Electrochemical activation of Ru catalyst with alkaline ion conductors for the catalytic decomposition of ammonia

This study reports the electrochemical activation (EPOC) of ruthenium catalyst film with alkaline ion conductors for hydrogen production via catalytic decomposition ammonia. Two electrocatalysts, Ru/Na-?Al2O3 and Ru/K-?Al2O3 have been prepared, characterized, tested under low temperature reaction conditions (250–350 °C). The electrochemically supply moderate amounts ions (Na+ K+) from solid electrolyte support to film, activated rate. promotional effect has attributed a strengthening chemisorptive bond weakly adsorbed N surface species, which stabilizes molecules on thus facilitating ammonia reaction. Among two alkali ions, potassium was stronger, increasing rate above 230% at 300 °C optimally conditions. Temperature programmed experiments also confirms interest EPOC temperatures.