Rational Design of Polymeric Electrocatalysts with Atomically Dispersed Platinum for Efficient and Durable Hydrogen Evolution

ABSTRACT Designing high‐performance platinum (Pt) single‐atom electrocatalysts for acidic hydrogen evolution reaction (HER) is of significance yet remains challenging. An elaborated design of support materials is crucial to address the key issues posed by the low concentration of hydrogen intermediates ( * H) and their weak adsorption on the Pt single atoms in high‐valence states. Herein, a cation‐π interaction engineering strategy was proposed to immobilize Pt single atoms onto N‑heterocyclic c