Scientific article
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English

Antenna Effect in Noble Metal‐Free Dye‐Sensitized Photocatalytic Systems Enhances CO2 ‐to‐CO Conversion

Published inAngewandte Chemie, vol. 63, no. 13, e202318299
Publication date2024-02-21
First online date2024-02-21
Abstract

Dye‐sensitized photocatalytic systems (DSPs) have been extensively investigated for solar‐driven hydrogen (H2 ) evolution. However, their application in carbon dioxide (CO2 ) reduction remains limited. Furthermore, current solar‐driven CO2 ‐to‐CO DSPs typically employ rhenium complexes as catalysts. In this study, we have developed DSPs that incorporate noble metal‐free components, specifically a zinc‐porphyrin as photosensitizer (PS) and a cobalt‐quaterpyridine as catalyst (CAT). Taking a significant stride forward, we have achieved an antenna effect for the first time in CO2 ‐to‐CO DSPs by introducing a Bodipy as an additional chromophore to enhance light harvesting efficiency. The energy transfer from Bodipy to zinc porphyrin resulted in remarkable stability (turn over number (TON)=759 vs. CAT), and high CO evolution activity (42 mmol g−1 h−1 vs. CAT).

Keywords
  • CO2 reduction
  • Antenna effect
  • Dye-sensitized photocatalytic systems (DSPs)
  • Porphyrin
  • Quaterpyridine
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Funding
Citation (ISO format)
NIKOLAOU, Vasilis et al. Antenna Effect in Noble Metal‐Free Dye‐Sensitized Photocatalytic Systems Enhances CO2 ‐to‐CO Conversion. In: Angewandte Chemie, 2024, vol. 63, n° 13, p. e202318299. doi: 10.1002/anie.202318299
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Journal ISSN1433-7851
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