Platinum hydrosols in the sensitized photoreduction of water
Abstract
Pt hydrosols (22 Å diameter) catalyse H2 evolution from water with nearly 100% efficiency in the light-induced redox reaction which involves the Ru (2,2′-bipyridine)32+–methyl viologen–ethylenediamine-tetra-acetate model system; the catalytic step is not rate-determining.