Development of near-infrared (NIR) lightinduced hydrogen (H2) evolution system is indispensable to construct a sustainable society to maximize the utilization of solar energy. Here, we report NIR light-driven H2 evolution catalyzed by a combination of a diprotonated saddle-distorted porphyrin as a photosensitizer and platinum nanoparticles as a H2-evolving catalyst. The quantum yield at 710 nm was determined to be 17%, which is the highest value among photocatalytic H2-evolution systems ever reported.
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