Superfast and efficient hydrogen gas sensor using PdAualloy@ZnO core–shell nanoparticles

PdAu_alloy@ZnO CSNPs are prepared and evaluated for hydrogen detection with superior behavior with respect to pure ZnO. Improvement is attributed to .synergistically catalytic effects between Pd, Au and ZnO in PdAu_alloy@ZnO core–shell sensory system