Journal
SUSTAINABLE ENERGY & FUELS
Volume 4, Issue 10, Pages 5264-5270Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/d0se00928h
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Funding
- Ministry of Science and Technology of Taiwan [MOST 109-2636-E-007-021]
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We have designed and synthesized a series of conjugated polymers with fluorene or carbazole and phenylphosphine oxide derivatives as polymer photocatalysts for visible-light-driven hydrogen evolution. The optimized polymer photocatalyst PCzBPO provided an excellent hydrogen evolution rate (HER) over two-orders of magnitude greater than its counterparts under otherwise identical conditions due to their unique combined effects of the introduced strong electron-withdrawing group, planar structure, extended conjugation length, and efficient charge transfer between donor/acceptor. Moreover, the PCzBPO exhibited an excellent HER with a record high apparent quantum yields (AQYs) of 14.92 +/- 0.10% at 420 nm and 14.88 +/- 0.08% at 460 nm with the residual palladium content and the absence of Pt cocatalysts. We believe that this systematic study on phenylphosphine oxide-containing polymers as ideal polymer photocatalysts could inspire further optimization and greater molecular design strategies in the development of high-performance photocatalysts to give a high impact in this field.
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