Ultrafine PdAg nanoparticles immobilized on nitrogen-doped carbon/cerium oxide for superior dehydrogenation of formic acid

The development of safe and efficent hydrogen storage/release is critical for achievement of a fuel-cell-based hydrogen economy. In this work, the ultrafine PdAg NPs with the size of 2.5 nm were successfully immobilized on cerium oxide/nitrogen-doped carbon (CeOx-NPC). By virtue of strong metal/support interaction, the obtained PdAg/CeOx-NPC exhibits excellent catalytic property of FA decompostion at room temperature and the turnover frequency (TOF) reaches a high value of 875 h-1. The remarkable catalytic property of PdAg/CeOx-NPC result from small and high dispered PdAg NPs and synergistic effect between bimetallic system. Also, the strong metal-support interaction efficiently improve the catalytic property of bimetallic catalytic system.