Modulating Ru-Co bond lengths in Ru₁Co single-atom alloys through crystal phase engineering for electrocatalytic nitrate-to-ammonia conversion.

ABSTRACT: Single atom alloys (SAAs) with maximum atomic efficiency and uniform active sites show great promise for heterogeneous catalytic applications. Meanwhile, crystal phase engineering has granered significant interest due to tailored atomic arrangements and coordination environments. However, the crystal phase engineering of SAAs remains challenging owing to high surface energy and complex phase transition dynamics. Herein, Ru₁Co SAAs with tunable crystal phases (hexagonal-close-packed (hcp), face-centered-cubic (fcc), and hcp/fcc structure) are successfully synthesized via controlled phase transitions. These SAAs exhibit distinct crystal phase-dependent performance towards nitrate reduction reaction (NO₃RR), where hcp-Ru₁Co outperforms its counterparts with a

SUBMITTER: Zhu X 

PROVIDER: S-EPMC12214835 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature