Abstract
Four solution-processable, linear conjugated polymers of intrinsic porosity are synthesised and tested for gas phase carbon dioxide photoreduction. The polymers’ photoreduction efficiency is investigated as a function of their porosity, optical properties, energy levels and photoluminescence. All polymers successfully form carbon monoxide as the main product, without the addition of metal co-catalysts. The best performing single component polymer yields a rate of 66 μmol h−1 m−2, which we attribute to the polymer exhibiting macroporosity and the longest exciton lifetimes. The addition of copper iodide, as a source of a copper co-catalyst in the polymers shows an increase in rate, with the best performing polymer achieving a rate of 175 μmol h−1 m−2. The polymers are active for over 100 h under operating conditions. This work shows the potential of processable polymers of intrinsic porosity for use in the gas phase photoreduction of carbon dioxide towards solar fuels.
Original language | English (US) |
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Journal | Nature Communications |
Volume | 14 |
Issue number | 1 |
DOIs | |
State | Published - Jun 10 2023 |
Bibliographical note
KAUST Repository Item: Exported on 2023-06-14Acknowledged KAUST grant number(s): CRG10
Acknowledgements: The authors would like to acknowledge financial support from KAUST Office of Sponsored Research CRG10, by EU Horizon 2020 grant agreement no. 952911, BOOSTER, grant agreement no. 862474, RoLA-FLEX, and grant agreement no. 101007084 CITYSOLAR, as well as EPSRC Projects EP/T026219/1, EP/W017091/1 and EP/S030727/1. The authors would like to acknowledge the Henry Royce Institute (through UK Engineering and Physical Science Research Council grant EP/R010145/1) for capital equipment.
ASJC Scopus subject areas
- General Biochemistry, Genetics and Molecular Biology
- General Chemistry
- General Physics and Astronomy