Molecular Porous Photosystems Tailored for Long-Term Photocatalytic CO 2 Reduction

The molecular-level structuration of two full photosystems into conjugated porous organic polymers is reported. The strategy of heterogenization gives rise to photosystems which are still fully active after 4 days of continuous illumination. Those materials catalyze the carbon dioxide photoreduction...

Full description

Saved in:
Bibliographic Details
Published in:Angewandte Chemie International Edition 2020-03, Vol.59 (13), p.5116-5122
Main Authors: Wisser, Florian M, Duguet, Mathis, Perrinet, Quentin, Ghosh, Ashta C, Alves-Favaro, Marcelo, Mohr, Yorck, Lorentz, Chantal, Quadrelli, Elsje Alessandra, Palkovits, Regina, Farrusseng, David, Mellot-Draznieks, Caroline, de Waele, Vincent, Canivet, Jérôme
Format: Article
Language:English
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The molecular-level structuration of two full photosystems into conjugated porous organic polymers is reported. The strategy of heterogenization gives rise to photosystems which are still fully active after 4 days of continuous illumination. Those materials catalyze the carbon dioxide photoreduction driven by visible light to produce up to three grams of formate per gram of catalyst. The covalent tethering of the two active sites into a single framework is shown to play a key role in the visible light activation of the catalyst. The unprecedented long-term efficiency arises from an optimal photoinduced electron transfer from the light harvesting moiety to the catalytic site as anticipated by quantum mechanical calculations and evidenced by in situ ultrafast time-resolved spectroscopy.
ISSN:1433-7851
1521-3773
DOI:10.1002/anie.201912883