Identifying and tuning coordinated water molecules for efficient electrocatalytic water oxidation.

ABSTRACT: Coordination complexes are promising candidates for powerful electrocatalytic oxygen evolution reaction but challenges remain in favoring the kinetics behaviors through local coordination regulation. Herein, by refining the synergy of carboxylate anions and multiconjugated benzimidazole ligands, we tailor a series of well-defined and stable coordination complexes with three-dimensional supramolecular/coordinated structures. The coordinated water as potential open coordination sites can directly become intermediates, while the metal center easily achieves re-coordination with water molecules in the pores to resist lattice oxygen dissolution. In situ experiments and theory simulations indicate that nickel centers with neighboring coordinated water molecules follow an intramolecular oxygen co

SUBMITTER: Zhang G 

PROVIDER: S-EPMC11686141 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature