NiO-Based Gas Sensors for Ethanol Detection: Recent Progress

Table 2

Gas performance of doping NiO.

Material	Conc. (ppm)	Operating temp (°C)	Response	Response/recovery time (s/s)	LOD (ppb)	References
Ga-NiO	50	250	25	8/13	—	[88]
Al-NiO	100	228	14	73/76	—	[89]
Sc/Li-NiO	100	200	118.4	86/31	100	[91]
Fe-NiO	50	240	3.9	7/8	200	[92]
Mg-NiO	100	325	10.4	13/19	—	[93]