The Characterization and Gas Sensing Properties of Polythiophene Coated V2O5 Nanotubes
Polythiophene (PTP) coated V2O5 nanotubes were prepared by an in-situ polymerization of thiophene monomers in the presence of prepared V2O5 nanotubes. The nanotubes were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM), which proved the polymerization of thiophene monomer and the strong interaction between polythiophene and V2O5 nanotubes (VONTs). The gas sensing properties of PTP coated V2O5 nanotubes were studied at room temperature, which was found that PTP coated V2O5 nanotubes could detect ethanol with much higher sensitivity than pure VONTs. The sensing mechanism of PTP coated V2O5 nanotubes to ethanol is presumed to be the synergetic interaction between polythiophene (PTP) and V2O5 nanotubes.
Jian-Feng Nie and Allan Morton
Y. Lu et al., "The Characterization and Gas Sensing Properties of Polythiophene Coated V2O5 Nanotubes", Materials Science Forum, Vols. 654-656, pp. 1154-1157, 2010