Chemiresistive gas sensors based on vanadium pentoxide reinforced polyvinyl alcohol/polypyrrole blend nanocomposites for room temperature LPG sensing

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

Chemiresistive gas sensors based on vanadium pentoxide reinforced polyvinyl alcohol/polypyrrole blend nanocomposites for room temperature LPG sensing

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

Chemiresistive gas sensors based on vanadium pentoxide reinforced polyvinyl alcohol/polypyrrole blend nanocomposites for room temperature LPG sensing

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

21001 - Nano-materials (production and properties)

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2021

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

SYNTHETIC METALS

ISSN

0379-6779

e-ISSN

—

Svazek periodika

273

Číslo periodika v rámci svazku

MAR 2021

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

19

Strana od-do

—

Kód UT WoS článku

000625882200003

EID výsledku v databázi Scopus

2-s2.0-85099553351