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Proceedings Paper

Gas sensor based on nano ZSM-5 zeolite films for the nerve agent simulant dimethylmethylphosphonate detection
Author(s): Haifen Xie; Yu Ting; Xiaoxiang Sun; Zhou Jia; Yiping Huang
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Paper Abstract

The piezoelectric sensor device coated with nanosize ZSM-5 zeolite films has beem fabricated. The Nerve agent simulant Dimethylmethylphosphonate has been tested with this piezoelectric sensor devices. The frequency shifts to time at 1 ppm, 5ppm and 20ppm DMMP are examined respectively. The minimum detection concentration of 1ppm DMMP has been obtained in the N2 at 293K. 1 ppm is lower than the EC50 concentration value (where EC50 is the airborne concentration sufficient to induce severe effects in 50% of those exposed for 30 min). The frequency sensitivity was found to be about 60HZ / ppm. The effect of acetone on the ZSM-5 zeolite film was also investigated for the selectivity test. Using principle component analysis (PCA), we can qualify and quantify these testing gases.

Paper Details

Date Published: 8 December 2004
PDF: 4 pages
Proc. SPIE 5774, Fifth International Conference on Thin Film Physics and Applications, (8 December 2004); doi: 10.1117/12.608023
Show Author Affiliations
Haifen Xie, Fudan Univ. (China)
East China Univ. of Science and Technology (China)
Yu Ting, Fudan Univ. (China)
Xiaoxiang Sun, Fudan Univ. (China)
Zhou Jia, Fudan Univ. (China)
Yiping Huang, Fudan Univ. (China)

Published in SPIE Proceedings Vol. 5774:
Fifth International Conference on Thin Film Physics and Applications
Junhao Chu; Zongsheng Lai; Lianwei Wang; Shaohui Xu, Editor(s)

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