Enhanced ethanol sensing performances of hetero-assembly Zn1-xFexO/rGO nanocomposites

Rational design of Bi-doped rGO/Co3O4 nanohybrids for ethanol sensing

“…The rGO nanosheets has a high electron mobility (), and could act as a medium to accept electrons. This facilitates the migration of carriers during the catalytic process, thus promoting the enhancement of sensing performances [31,32]. In this 1%BGCO nanohybrids system, when the sensing material was exposed to ethanol vapor gas, the ethanol molecules (CH3CH2OH) can react with the adsorbed oxygen species on the surface.…”

“…Recently, there are studies reported using Zn1-xFexO/rGO [31], SnO2-rGO [32], rGO-CuO [33] and MoO3-rGO [34] nanocomposites for the ethanol sensors. However, rGO/Co3O4 [35], Co3O4/N-doped rGO nanocomposites [8], and rGO decorated hollow Co3O4 nano/microspheres [7], are still deserved to be further investigated due to their low responses and high operating temperatures.…”

Enhanced Room-Temperature Ethanol Detection by Quasi 2D Nanosheets of an Exfoliated Polymeric Graphitized Carbon Nitride Composite-Based Patterned Sensor

“…Since these sensing materials operate at elevated temperatures, recent efforts have been directed toward the development of sensing materials that can be operated at room temperature. Recently, hybrid materials such as CuO-ZnO, 11 Gd 3+ -BaSnO 3 , 17 CNT@ZnSnO 3 , 5 Zn 0.89 Fe 0.11 O, 18 ZnFe 2 O NS, 1 and PdOx/Co 3 O 4 19 were reported to be ethanol sensitive at elevated temperatures. On the other hand, hybrid sensors consisting of PbS:SnS 2 , 6 oxidized single-walled carbon nanohorn-SnO 2 -polyvinylpyrrolidone, 4 hematite (α-Fe 2 O 3 )/silver nanoparticles, 20 ZIF-8&Ag@SiNWs, 7 and MoO 2 -Ni-graphene ternary composite 7 have been found to be effective for ethanol sensing at room temperature.…”