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Gas Sensing and Power Harvesting Polyvinylidene Fluoride Nanocomposites Containing Hybrid Nanotubes

descriptionPublicationkeyboard_double_arrow_right Article , Conference object , Other literature type , Journal 03 Jan 2020 Qatar Publisher:Springer Science and Business Media LLCJournal:Journal of Electronic Materials, volume 49, pages 2,677-2,687 (issn: 0361-5235, eissn: 1543-186X,

Authors: Deepalekshmi Ponnamma; Mariam Al Ali Al-Maadeed; Mariam Al Ali Al-Maadeed; Ashok K. Sharma; Priya Saharan;

doi: 10.1007/s11664-019-07915-y , 10.57945/manara.21597588.v1 , 10.57945/manara.21597588

handle: 10576/27463

Gas Sensing and Power Harvesting Polyvinylidene Fluoride Nanocomposites Containing Hybrid Nanotubes

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Abstract

AbstractGas sensing properties at room temperature and energy harvesting performances are realized for the polyvinylidene fluoride (PVDF) nanocomposites containing titanium dioxide (TiO2) nanotubes grown in the presence of carbon nanotubes (CNT). While hydrothermal reaction is practiced for the development of TiO2/CNT hybrid nanotubes, spin coating is done for the nanocomposite films to be deposited on sensing electrodes. Influence of various filler concentrations and the synergistic combination of fillers on the sensing characteristics are studied by recording the response times and the stability of the results. Upon exposure to liquefied petroleum gas, the PVDF/TiO2-CNT (2.5 wt.%) gas sensor shows a sensing response of 0.45 s (400 ppm LPG), approximately nine times higher than the composite containing 2.5 wt.% of TiO2 or 2.5 wt.% CNT. The piezoelectric response of the samples is also recorded and correlated with the synergistic influence of the filler materials. The current study can stimulate a good trend in fabricating self-powered gas sensors from PVDF nanocomposites.

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Keywords

Polyvinylidene fluorides, Synergistic combinations, Carbon nanotubes, Chemical detection, Nanocomposite films, Gas sensing electrodes, Nanocomposites, Sensing characteristics, Gas sensing properties, Fluorine compounds, Nanotechnology, Macromolecular and materials chemistry, FOS: Nanotechnology, Energy harvesting, Titanium dioxides (TiO2), Nanogenerator, 600, Gas detectors, Liquefied petroleum gas, Fillers, Solvent vapors, Chemical sensors, Titanium dioxide, Gases, TiO2 nanoparticles, Gas sensing

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	impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.	Top 10%