Fig. 10From: High Methanol Gas-Sensing Performance of Sm2O3/ZnO/SmFeO3 Microspheres Synthesized Via a Hydrothermal Methoda Response and recovery curve of the S3 to 5 ppm methanol gas at 195 °C. b Reversibility of S3 to 5 ppm methanol gas at 195 °C under 4 cycles. c The relationship between response and relative humidity to 5 ppm methanol gas of S3. d Stability of S3 toward 5 ppm methanol gas for 30 days at 195 °CBack to article page