Photocatalytic Hydrogen Production using Polymeric Carbon Nitride with a Hydrogenase and a Bioinspired Synthetic Ni Catalyst1. (9th September 2014)

• Record Type: Journal Article
• Authors: Caputo, Christine A.; Gross, Manuela A.; Lau, Vincent W.; Cavazza, Christine; Lotsch, Bettina V.; Reisner, Erwin
• Is Part Of: Angewandte Chemie. Volume 126:Number 43(2014)
• Page Start: 11722
• Page End: 11726
• Publication Date: 2014-09-09
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1002/ange.201406811
• Languages: English
• ISSNs: 0044-8249

Abstract

<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <p>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&gt;420 nm).</p> </abstract>