Visible‐Light‐Driven Hydrogen Evolution Using Planarized Conjugated Polymer Photocatalysts |
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| Authors: | Dr Reiner Sebastian Sprick Dr Baltasar Bonillo Rob Clowes Pierre Guiglion Nick J Brownbill Dr Benjamin J Slater Dr Frédéric Blanc Dr Martijn A Zwijnenburg Prof Dave J Adams Prof Andrew I Cooper |
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| Institution: | 1. Department of Chemistry and Centre for Materials Discovery, University of Liverpool, Liverpool, UK;2. Department of Chemistry, University College London, London, UK;3. Stephenson Institute for Renewable Energy, University of Liverpool, Liverpool, UK |
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| Abstract: | Linear poly(p‐phenylene)s are modestly active UV photocatalysts for hydrogen production in the presence of a sacrificial electron donor. Introduction of planarized fluorene, carbazole, dibenzob,d]thiophene or dibenzob,d]thiophene sulfone units greatly enhances the H2 evolution rate. The most active dibenzob,d]thiophene sulfone co‐polymer has a UV photocatalytic activity that rivals TiO2, but is much more active under visible light. The dibenzob,d]thiophene sulfone co‐polymer has an apparent quantum yield of 2.3 % at 420 nm, as compared to 0.1 % for platinized commercial pristine carbon nitride. |
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| Keywords: | conjugated polymer extended conjugation photocatalysis planarization water splitting |
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