Continuous Heterogeneous Photocatalysis in Serial Micro‐Batch Reactors |
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Authors: | Dr. Bartholomäus Pieber Dr. Menny Shalom Prof. Dr. Markus Antonietti Prof. Dr. Peter H. Seeberger Dr. Kerry Gilmore |
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Affiliation: | 1. Department of Biomolecular Systems, Max Planck Institute of Colloids and Interfaces, Potsdam, Germany;2. Department of Colloid Chemistry, Max Planck Institute of Colloids and Interfaces, Potsdam, Germany;3. Current address: Chemistry Department, Ben Gurion University of the Negev, Beersheba, Israel |
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Abstract: | Solid reagents, leaching catalysts, and heterogeneous photocatalysts are commonly employed in batch processes but are ill‐suited for continuous‐flow chemistry. Heterogeneous catalysts for thermal reactions are typically used in packed‐bed reactors, which cannot be penetrated by light and thus are not suitable for photocatalytic reactions involving solids. We demonstrate that serial micro‐batch reactors (SMBRs) allow for the continuous utilization of solid materials together with liquids and gases in flow. This technology was utilized to develop selective and efficient fluorination reactions using a modified graphitic carbon nitride heterogeneous catalyst instead of costly homogeneous metal polypyridyl complexes. The merger of this inexpensive, recyclable catalyst and the SMBR approach enables sustainable and scalable photocatalysis. |
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Keywords: | carbon nitrides flow chemistry fluorination heterogeneous catalysis photocatalysis |
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