The role of colloid formation in the photoinduced H2 production with a RuII-PdII supramolecular complex:: A study by GC, XPS, and TEM

The dinuclear Run(II)-Pd-II complex shows efficient H-2 production in the presence of triethylamine as a sacrificial electron and proton donor under visible light irradiation. XPS and TEM analyses reveal that photoreduction of Pd-II to Pd-0 causes dissociation of Pd from the complex to form colloids that are suggested to be the actual catalyst for H-2 production.