A room temperature polyaniline nanofibre hydrogen gas sensor

Sadek, A, Trinchi, A, Wlodarski, W, Kalantar-Zadeh, K, Galatsis, K, Baker, C and Kaner, R 2005, 'A room temperature polyaniline nanofibre hydrogen gas sensor', in Proceedings of the Fourth IEEE Sensors 2005 Conference, Irvine, CA, 30 October - 3 November 2005.

Document type: Conference Paper
Collection: Conference Papers

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Title A room temperature polyaniline nanofibre hydrogen gas sensor
Author(s) Sadek, A
Trinchi, A
Wlodarski, W
Kalantar-Zadeh, K
Galatsis, K
Baker, C
Kaner, R
Year 2005
Conference name IEEE Sensors Conference
Conference location Irvine, CA
Conference dates 30 October - 3 November 2005
Proceedings title Proceedings of the Fourth IEEE Sensors 2005 Conference
Publisher IEEE
Place of publication California
Abstract Electro-conductive polyaniline (PANI) nanofiber based surface acoustic wave (SAW) gas sensors have been investigated with hydrogen (H 2) gas. A template-free, rapidly mixed method was employed to synthesize polyaniline nanofibers using chemical oxidative polymerization of aniline. The nanofibers were deposited onto a layered ZnO/64° YX LiNbO3 SAW transducer for gas sensing applications. The novel sensor was exposed to various concentrations of H2 gas at room temperature. The sensor response, defined as the relative variation in operating frequency of oscillation due to the introduction of the gas, was 3.04 kHz towards a 1% H2 concentration. A relatively fast response time of 8 sec and a recovery time of 60 sec with good repeatability were observed at room temperature. Due to room temperature operation, the novel gas sensor is promising for environmental and industrial applications.
Subjects Sensor Technology (Chemical aspects)
DOI - identifier 10.1109/ICSENS.2005.1597672
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