Fabrication and NO2 gas sensing performance of TeO2-core/CuO-shell heterostructure nanorod sensors

Table 2 Comparison of the responses of the TeO ₂ /CuO core-shell nanorod sensor with those of other oxide 1D nanostructure sensors

Nanomaterial	Temperature (°C)	NO₂concentration (ppm)	Response (%)	Reference
TeO₂ nanorods	150	0.5	123	Present work
TeO₂ nanorods	150	10	203	Present work
TeO₂-CuO nanorods	150	0.5	142	Present work
TeO₂-CuO nanorods	150	10	425	Present work
ZnO nanorods	300	0.1	35	[20]
ZnO nanowire	250	20	>95	[21]
ZnO nanobelt	350	8.5	81	[22]
ZnO fibers	100	0.4	50	[23]
WO3-core/ZnO-shell nanorods	300	5	281	[24]
TiO₂ nanofibers	300	0.25	7,430	[25]
In-doped SnO₂ nanoparticles	250	500	100	[26]
SnO₂ nanoribbon	RT	3	116	[27]
SnO₂ hollow spheres	160	5	1,150	[28]
Ru-doped SnO₂ nanowire	150	200	>3,000	[29]
WO₃-doped SnO₂ thin film	100	500	2,210	[30]
In₂O₃ nanowires	400	50	360	[31]
In₂O₃ nanowires	250	50	200	[32]
WO₃ nanorods	300	1	200	[33]
Au-doped WO₃ powders	150	10	350	[34]
Mesoporous WO₃ thin film	100	3	>200	[35]
MoO₃ lameller	180 to 300	10	118	[36]
CdO nanowire (porous)	100	150	>150	[37]
SnO₂-core/ZnO-shell nanofibers	300	70 to 2,000	20 to 320	[38]
ZnGa₂O₄-core/ZnO-shell nanowires	250	1	260	[39]