Photoinduced Oxygen Evolution Catalysis Promoted by Polyoxometalate Salts of Cationic Photosensitizers.

ABSTRACT: The insoluble salt Cs₁₅K[Co₉(H₂O)₆(OH)₃(HPO₄)₂(PW₉O₃₄)₃] (CsCo₉) is tested as heterogeneous oxygen evolution catalyst in light-induced experiments, when combined with the homogeneous photosensitizer [Ru(bpy)₃]²⁺ and the oxidant Na₂S₂O₈ in neutral pH. Oxygen evolution occurs in parallel to a solid transformation. Post-catalytic essays indicate that the CsCo₉ salt is transformed into the corresponding [Ru(bpy)₃]²⁺ salt, upon cesium loss. Remarkably, analogous photoactivated oxygen evolution experiments starting with the [Ru(bpy)₃]_(5+x)K_(6-2x)

SUBMITTER: Soriano-Lopez J 

PROVIDER: S-EPMC6102367 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature