Preparation and Characterisation of Surface Adsorbed Reduced Graphene Oxide/Polyaniline Nanocomposite on Polymer Membrane for Trimethylamine Sensing

Rey Alfred G. Rañola; Isabella Concina; Elisabetta Comini; Fortunato B. Sevilla; Giorgio Sberveglieri

doi:10.4028/www.scientific.net/AMR.1119.24

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 1119Preparation and Characterisation of Surface...

Preparation and Characterisation of Surface Adsorbed Reduced Graphene Oxide/Polyaniline Nanocomposite on Polymer Membrane for Trimethylamine Sensing

Abstract:

A graphene/polyaniline (rGO/PANi) nanocomposite was synthesized by solution blending method and deposited on to a nylon-6 membrane via vacuum assisted self-assembly (VASA) method to fabricate a flexible material applied as a chemoresistive gas sensor for trimethylamine (TMA). The morphological and structural characterization of surfaced adsorbed polymer nanocomposite was carried out by FT-IR, SEM, UV-Vis and surface profilometry. While, electrical property was carried out by four-point probe measurement. Prepared rGO/PANi nanocomposite has a percolation threshold around 0.40% vol. fraction, with a conductivity of 8.28 S/m (rsd = 3.0%, n=3) and thickness around 38.58 μm (rsd = 7.63%, n=3. The composite sensor exhibited linear range from 45 to 230 mg/L (r²= 0.9962) and the calculated limit of detection was 25.30 mg/L. It exhibited a repeatable response to TMA gas.

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Periodical:

Advanced Materials Research (Volume 1119)

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24-28

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1119.24

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Online since:

July 2015

Authors:

Rey Alfred G. Rañola*, Isabella Concina, Elisabetta Comini, Fortunato B. Sevilla, Giorgio Sberveglieri

Keywords:

Chemiresistor, Graphene Nanocomposite, Surface Adsorbed Nanocomposite, Trimethylamine

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