Hydrogen Gas Sensor Based on Highly Ordered Polyaniline/Multiwall Carbon Nanotubes Composite
In this work, the structural and gas sensing properties of an electropolymerized, polyaniline (PANI)/multiwall carbon nanotube (MWNT) composite based surface acoustic wave (SAW) sensor are reported. Thin films made of PANI nanofibers were deposited onto 36 lithium tantalate (LiTaO3)
SAW transducers using electropolymerization and were subsequently dedoped. Scanning electron microscopy (SEM) revealed the compact growth of the composites which is much denser than that of PANI nanofibers. The PANI/MWNT composite based SAW sensor was then exposed to different concentrations
of hydrogen (H2) gas at room temperature with a demonstrated electrical response.
Keywords: H2 SENSOR; POLYANILINE/MULTIWALL CARBON NANOTUBE COMPOSITE; SURFACE ACOUSTIC WAVE
Document Type: Research Article
Publication date: 01 April 2011
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