|
|||||
|
|
An Anthracene-Based Metal-Organic Framework for Selective Photo-Reduction of Carbon Dioxide to Formic Acid Coupled with Water Oxidation |
|
| Authors: | Dr Mostakim SK Dr Soumitra Barman Shounik Paul Ratnadip De Dr S S Sreejith Dr Helge Reinsch Dr Maciej Grzywa Dr Norbert Stock Prof?Dr Dirk Volkmer Dr Shyam Biswas Prof?Dr Soumyajit Roy |
| Institution: | 1. Department of Chemistry, Indian Institute of Technology, Guwahati, Assam, 781039 India
These authors contributed equally to this work.;2. Eco-Friendly Applied Materials Laboratory, Department of Chemical Sciences, New Campus, IISER-Kolkata, Mohanpur, West Bengal, 741246 India These authors contributed equally to this work.;3. Eco-Friendly Applied Materials Laboratory, Department of Chemical Sciences, New Campus, IISER-Kolkata, Mohanpur, West Bengal, 741246 India;4. Institut für Anorganische Chemie, Christian-Albrechts-Universität, Max-Eyth-Strasse 2, 24118 Kiel, Germany;5. Institute of Physics, Chair of Solid State Science, Augsburg University, Universitätsstrasse 1, 86135 Augsburg, Germany;6. Department of Chemistry, Indian Institute of Technology, Guwahati, Assam, 781039 India |
| Abstract: | A Zr-based metal-organic framework has been synthesized and employed as a catalyst for photochemical carbon dioxide reduction coupled with water oxidation. The catalyst shows significant carbon dioxide reduction property with concomitant water oxidation. The catalyst has broad visible light as well as UV light absorption property, which is further confirmed from electronic absorption spectroscopy. Formic acid was the only reduced product from carbon dioxide with a turn-over frequency (TOF) of 0.69 h?1 in addition to oxygen, which was produced with a TOF of 0.54 h?1. No external photosensitizer is used and the ligand itself acts as the light harvester. The efficient and selective photochemical carbon dioxide reduction to formic acid with concomitant water oxidation using Zr-based MOF as catalyst is thus demonstrated here. |
| Keywords: | catalysis CO2 reduction formic acid metal-organic framework photochemistry |