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Tian, Jia; Zhang, Yifan; Du, Lili; He, Yunxiang; Jin, Xu-Hui; Pearce, Samuel; Eloi, Jean-Charles; Harniman, Robert L; Alibhai, Dominic; Ye, Ruquan; Phillips, David Lee; Manners, Ian
Nature chemistry, 12/2020, Letnik: 12, Številka: 12Journal Article
The creation of efficient artificial systems that mimic natural photosynthesis represents a key current challenge. Here, we describe a high-performance recyclable photocatalytic core-shell nanofibre system that integrates a cobalt catalyst and a photosensitizer in close proximity for hydrogen production from water using visible light. The composition, microstructure and dimensions-and thereby the catalytic activity-of the nanofibres were controlled through living crystallization-driven self-assembly. In this seeded growth strategy, block copolymers with crystallizable core-forming blocks and functional coronal segments were coassembled into low-dispersity, one-dimensional architectures. Under optimized conditions, the nanofibres promote the photocatalytic production of hydrogen from water with an overall quantum yield for solar energy conversion to hydrogen gas of ~4.0% (with a turnover number of >7,000 over 5 h, a frequency of >1,400 h and a H production rate of >0.327 μmol h with 1.34 μg of catalytic polymer (that is, >244,300 μmol h g of catalytic polymer)).
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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Vir: Osebne bibliografije
in: SICRIS
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