Solution-processable polymers of intrinsic microporosity for gas-phase carbon dioxide photoreduction

Floriana Moruzzi, Weimin Zhang, Balaji Purushothaman, Soranyel Gonzalez-Carrero, Catherine M. Aitchison, Benjamin Willner, Fabien Ceugniet, Yuanbao Lin, Jan Kosco, Hu Chen, Junfu Tian, Maryam Alsufyani, Joshua S. Gibson, Ed Rattner, Yasmine Baghdadi, Salvador Eslava, Marios Neophytou, James R. Durrant, Ludmilla Steier and Iain McCulloch ()
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Floriana Moruzzi: Oxford University, Chemistry Research Laboratory
Weimin Zhang: King Abdullah University of Science and Technology (KAUST)
Balaji Purushothaman: King Abdullah University of Science and Technology (KAUST)
Soranyel Gonzalez-Carrero: Imperial College London
Catherine M. Aitchison: Oxford University, Chemistry Research Laboratory
Benjamin Willner: Oxford University, Chemistry Research Laboratory
Fabien Ceugniet: Oxford University, Chemistry Research Laboratory
Yuanbao Lin: Oxford University, Chemistry Research Laboratory
Jan Kosco: King Abdullah University of Science and Technology (KAUST)
Hu Chen: Great Bay University
Junfu Tian: Oxford University, Chemistry Research Laboratory
Maryam Alsufyani: Oxford University, Chemistry Research Laboratory
Joshua S. Gibson: University of Oxford
Ed Rattner: Imperial College London
Yasmine Baghdadi: Imperial College London
Salvador Eslava: Imperial College London
Marios Neophytou: King Abdullah University of Science and Technology (KAUST)
James R. Durrant: Imperial College London
Ludmilla Steier: Oxford University, Chemistry Research Laboratory
Iain McCulloch: Oxford University, Chemistry Research Laboratory

Nature Communications, 2023, vol. 14, issue 1, 1-11

Abstract: 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.

Date: 2023
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DOI: 10.1038/s41467-023-39161-6

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