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Research Article Volume 4 Issue 4
Screen printed electrodes based on polymer/MWCNT and polymer/G nanocomposite for advanced gas sensing application
Anita Grozdanov, Iva Dimitrievska, Perica Paunovic, Aleksandar Petrovski
Received: July 22, 2020 | Published: August 11, 2020
Citation: Grozdanov A, Dimitrievska I, Paunovic P, et al. Screen printed electrodes based on polymer/MWCNT and polymer/G nanocomposite for advanced gas sensing application. Material Sci & Eng. 2020;4(4):102-108. DOI: 10.15406/mseij.2020.04.00135
Abstract
This paper reported the results of application of screen printed electrodes (SPE) based on polymer/carbon nanostructures (multi wall carbon nanotubes – MWCNT and grapheme – G) for gas sensors. Commercial SPEs were modified by polymers such as conductive polymer Poly Vinylidene Fluorid – PVDF and biocompatible Poly Ethylene Glycol – PEG. Modified SPEs were tested in ammonia vapors with different concentration: 3, 6.2, 12.5 and 25% (wt.). Sensor-testing was performed by monitoring the change in the electrical resistance of the electrodes. The physical characterization of the sensing electrodes was performed by Scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FTIR) in ATR mode. The surface morphology of CNT/PEG and CNT/PVDF modifications, after coating with 25% NH3, expressed the effects of ammonia on the surface of the nanocomposite layer. The ammonia solution acts aggressively on the modified surface, causing furrows to form in the uniform structure and very small nano-rods of oxides.
Keywords: gas sensor, MWCNT, graphene, screen printed electrode
©2020 Grozdanov, et al. This is an open access article distributed under the terms of the, which permits unrestricted use, distribution, and build upon your work non-commercially.