Rethinking Electronic Effects in Photochemical Hydrogen Evolution Using CuInS₂@ZnS Quantum Dots Sensitizers.

ABSTRACT: Molecular catalysts based on coordination complexes for the generation of hydrogen via photochemical water splitting exhibit a large versatility and tunability of the catalytic properties through chemical functionalization. In the present work, we report on light-driven hydrogen production in an aqueous solution using a series of cobalt polypyridine complexes as hydrogen evolving catalysts (HECs) in combination with CuInS₂@ZnS quantum dots (QDs) as sensitizers, and ascorbate as the electron donor. A peculiar trend in activity has been observed depending on the substituents present on the polypyridine ligand. This trend markedly differs from that previously recorded using [Ru(bpy)₃]²⁺ (where bpy = 2,2'-bipyridine) as the sensitizer and can be ascribed to dif

SUBMITTER: Orlando A 

PROVIDER: S-EPMC9735784 | biostudies-literature | 2022 Nov

REPOSITORIES: biostudies-literature