CeO2 doped ZnO flower-like nanostructure sensor selective to ethanol in presence of CO and CH4

Highly Sensing Properties Sensors Based on Ce-doped ZnO and SnO2 Nanoparticles to Ethanol Gas

“…. On the other hand, the increasing in CeO2 doping concentration to 6 wt % may be cause a high covering of ZnO surface which reduce the available adsorption sites on ZnO surface and leads to the observed decrease in the sensitivity [Hamedani et al 2012]. While 2 wt % CeO2 doing is the more suitable concentration to enhance the sensitivity of SnO2 sensors towards ethanol gas.…”

Effect of terbium doping on structural, optical and gas sensing properties of In2O3 nanoparticles

“…It is known that ethanol can undergo two kinds of oxidation reaction i.e. dehydrogenation and dehydration on the surface of sensor which describe its sensing behavior as explained below [39] C 2 H 5 OH-CH 3 CHO þ H 2 ðBasic OxideÞ ð 11Þ…”

Hydrothermally synthesized CeO2 nanowires for H2S sensing at room temperature

“…Therefore, it has been widely used in the field of catalyst [1][2][3], photocatalyst [4][5], solid oxide fuel cells [6][7], oxygen pump [9] and luminescence materials [13][14][15]. Recently, CeO2 has also been proposed for one potential sensing material in the field of solid state gas sensors for environmental monitoring, such as CO [16,17], CH4 [17], O2 [18], NO2 [19], carbon disulfide [20] and humidity [21]. Nanostructured CeO2 could significantly enhance the gas sensing performance because of its characteristic structural and electronic properties as mentioned above.…”