Interconnected CeO₂ Nanofibers for Enhanced CO Gas Sensing

Table 1

Comparison of recent reported CO sensing performance based on metal oxide gas sensors.

Materials	CO concentration (ppm)	Response	Response time (s)	Recovery time (s)	Ref.
ZnO nanoparticles	80	0.78	78	21	25
Au/CeO2 nanoparticles	30	0.43	9	7	26
TiO2 nanofibers	15	2.6	86	109	27
Co3O4 nanofibers	5	2.40	14	36	28
CuO/TiO2 nanoparticles	50	1.77	265	554	29
CeO2 nanofibers	500	2.82	2	4	This work