High Methanol Gas-Sensing Performance of Sm2O3/ZnO/SmFeO3 Microspheres Synthesized Via a Hydrothermal Method

Table 1 Textural properties of porous microsphere measurements of S1, S2, S3, and S4

Sample	Surface area (m²/g)	Average pore size (nm)	Pore volume (cm³/g)
S1	21.159	31.077	0.118
S2	26.150	31.046	0.156
S3	27.597	26.398	0.166
S4	20.714	32.339	0.156