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

Formic acid is a promising hydrogen carrier owing to its high density and liquid phase. Therefore, the production of from formic via catalytic dehydrogenation reaction has been extensively studied. Various methods such as alloying active Pd metal with other metals adding dopants (e.g., amine-functional group, nitrogen, or oxide) have suggested enhance activities for dehydrogenation. In this study, we synthesized carbon-supported palladium nanoparticles coexisting ceria particles investigated role cerium in over Pd/C catalysts. We made an effort not change particle size electronic state significantly while varying Ceria/Pd molar ratios catalysts, ruling out their effects on reaction. Ceria was impregnated carbon by incipient wetness impregnation; subsequently, Ceria/C deposition–precipitation. The tests demonstrated that improved rate producing formate anions, main reactant reaction, it dissolved during More importantly, ions accelerated interacting anion charge, thereby reducing activation barrier C–H bond cleavage. promoted could be used develop highly efficient extraction system acid.