Abstract
Porous nanosheet ZnO was synthesized by the simple hydrothermal process, and its structure and morphology were characterized by XRD, SEM, TEM and BET. The ZnO sensor was constructed based on the ZnO material, and the gas-sensing performance test results showed that the ZnO-based sensor has good sensitivity and stability to methane at a lower temperature of 140 °C. It improves the gas sensing property of reported methane sensors. The significant gas sensitivity of the ZnO-based sensor may stem from the unique porous nanosheet structure of the ZnO.
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