Efficient Near-Infrared Light-Driven Hydrogen Evolution Catalyzed by a Saddle-Distorted Porphyrin as a Photocatalyst

Development of a near-infrared (NIR) light-induced hydrogen (H-2) evolution system is indispensable for constructing a sustainable society wherein the utilization of solar energy is maximized. Here, we report NIR light-driven H-2 evolution catalyzed by a combination of a diprotonated saddle-distorted porphyrin as a photosensitizer and platinum nanoparticles as a H-2 -evolving catalyst. The quantum yield at 710 nm was determined to be 17%, which is the highest value among photocatalytic H-2-evolution systems ever reported.