Fabrication of MWNTs-PANI composite - a chemiresistive sensor material for the detection of explosive gases

• Autorzy: Yuan C. L. , Chang C. P. , Hong Y. S. , Sung Y.
• Języki publikacji: EN

Abstrakty

EN

A chemiresistive sensor was fabricated by the chemical modification of multi-walled carbon nanotubes (MWNTs) and chemical oxidation of polyaniline (PANI). The resistances of the sensing film samples against 100, 250, 500, 1000 ppm explosives (picric acid (PA), 2,6-dinitrotoluene (2,6-DNT) and 2,4,6-trinitrotoluene(TNT)) agents were investigated. The MWNTs with various wt. % PANI agents were characterized by TGA, SEM, FTIR and Raman spectroscopy, respectively. The experimental results showed that 1wt. % MWNTs and 10, 5, 1wt. % PANI sensor samples provided high sensitivity, excellent selectivity and good reproducibility to PA and 2,6-DNT vapours. In addition, principal component analysis (PCA) was applied to distinguish the performance of PA, 2,6-DNT and TNT agents. Our results indicate that the electric detection of explosive agents is possible with simply fabricated MWNTs-PANI devices.

Słowa kluczowe

EN

multi-walled carbon nanotubes; polyaniline; explosive; PCA

• Wydawca: De Gruyter
• Czasopismo: Materials Science Poland
• Rocznik: 2009
• Tom: Vol. 27, No. 2
• Strony: 509--520
• Opis fizyczny: Bibliogr. 18 poz.

Twórcy

autor

Yuan C. L.

autor

Chang C. P.

autor

Hong Y. S.

autor

Sung Y.

• Graduate School of Defense Science, Chung Cheng Institute of Technology, National Defense University, Tao-Yuan, Taiwan 335, ROC

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