Atomically dispersed Ir catalysts exhibit support-dependent water oxidation kinetics during photocatalysis.

ABSTRACT: Heterogeneous water oxidation catalysis is central to the development of renewable energy technologies. Recent research has suggested that the reaction mechanisms are sensitive to the hole density at the active sites. However, these previous results were obtained on catalysts of different materials featuring distinct active sites, making it difficult to discriminate between competing explanations. Here, a comparison study based on heterogenized dinuclear Ir catalysts (Ir-DHC), which feature the same type of active site on different supports, is reported. The prototypical reaction was water oxidation triggered by pulsed irradiation of suspensions containing a light sensitizer, Ru(bpy)₃²⁺, and a sacrificial electron scavenger, S₂O₈^2-. It

SUBMITTER: Zhang H 

PROVIDER: S-EPMC10283500 | biostudies-literature | 2023 Jun

REPOSITORIES: biostudies-literature