Lama Sanjeeb, Kim Jinuk, Ramesh Sivalingam, Lee Young-Jun, Kim Jihyun, Kim Joo-Hyung
INHA IST and Laboratory of Intelligent Devices and Thermal Control, Department of Mechanical Engineering, Inha University, Incheon 22212, Korea.
Department of Mechanical, Robotics and Energy Engineering, Dongguk University-Seoul, Seoul 04620, Korea.
Micromachines (Basel). 2021 May 31;12(6):648. doi: 10.3390/mi12060648.
Nanostructured materials synthesized by the hydrothermal and thermal reduction process were tested to detect the dimethyl methylphosphonate (DMMP) as a simulant for chemical warfare agents. Manganese oxide nitrogen-doped graphene oxide with polypyrrole (MnO@NGO/PPy) exhibited the sensitivity of 51 Hz for 25 ppm of DMMP and showed the selectivity of 1.26 Hz/ppm. Nitrogen-doped multi-walled carbon nanotube (N-MWCNT) demonstrated good linearity with a correlation coefficient of 0.997. A comparison between a surface acoustic wave and quartz crystal microbalance sensor exhibited more than 100-times higher sensitivity of SAW sensor than QCM sensor.
通过水热和热还原过程合成的纳米结构材料被用于检测作为化学战剂模拟物的甲基膦酸二甲酯（DMMP）。具有聚吡咯的氮掺杂氧化锰石墨烯（MnO@NGO/PPy）对25 ppm的DMMP表现出51 Hz的灵敏度，选择性为1.26 Hz/ppm。氮掺杂多壁碳纳米管（N-MWCNT）表现出良好的线性，相关系数为0.997。表面声波传感器和石英晶体微天平传感器的比较表明，SAW传感器的灵敏度比QCM传感器高100倍以上。
