Design and development of highly sensitive PEDOT-PSS/AuNP hybrid nanocomposite-based sensor towards room temperature detection of greenhouse methane gas at ppb level.

Autor: Khasim S; Department of Physics, Faculty of Science, University of Tabuk Tabuk-71491 Kingdom of Saudi Arabia syed.pes@gmail.com.; Renewable Energy Laboratory, Nanotechnology Research Unit, University of Tabuk Tabuk-71491 Kingdom of Saudi Arabia., Pasha A; Department of Physics, Ghousia College of Engineering Ramanagaram-562159 Karnataka India., Badi N; Department of Physics, Faculty of Science, University of Tabuk Tabuk-71491 Kingdom of Saudi Arabia syed.pes@gmail.com.; Renewable Energy Laboratory, Nanotechnology Research Unit, University of Tabuk Tabuk-71491 Kingdom of Saudi Arabia., Ltaief A; Department of Physics, Faculty of Science, University of Tabuk Tabuk-71491 Kingdom of Saudi Arabia syed.pes@gmail.com., Al-Ghamdi SA; Department of Physics, Faculty of Science, University of Tabuk Tabuk-71491 Kingdom of Saudi Arabia syed.pes@gmail.com.; Renewable Energy Laboratory, Nanotechnology Research Unit, University of Tabuk Tabuk-71491 Kingdom of Saudi Arabia., Panneerselvam C; Department of Biology, Faculty of Science, University of Tabuk Tabuk-71491 Kingdom of Saudi Arabia.
Jazyk: angličtina
Zdroj: RSC advances [RSC Adv] 2021 Apr 22; Vol. 11 (25), pp. 15017-15029. Date of Electronic Publication: 2021 Apr 22 (Print Publication: 2021).
DOI: 10.1039/d1ra00994j
Abstrakt: Herein, we present fabrication of a novel methane sensor based on poly (3,4-ethylenedioxythiophene:poly (styrene sulfonic acid)) (p-PEDOT-PSS) and gold nanoparticles (AuNPs) treated with dimethyl sulfoxide (DMSO) and Zonyl using a spin coating technique. The nanocomposite films were further post treated with H 2 SO 4 to improve the charge transport mechanism. The structural and morphological features of the composites were analyzed through scanning electronic microscopy, transmission electron microscopy, Fourier transform infra-red spectroscopy, UV-Vis spectroscopy and thermogravimetric analysis. Treatment with organic solvents and post treatment of H 2 SO 4 significantly enhances the conductivity of the composite to 1800 S cm -1 . The fabricated sensor shows an excellent sensing response, fast response and recovery time along with acceptable selectivity towards methane gas at ppb concentrations. Due to a simple fabrication technique, excellent conductivity, superior sensing performance and improved mechanical properties, the sensor fabricated in this study could potentially be used to detect greenhouse methane gas at low concentrations.
Competing Interests: Authors listed in the manuscript certify that they have NO affiliations with or involvement in any organization or entity with any financial interest or non-financial interest in the subject matter or materials discussed in this manuscript.
(This journal is © The Royal Society of Chemistry.)
Databáze: MEDLINE
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