TY  - JOUR
Y1  - 2021///
VL  - 14
A1  - Lee, Z.Y.
A1  - Hawari, H.F.B.
A1  - Djaswadi, G.W.B.
A1  - Kamarudin, K.
JF  - Materials
UR  - https://www.scopus.com/inward/record.uri?eid=2-s2.0-85099744286&doi=10.3390%2fma14030522&partnerID=40&md5=323b989e21d2059e5477302add254e7a
ID  - scholars15231
KW  - Carbon dioxide; Chemical sensors; Field emission microscopes; Gas detectors; Gases; Graphene; Low power electronics; Reduced Graphene Oxide; Scanning electron microscopy; Tin dioxide; Tin oxides; X ray photoelectron spectroscopy
KW  -  Carbon dioxide concentrations; Energy dispersive x-ray; Energy-density batteries; Field emission scanning electron microscopy; Low detection limit; Material characterization techniques; Reduced graphene oxides (RGO); Transport capabilities
KW  -  High resolution transmission electron microscopy
N2  - A tin oxide (SnO2 ) and reduced graphene oxide (rGO) hybrid composite gas sensor for high-performance carbon dioxide (CO2 ) gas detection at room temperature was studied. Since it can be used independently from a heater, it emerges as a promising candidate for reducing the complexity of device circuitry, packaging size, and fabrication cost; furthermore, it favors integration into portable devices with a low energy density battery. In this study, SnO2-rGO was prepared via an in-situ chemical reduction route. Dedicated material characterization techniques including field emission scanning electron microscopy (FESEM), high-resolution transmission electron microscopy (HRTEM), energy dispersive X-ray (EDX) spectroscopy, Raman spectroscopy, and X-ray photoelectron spectroscopy (XPS) were conducted. The gas sensor based on the synthesized hybrid composite was successfully tested over a wide range of carbon dioxide concentrations where it exhibited excellent response magnitudes, good linearity, and low detection limit. The synergistic effect can explain the obtained hybrid gas sensorâ??s prominent sensing properties between SnO2 and rGO that provide excellent charge transport capability and an abundance of sensing sites. © 2020 by the authors. Licensee MDPI, Basel, Switzerland.
IS  - 3
PB  - MDPI AG
SN  - 19961944
EP  - 16
AV  - none
SP  - 1
TI  - A highly sensitive room temperature co2 gas sensor based on sno2-rgo hybrid composite
N1  - cited By 28
ER  -