Thursday, May 30, 2013

Production of H2 at Fast Rates Using a Nickel Electrocatalyst in Water/Acetonitrile Solutions

Production of H2 at Fast Rates Using a Nickel Electrocatalyst in Water/Acetonitrile Solutions:
Chem. Commun., 2013, Accepted Manuscript
DOI: 10.1039/C3CC43203C, Communication
Wesley A Hoffert, John A. S. Roberts, R Morris Bullock, Monte L Helm
We report a synthetic nickel complex containing proton relays, [Ni(PPh2NC6H4OH2)2](BF4)2 (PPh2NC6H4OH2 = 1,5-bis(p-hydroxyphenyl)-3,7-diphenyl-1,5-diaza-3,7-diphosphacyclo-octane), that catalyzes the production of H2 in aqueous acetonitrile with turnover frequencies of 750-170,000 s-1 at directly...
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Tuesday, May 21, 2013

Catalytic Hydrogen Oxidation: Dawn of a New Iron Age

Catalytic Hydrogen Oxidation: Dawn of a New Iron Age: Thumbnail image of graphical abstract
One metal or two? Recent results in the design of hydrogenase mimics have resulted in NiFe- and Fe-based complexes (see picture) that split molecular H2 into electrons and protons. Although these compounds are still far from technological application they improve our understanding of how nature exploits abundant metals to achieve complex reactions.