ABSTRACT
This chapter deals with photocatalytic hydrogen-evolution systems comprising a photosensitizer, an electron donor, and a hydrogen evolution catalyst. First, photoinduced electron-transfer behavior is described in an electron donor−acceptor linked dyad used as a photosensitizer. Then, electron transfer to the photosensitizer in the electron-transfer state from a sacricial electron donor and electron injection from the photosensitizer in the electron-transfer state to metal nanoparticles is summarized. Finally, the hydrogen-evolution catalysis of the metal nanoparticles depending on sizes, shapes, supports, and crystal structures of the particles is reviewed.
