Anchoring ultrafine metallic and oxidized Pt nanoclusters on yolk-shell TiO2 for unprecedentedly high photocatalytic hydrogen production

An alkali modified nanosheet-constructed yolk-shell NYTiO2-Pt light harvesting reactor has been designed for highly efficient photocatalytic H2 production under simulated solar light. Owing to the high surface area, highly dispersed Pt nanoclusters with metallic Pt0 and oxidized Pt2+ species and special yolk-shell structure, the NYTiO2-Pt-0.5 (0.188 wt% Pt) demonstrates an H2 evolution rate of (20.88 mmol h−1 g−1) with excellent photocatalytic stability under simulated solar light.191