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Highly Sensitive Hybrid Nanostructures for Dimethyl Methyl Phosphonate Detectionopen access
- Issue Date
- Jun-2021
- Publisher
- MDPI
- Keywords
- chemical warfare agent (CWAs); dimethyl methylphosphonate (DMMP); volatile compounds (VOCs); quartz crystal microbalance (QCM); surface acoustic wave (SAW)
- Citation
- MICROMACHINES, v.12, no.6
- Indexed
- SCIE
SCOPUS
- Journal Title
- MICROMACHINES
- Volume
- 12
- Number
- 6
- ISSN
- 2072-666X
2072-666X
- Abstract
- 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 (MnO2@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.
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