title: Photocatalytic hydrogen production using polymeric carbon nitride with a hydrogenase and a bioinspired synthetic Ni catalyst.
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 (CN(x)), 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).
authors.affiliation: 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/
authors.forename: Christine A
authors.initials: CA
authors.lastname: Caputo
authors.forename: Manuela A
authors.initials: MA
authors.lastname: Gross
authors.forename: Vincent W
authors.initials: VW
authors.lastname: Lau
authors.forename: Christine
authors.initials: C
authors.lastname: Cavazza
authors.forename: Bettina V
authors.initials: BV
authors.lastname: Lotsch
authors.forename: Erwin
authors.initials: E
authors.lastname: Reisner
mesh_terms: D002384:Catalysis; D006859:Hydrogen / Q000737:chemistry*; D009532:Nickel / Q000737:chemistry*; D009570:Nitriles / Q000737:chemistry*; D010777:Photochemistry
chemical_list: D009570:Nitriles; C011206:cyanogen; D009532:Nickel; D006859:Hydrogen
keywords: carbon nitride; enzyme catalysis; hydrogen production; hydrogenases; photocatalysis