Design and development of a novel humidity-tolerant gas-sensing material for reliable and high-performance ethanol detection

sensor, operating at 100 °C, demonstrated a high response (∼43) to 100 ppm ethanol, with fast response and recovery, a low detection limit (∼7.57 ppm), and excellent stability over 20 days (<10% variation) under fluctuating humidity. These superior performances are attributed to the synergistic effects of Sb doping and Pt loading, which improve ethanol sensitivity and suppress humidity interference. Owing to its low working temperature, fine particle size, high sensitivity, and robust durability, the sensor offers a promising platform for real-time ethanol monitoring in humid environments.