using facile hydrothermal method then decorated cubic gold particles (In2O3-Au). Both them were applied as films to detect DMMP. The In2O3-Au QCM-D exhibited 2.1 Hz/ppm DMMP range from 5 ppm 50 ppm, which 400% higher compared undecorated one. Moreover, simultaneously monitored value, desorption processes further investigated overshoot that appear in some researches explained terms visco-elastic variations mechanical stiffness. results suggest could be promising strategy observation materials under dynamic conditions.