Research reveals enhanced hydrogen evolution rates in engineered hydrogen-bonded organic frameworks, suggesting new design strategies for photocatalysts.
Rational band-gap engineering in hydrogen-bonded organic frameworks (HOFs) remains challenging. Based on HOF-102, π extended donor–acceptor building units were designed to construct isoreticular HOFs with tunable band gaps (2.46–1.86 eV). The optimized HOF-1022(CN) exhibits enhanced charge transfer and suppressed recombination, achieving a hydrogen evolution rate of 168.2 mmol g−1 h−1 (8.5 fold increase) and an AQY of 7.3% at 420 nm. This first band-gap engineering of HOFs establishes a general design strategy for high performance photocatalysts, as reported in the Research Article (e25987) by Hongyu Chen, Peng Li, and co-workers.
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Mo et al. (2026) studied this question.
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