Depositing atom by atom: Pt–Ru–Co triple-atom catalysts

In this issue of Chem, Sun and co-workers report the synthesis of Pt–Ru–Co triple-atom catalysts immobilized on N-doped carbon nanotubes via atomic layer deposition. These asymmetric triple-atom sites exhibit high electrocatalytic activity for the hydrogen evolution and oxidation reactions as a result of the optimized electronic structure of the d orbitals.