羰基合成与选择氧化国家重点实验室（OSSO）知识库

Photocatalytic hydrogen production from water splitting is an attractive scientific and technological route to address the increasing global demand for clean energy and to reduce the climate change impact of CO₂ emission. Although tremendous efforts have been made, hydrogen generation from pure water by an efficient semiconductor catalyst driven by visible light still remains a significant challenge. Herein we present an effective photocatalyst based on Ce-doped WO₃ and CdS powders embedded into platinum (Pt) layer. With the help of artificial blood component perfluorodecalin (PFDL), our system achieved 186.2 μmol.g_catalyst^-1 H₂ in 4 h without sacrifice reagent under visible light irradiation and maintained excellent stability in 24 h without obvious decay. The hydrogen evolution activity and excellent stability are assigned to the enhancement of the electrons and holes relay and transfer by Pt layer, and the removal of nascent oxygen from catalyst via CeO₂ and artificial blood PFDL path, and the suppression of undesirable hydrogen and oxygen recombination reverse reaction.