Scientists have made a huge leap forward in hydrogen and ammonia production by developing a ruthenium‑based catalyst that exploits the solvent dynamics‑limiting effect to form homoatomic fcc/hcp interfaces. “That might sound technical, but here’s the bottom line: these structures help reduce resistance where different materials meet, making it easier for charge to flow through,” enabling efficient reactions across acidic, neutral, and alkaline media—a clear win for sustainable energy tech.