Structural and room temperature gas sensing properties of polyaniline/titania nanocomposite
作者： Milad Moradian , Shahruz Nasirian
DOI: 10.1016/J.ORGEL.2018.08.006
关键词:
摘要: Abstract Polyaniline-emeraldine (PE) and polyaniline/titania nanocomposites (PTNs) were prepared using an in-situ self-assembly chemical oxidative polymerization of aniline monomers in the absence presence different wt% titania (TiO2) nanoparticles, respectively. The structural morphological properties PE PTNs evaluated by X-ray diffraction, Fourier transform infrared spectroscopy scanning electron microscopy. Moreover, deposited on epoxy glass substrate with finger type Cu-interdigited electrodes as liquefied petroleum gas (LPG) sensor. A PTN sensor 40 wt% TiO2 nanoparticles was exhibited response value response/recovery time 43.2% 76/95 s, respectively, toward 0.4 vol% LPG concentration. Our handmade excellent reproducibility stability period 16 weeks a small degradation about 7%. results sensing for gases revealed has selectivity to gas. Furthermore, factors affecting performance plausible mechanism are discussed.
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