Structurally diverse covalent triazine-based framework materials for photocatalytic hydrogen evolution from water

Christian B. Meier, Rob Clowes, Enrico Berardo, Kim E. Jelfs, Martijn A. Zwijnenburg, Reiner Sebastian Sprick, Andrew I. Cooper

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

A structurally diverse family of 39 covalent triazine-based framework materials (CTFs) are synthesized by Suzuki-Miyaura polycondensation and tested as hydrogen evolution photocatalysts using a high-throughput workflow. The two best-performing CTFs are based on benzonitrile and dibenzo[b,d]thiophene sulfone linkers, respectively, with catalytic activities that are among the highest for this material class. The activities of the different CTFs are rationalized in terms of four variables: the predicted electron affinity, the predicted ionization potential, the optical gap, and the dispersibility of the CTFs particles in solution, as measured by optical transmittance. The electron affinity and dispersibility in solution are found to be the best predictors of photocatalytic hydrogen evolution activity.

Original languageEnglish
Pages (from-to)8830–8838
Number of pages9
JournalChemistry of Materials
Volume31
Issue number21
Early online date27 Sep 2019
DOIs
Publication statusPublished - 12 Nov 2019

Keywords

  • covalent triazine-based framework (CTF)
  • photocatalysis
  • crude oil purification

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