Gas sensors based on ZnSnO₃ and their performance.

Sensing materials	Morphology	Surface area (m2 g−1)	Target	Concentration (ppm)	Operating temp. (°C)	Response (Ra/Rg)	Response-recovery time (s)	Ref.
ZnSnO3	Hollow microspheres	62.50	Ethanol	500	320	144.3	7, 8	90
	Solid microspheres	40.43			260	80	4, 7
CeO2/ZnSnO3	Hollow microspheres	—	Ethanol	100	200	219.2	12, 22	172
CuO/ZnSnO3	Hollow microspheres	—	Ethanol	100	160	131	13, 8	173
Ag–ZnSnO3	Nanocubes	—	Ethanol	100	200	83.96	1, 50	174
ZnSnO3	Hollow microspheres	30.21	Ethanol	100	280	24	—	70
NiO/ZnSnO3	Microsphere-decorated fibers	60	Ethanol	20	160	23.95	56, 48	168
ZnSnO3	Hollow spheres	—	Ethanol	50	270	27.8	0.9, 2.2	127
ZnSnO3	2D nanosheets	85.1	HCHO	10	100	57	36, 42	175
	Nanocubes	59.7	Ethanol		200	20.3	41, 105
ZnSnO3	3D flower-like	—	Ethanol	1000	RT(25)	36.6	2, 14	170
ZnSnO3	Hollow nanocages	76.4	HCHO	50	350	57.6	3, 5	165
			Ethanol			34.5
			Acetone			23.6
ZnSnO3	Nanosheets	57.86	Ethanol	50	320	33	0.36, 9	94
			Acetone		440	41	0.18, 2.6
ZnSnO3	Nanocubes	71	TEA	100	350	57.5	41, 040	72
ZnSnO3	Hierarchical	67.8	HCHO	10	300	34.1	132, 15	171
ZnSnO3	Hollow cubes	98	HCHO	100	220	37.2	1, 59	124
ZnSnO3	Hollow cubes	—	HCHO	200	270	22.5	—	136
ZnSnO3	Nanocubes	70.001	HCHO	50	210	21.2	—	137
ZnSnO3	Porous nanostructures	—	HCHO	100	240	13.5	1, 10	176
ZnSnO3	Porous cubes	33.7	Toluene	100	300	16.56	2, 11	177
			HCHO			36.81	3, 12
Zn2SnO4	Hierarchical	23.7	Toluene	100	280	25.2	1, 3.5	178
	Spherical	20.6				19.2
	Cubic	9.1				11.7
ZnSnO3	Sheet-like	—	Acetone	100	350	125.44	7, 27	166
ZnSnO3/rGO	Hierarchical	33.14	Acetone	50	350	80.37	4, 27	179
Ag/ZnSnO3	Hollow nanocubes	19.1	Acetone	100	280	30	2, 3	167
ZnSnO3/SnO2	Concave microcubes	69.7	Acetone	50	260	19.1	5.6	180
ZnSnO3	Hollow polyhedrons	—	Acetone	50	240	12.48	17, 10	181
Au/In–ZnSnO3	Nanofibers	88.4	Acetone	50	200	19.3	10, 13	169
ZnSnO3	Nanocages	—	H2S	100	310	29.4	20, 50	128
ZnSnO3–C1	Hollow cubes	—	H2S	100	335	14.18	6, 22	182
ZnSnO3	Hollow hexahedron	152	CO2	400	RT	4, 65	73.2, 79.5	183
PdO–ZnSnO3	Hollow microspheres	—	n-Propanol	100	140	30.8	1, 25	184
ZnSnO3	Hollow spheres	53.91	n-Butanol	50	200	7.1	2, 40	185
ZnSnO3	Hollow microspheres	22.632	Butane	500	380	5.79	0.3, 0.65	126
	Solid microspheres	—				3.92	1.3, 13.7