Photocatalytic Hydrogen Production using Polymeric Carbon Nitride with a Hydrogenase and a Bioinspired Synthetic Ni Catalyst |
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| Authors: | Dr. Christine A. Caputo Manuela A. Gross Dr. Vincent W. Lau Dr. Christine Cavazza Prof. Bettina V. Lotsch Dr. Erwin Reisner |
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| Affiliation: | 1. Christian Doppler Laboratory for Sustainable SynGas Chemistry, Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW (UK) http://www‐reisner.ch.cam.ac.uk/;2. Max Planck Institute for Solid State Research, Heisenbergstrasse 1, 70569 Stuttgart (Germany);3. Department of Chemistry, Ludwig‐Maximilians‐Universit?t München, Butenandtstrasse 5–13 (Haus D), 81377 München (Germany);4. CEA, CNRS, Université Grenoble Alpes, IBS, 71 Avenue des Martyrs, 38044 Grenoble (France) |
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| Abstract: | Solar‐light‐driven H2 production in water with a [NiFeSe]‐hydrogenase (H2ase) and a bioinspired synthetic nickel catalyst (NiP) in combination with a heptazine carbon nitride polymer, melon (CNx), is reported. The semibiological and purely synthetic systems show catalytic activity during solar light irradiation with turnover numbers (TONs) of more than 50 000 mol H2 (mol H2ase)?1 and approximately 155 mol H2 (mol NiP)?1 in redox‐mediator‐free aqueous solution at pH 6 and 4.5, respectively. Both systems maintained a reduced photoactivity under UV‐free solar light irradiation (λ>420 nm). |
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| Keywords: | carbon nitride enzyme catalysis hydrogen production hydrogenases photocatalysis |
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