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Visible-light-driven hydrogen evolution using planarized conjugated polymer photocatalysts

Sprick, RS; Bonillo, B; Clowes, R; Guiglion, P; Brownbill, NJ; Slater, BJ; Blanc, F; ... Cooper, AI; + view all (2016) Visible-light-driven hydrogen evolution using planarized conjugated polymer photocatalysts. Angewandte Chemie International Edition , 55 (5) pp. 1792-1796. 10.1002/anie.201510542. Green open access

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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, dibenzo[b,d]thiophene or dibenzo[b,d]thiophene sulfone units greatly enhances the H2 evolution rate. The most active dibenzo[b,d]thiophene sulfone co-polymer has a UV photocatalytic activity that rivals TiO2 , but is much more active under visible light. The dibenzo[b,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.

Type: Article
Title: Visible-light-driven hydrogen evolution using planarized conjugated polymer photocatalysts
Location: Germany
Open access status: An open access version is available from UCL Discovery
DOI: 10.1002/anie.201510542
Publisher version: http://dx.doi.org/10.1002/anie.201510542
Language: English
Additional information: With correction first published on 27 February 2018. - Copyright © 2016 The Authors. This is an open access article under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
Keywords: conjugated polymer, extended conjugation, photocatalysis, planarization, water splitting
UCL classification: UCL
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Chemistry
URI: https://discovery.ucl.ac.uk/id/eprint/1476625
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