This work reports a simple, rapid, effective and reliable CH4 sensor based on Pd-loaded SnO2 hollow spheres with high surface area and porosity, which is of great importance to gas sensing performance.
We propose a facile soft template-mediated coupling construction strategy for one-step fabrication of sandwiched mesoporous PPy/Ag nanoplates at the liquid interface, and the hybrid showed great chemical sensing performance for NH3 gas.