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

Reiner Sebastian Sprick, Baltasar Bonillo, Rob Clowes, Pierre Guiglion, Nick J. Brownbill, Benjamin J. Slater, Frédéric Blanc, Martijn A. Zwijnenburg, Dave J. Adams, Andrew I. Cooper

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206 Citations (Scopus)

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 420nm, as compared to 0.1 % for platinized commercial pristine carbon nitride.

Original languageEnglish
Pages (from-to)1792-1796
Number of pages5
JournalAngewandte Chemie - International Edition
Volume55
Issue number5
Early online date22 Dec 2015
DOIs
Publication statusPublished - 26 Jan 2016

Keywords

  • conjugated polymer
  • extended conjugation
  • photocatalysis
  • planarization
  • water splitting

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    Sprick, R. S., Bonillo, B., Clowes, R., Guiglion, P., Brownbill, N. J., Slater, B. J., Blanc, F., Zwijnenburg, M. A., Adams, D. J., & Cooper, A. I. (2016). Visible-light-driven hydrogen evolution using planarized conjugated polymer photocatalysts. Angewandte Chemie - International Edition, 55(5), 1792-1796. https://doi.org/10.1002/anie.201510542