TY - GEN
T1 - Room temperature trimethylamine gas sensor based on aqueous dispersed graphene
AU - Ranola, Rey Alfred G.
AU - Concina, Isabella
AU - Sevilla, Fortunato B.
AU - Ferroni, Matteo
AU - Sangaletti, Luigi Ermenegildo
AU - Sberveglieri, Giorgio
AU - Comini, Elisabetta
PY - 2015
Y1 - 2015
N2 - A water dispersible graphene polymer nanocomposite was synthesized by solution blending method and deposited on 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 graphene/polystyrene-sulfonate nanocomposite were carried out by using Fourier-Transform infrared (FT-IR) spectroscopy, Raman spectroscopy, ultraviolet-visible (UV-Vis) spectroscopy and field-effect scanning electron (FE-SEM) microscope. While, electrical conductivity was measured using a four-point probe measurement. The prepared polymer nanocomposite has a percolation threshold around 0.30% vol. fraction, with a conductivity of 2.45 S/m (rsd = 3.0%, n=3). The response of the composite sensor exhibited linear range from 23 to 183 mg/L (r2=0.95713) and the sensitivity was at 1.72 × 10-3 ΔR/R mg L-1. The gas sensor exhibited repeatable response to TMA gas and the calculated limit of detection was at 22.67 mg/L.
AB - A water dispersible graphene polymer nanocomposite was synthesized by solution blending method and deposited on 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 graphene/polystyrene-sulfonate nanocomposite were carried out by using Fourier-Transform infrared (FT-IR) spectroscopy, Raman spectroscopy, ultraviolet-visible (UV-Vis) spectroscopy and field-effect scanning electron (FE-SEM) microscope. While, electrical conductivity was measured using a four-point probe measurement. The prepared polymer nanocomposite has a percolation threshold around 0.30% vol. fraction, with a conductivity of 2.45 S/m (rsd = 3.0%, n=3). The response of the composite sensor exhibited linear range from 23 to 183 mg/L (r2=0.95713) and the sensitivity was at 1.72 × 10-3 ΔR/R mg L-1. The gas sensor exhibited repeatable response to TMA gas and the calculated limit of detection was at 22.67 mg/L.
KW - Computer Science Applications1707 Computer Vision and Pattern Recognition
KW - Electrical and Electronic Engineering
KW - graphene
KW - polymer nanocomposites
KW - trimethylamine & chemiresistor
KW - Computer Science Applications1707 Computer Vision and Pattern Recognition
KW - Electrical and Electronic Engineering
KW - graphene
KW - polymer nanocomposites
KW - trimethylamine & chemiresistor
UR - https://publicatt.unicatt.it/handle/10807/98150
UR - https://www.scopus.com/inward/citedby.uri?partnerID=HzOxMe3b&scp=84937109945&origin=inward
UR - https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84937109945&origin=inward
U2 - 10.1109/AISEM.2015.7066827
DO - 10.1109/AISEM.2015.7066827
M3 - Conference contribution
SN - 9781479985913
SP - 1
EP - 4
BT - Proceedings of the 2015 18th AISEM Annual Conference, AISEM 2015
PB - Institute of Electrical and Electronics Engineers Inc.
ER -