Hydrogen Production via Cerium-Promoted Dehydrogenation of Formic Acid Catalyzed by Carbon-Supported Palladium Nanoparticles

High Resolution Image Download MS PowerPoint Slide Formic acid is a promising hydrogen carrier owing to its high hydrogen density and liquid phase. Therefore, the production of hydrogen from formic acid via catalytic dehydrogenation reaction has been extensively studied. Various methods such as alloying of the active Pd metal with other metals and adding dopants (e.g., the amine-functional group, nitrogen, or metal oxide) have been suggested to enhance the catalytic activities for formic acid dehydrogenation. In this study, we synthesized carbon-supported palladium nanoparticles coexisting with ceria particles and investigated the role of cerium in this reaction over Pd/C catalysts. We made an effort not to change the particle size and the electronic state of Pd significantly while varying Ceria/Pd molar ratios in the catalysts, ruling out their effects on the reaction. Ceria was impregn…