Chemiresistive gas sensors based on vanadium pentoxide reinforced polyvinyl alcohol/polypyrrole blend nanocomposites for room temperature LPG sensing
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23640%2F21%3A43962557" target="_blank" >RIV/49777513:23640/21:43962557 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1016/j.synthmet.2020.116687" target="_blank" >https://doi.org/10.1016/j.synthmet.2020.116687</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.synthmet.2020.116687" target="_blank" >10.1016/j.synthmet.2020.116687</a>
Alternative languages
Result language
angličtina
Original language name
Chemiresistive gas sensors based on vanadium pentoxide reinforced polyvinyl alcohol/polypyrrole blend nanocomposites for room temperature LPG sensing
Original language description
In the present study, polyvinyl alcohol (PVA)/polypyrrole (WPPy)/vanadium pentoxide (V2O5) nanocomposite films were successfully synthesized by the solution casting method. The structural, optical, thermal and morphological properties of flexible PVA/WPPy/V2O5 nanocomposite films were investigated using Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), UV–vis spectroscopy (UV), thermogravimetric analysis (TGA), scanning electron microscopy (SEM) and atomic force microscopy (AFM). The mechanical property investigations of PVA/WPPy/V2O5 nanocomposite films revealed excellent flexibility and enhanced ultimate tensile strength. Furthermore, the sensing properties were evaluated to ascertain the effects of V2O5 on the sensitivity, selectivity, and response/recovery time of PVA/WPPy/V2O5 nanocomposite films. The maximum sensitivity (S) of 1.16% towards liquid petroleum gas (LPG) detection at a 600 ppm concentration at room temperature (RT) with response/recovery times of ~ 10/8 s was observed for nanocomposites with 15 wt% V2O5 loading in a PVA/WPPy blend matrix. The same composition of the nanocomposite film exhibit excellent selectivity for LPG over other tested volatile organic compounds (VOCs) such as acetone, benzene, xylene, and toluene. These results demonstrate that PVA/WPPy/V2O5 nanocomposite film with 15 wt% V2O5 loading is an ideal material as a chemiresistive sensor for the qualitative detection of LPG.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
21001 - Nano-materials (production and properties)
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
SYNTHETIC METALS
ISSN
0379-6779
e-ISSN
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Volume of the periodical
273
Issue of the periodical within the volume
MAR 2021
Country of publishing house
CH - SWITZERLAND
Number of pages
19
Pages from-to
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UT code for WoS article
000625882200003
EID of the result in the Scopus database
2-s2.0-85099553351