Hypercrosslinked Polymers as a Photocatalytic Platform for Visible-Light-Driven CO 2 Photoreduction Using H 2 O.

Autor: Schukraft GEM; Barrer Centre, Department of Chemical Engineering, South Kensington Campus, Imperial College London, London, SW7 2AZ, UK., Woodward RT; Barrer Centre, Department of Chemical Engineering, South Kensington Campus, Imperial College London, London, SW7 2AZ, UK.; Current address: Institute of Materials Chemistry and Research, Faculty of Chemistry, University of Vienna, Währinger Straße 42, 1090, Vienna, Austria., Kumar S; Department of Chemical Engineering, Imperial College London, London, SW7 2AZ, UK., Sachs M; Department of Chemistry, White City Campus, Imperial College London, London, W12 0BZ, UK., Eslava S; Department of Chemical Engineering, Imperial College London, London, SW7 2AZ, UK., Petit C; Barrer Centre, Department of Chemical Engineering, South Kensington Campus, Imperial College London, London, SW7 2AZ, UK.
Jazyk: angličtina
Zdroj: ChemSusChem [ChemSusChem] 2021 Apr 09; Vol. 14 (7), pp. 1720-1727. Date of Electronic Publication: 2021 Jan 22.
DOI: 10.1002/cssc.202002824
Abstrakt: The design of robust, high-performance photocatalysts is key for the success of solar fuel production by CO 2 conversion. In this study, hypercrosslinked polymer (HCP) photocatalysts have been developed for the selective reduction of CO 2 to CO, combining excellent CO 2 sorption capacities, good general stabilities, and low production costs. HCPs are active photocatalysts in the visible light range, significantly outperforming the benchmark material, TiO 2 P25, using only sacrificial H 2 O. It is hypothesized that superior H 2 O adsorption capacities facilitate access to photoactive sites, improving photocatalytic conversion rates when compared to sacrificial H 2 . These polymers are an intriguing set of organic photocatalysts, displaying no long-range order or extended π-conjugation. The as-synthesized networks are the sole photocatalytic component, requiring no added cocatalyst doping or photosensitizer, representing a highly versatile and exciting platform for solar-energy conversion.
(© 2021 The Authors. ChemSusChem published by Wiley-VCH GmbH.)
Databáze: MEDLINE
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