In this study, we report on the rapid preparation of WO3 nanoplates decorated with noble metals and evaluate their gas-sensing performance using a high-throughput screening technique. The incorporation Pd significantly enhanced properties, and, among all samples tested, nanoplate containing 0.3 mol% exhibited highest response to 100 ppm xylene at 250 °C (Ra/Rg = 131.2), which was almost 56 time...