Sprick, RS;
Jiang, JX;
Bonillo, B;
Ren, S;
Ratvijitvech, T;
Guiglion, P;
Zwijnenburg, MA;
... Cooper, AI; + view all
(2015)
Tunable organic photocatalysts for visible-light-driven hydrogen evolution.
J Am Chem Soc
, 137
(9)
3265 - 3270.
10.1021/ja511552k.
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Abstract
Photocatalytic hydrogen production from water offers an abundant, clean fuel source, but it is challenging to produce photocatalysts that use the solar spectrum effectively. Many hydrogen-evolving photocatalysts are active in the ultraviolet range, but ultraviolet light accounts for only 3% of the energy available in the solar spectrum at ground level. Solid-state crystalline photocatalysts have light absorption profiles that are a discrete function of their crystalline phase and that are not always tunable. Here, we prepare a series of amorphous, microporous organic polymers with exquisite synthetic control over the optical gap in the range 1.94-2.95 eV. Specific monomer compositions give polymers that are robust and effective photocatalysts for the evolution of hydrogen from water in the presence of a sacrificial electron donor, without the apparent need for an added metal cocatalyst. Remarkably, unlike other organic systems, the best performing polymer is only photoactive under visible rather than ultraviolet irradiation.
| Type: | Article |
|---|---|
| Title: | Tunable organic photocatalysts for visible-light-driven hydrogen evolution |
| Location: | United States |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1021/ja511552k |
| Publisher version: | http://dx.doi.org/10.1021/ja511552k |
| Language: | English |
| Additional information: | Copyright © 2015 American Chemical Society. This is an open access article published under a Creative Commons Attribution (CC-BY) License, which permits unrestricted use, distribution and reproduction in any medium, provided the author and source are cited. |
| 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/1467703 |
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