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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 (?>420?nm).

SUBMITTER: Caputo CA 

PROVIDER: S-EPMC4497605 | biostudies-literature | 2014 Oct

REPOSITORIES: biostudies-literature

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Photocatalytic hydrogen production using polymeric carbon nitride with a hydrogenase and a bioinspired synthetic Ni catalyst.

Caputo Christine A CA   Gross Manuela A MA   Lau Vincent W VW   Cavazza Christine C   Lotsch Bettina V BV   Reisner Erwin E  

Angewandte Chemie (International ed. in English) 20140909 43


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.  ...[more]

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