Ammonia is a premier medium for transporting green energy, but unlocking its hydrogen content via electrochemical cracking is currently hindered by catalyst instability and high energy consumption. This presentation outlines two catalyst design strategies that overcome these barriers to establish a practical route for decentralised hydrogen production. First, we demonstrate a facet engineering approach using pulsed electrodeposition to synthesise dendritic platinum nanostructures dominated by Pt(100) facets. By shifting the rate-determining step to facilitate *N2 desorption, this catalyst resists surface poisoning, delivering a record 500 hours of stable operation at room temperature. Second, we report a dynamic self-activation mechanism on Pt-decorated NiFe foams. Contrary to the typical decay observed in ammonia oxidation, these anodes increase in activity during operation, driven by a continuous bias-induced reconstruction of the Ni(OH)2/NiOOH interface. This dynamic renewal suppresses poisoning and enables industrial-level current densities of up to 3 A/cm2 at 80 oC. Together, these technologies achieve specific energy consumptions (US$6.5-12.9 kWh/kg-H2) competitive with centralised thermal cracking, effectively unlocking a viable pathway for the green hydrogen economy.