Molecularly engineered water oxidation sites in D-A conjugated polymers for efficient H2O2 photosynthesis in pure water (IMAGE)

Science China Press

Molecularly engineered water oxidation sites in D-A conjugated polymers for efficient H2O2 photosynthesis in pure water

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D-A conjugated polymers with distinct donor units (biphenyl, bithiophene, and bipyridine) were engineered to regulate the kinetics of water oxidation sites for effective H2O2 photocatalysis. Among the three polymers, the bipyridine exhibits the highest performance, achieving an attractive H2O2 production rate of 6687 μmol g-1 h-1 by promoting charge separation, accelerating water oxidation kinetics, and stabilizing superoxide radicals, thereby optimizing H2O2 synthesis.

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