TY - JOUR
T1 - Graphene oxide (GO) coated impedimetric gas sensor for selective detection of carbon dioxide (CO2) with temperature and humidity compensation
AU - Akhter, Fowzia
AU - Alahi, Md. Eshrat E.
AU - Siddiquei, Hasin R.
AU - Goonerate, Chinthaka P.
AU - Mukhopadhyay, Subhas Chandra
PY - 2021/2/15
Y1 - 2021/2/15
N2 - Design and development of a low-cost, low-power, miniature, highly sensitive, and selective carbon dioxide (CO2) sensor is an active research area due to the rapid rise of CO2
closed to 408 ppm in the atmosphere because of the industrial
revolution. This research proposes a highly sensitive planar
interdigital sensor coated with graphene oxide (GO) to induce
selectivity towards CO2
. The performance of the sensor has been analysed with various temperatures, humidities, and different CO2
concentrations. The developed sensor has been characterised using
Electrochemical Impedance Spectroscopy (EIS). The calibration standard
has been developed for a range of CO2
concentrations from 400 ppm to 4000 ppm. The standard gas
chromatography (GC) method is used to validate all the results. The
temperature and humidity compensation mechanisms are also included to
improve the detection ability for determining the CO2
gas concentration from unknown gas samples. Repeatability,
reproducibility, stability, cross-sensitivity, response, and recovery
time are also tested. The obtained results are highly encouraging to
develop a low-cost smart CO2
gas sensing system for both indoor and outdoor environmental applications.[Graphic presents]
AB - Design and development of a low-cost, low-power, miniature, highly sensitive, and selective carbon dioxide (CO2) sensor is an active research area due to the rapid rise of CO2
closed to 408 ppm in the atmosphere because of the industrial
revolution. This research proposes a highly sensitive planar
interdigital sensor coated with graphene oxide (GO) to induce
selectivity towards CO2
. The performance of the sensor has been analysed with various temperatures, humidities, and different CO2
concentrations. The developed sensor has been characterised using
Electrochemical Impedance Spectroscopy (EIS). The calibration standard
has been developed for a range of CO2
concentrations from 400 ppm to 4000 ppm. The standard gas
chromatography (GC) method is used to validate all the results. The
temperature and humidity compensation mechanisms are also included to
improve the detection ability for determining the CO2
gas concentration from unknown gas samples. Repeatability,
reproducibility, stability, cross-sensitivity, response, and recovery
time are also tested. The obtained results are highly encouraging to
develop a low-cost smart CO2
gas sensing system for both indoor and outdoor environmental applications.[Graphic presents]
UR - http://www.scopus.com/inward/record.url?scp=85098799118&partnerID=8YFLogxK
U2 - 10.1109/JSEN.2020.3035795
DO - 10.1109/JSEN.2020.3035795
M3 - Article
AN - SCOPUS:85098799118
SN - 1530-437X
VL - 21
SP - 4241
EP - 4249
JO - IEEE Sensors Journal
JF - IEEE Sensors Journal
IS - 4
ER -