NiO-Based Gas Sensors for Ethanol Detection: Recent Progress

Table 3

Gas performance of NiO functional by precious metal particles.

Material	Conc. (ppm)	Operating temp (°C)	Response	Response/recovery time (s/s)	References
Au-NiO	100	200	2.54	250/420	[95]
Au-NiO	1000	325	442%	-/-	[97]
Pt-NiO	100	200	20.85	-/-	[96]