Maximize the Electrocatalytic Activity of Pt Toward Ethanol Oxidation via Engineering PdPt₁ Single-Atom Alloy Skin.

ABSTRACT: Single-atom alloys (SAAs) emerge as an intriguing model system for electrocatalysis by combining the advantages of single-atom catalysts and nanoalloys, yet it faces the challenge in engineering their surface structure at the atomic level. Herein, to fully utilize active Pt sites to boost ethanol oxidation electrocatalysis, single-Pt-atoms anchored onto the surface of intermetallic Pd₅Bi₃ core-ultrathin Pd shell octahedrons, namely a tensile-strained PdPt₁ SAA skin, were rationally designed and engineered. This unique PdPt₁ SAA skin achieves a record-high mass activity (553.58 A mg_Pt ^-1 or 34.73 A mg_Pt+Pd ^-1) and outstanding durability toward ethanol oxidation in alkaline electrolyte, outperforming the

SUBMITTER: Chen W 

PROVIDER: S-EPMC12921340 | biostudies-literature | 2026 Feb

REPOSITORIES: biostudies-literature