Sustained Hydrogen Spillover on Pt/Cu(111) Single‐Atom Alloy: Dynamic Insights into Gas‐Induced Chemical Processes

and sticking H atoms facilitate H spillover onto the host Cu, leading to the reactivation of the Pt atom and the realization of a continuous H spillover process. This work underscores the importance of the interaction between gas molecules and adsorbates as a driving force in elucidating chemical processes under a gaseous atmosphere, which has so far been underappreciated in thermodynamic studies.