Journal
ENERGY & ENVIRONMENTAL SCIENCE
Volume 7, Issue 1, Pages 329-334Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c3ee42194e
Keywords
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Funding
- Natural Science Foundation of China [21373040, 21120102036, 91233201]
- Basic Research Program of China [2009CB220009]
- Swedish Research Council
- K & A Wallenberg Foundation
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Self-assembled molecular iron and cobalt catalysts (MP4N2, M = Fe, Co) bearing a multihydroxy-functionalized tetraphosphine ligand electrocatalyze H-2 generation from neutral water on a mercury electrode at -1.03 and -0.50 V vs. NHE, respectively. Complex CoP4N2 displays extremely low overpotential (E-onset = 80 mV) while maintaining high activity and good stability. Bulk electrolysis of CoP4N2 in a neutral phosphate buffer solution at -1.0 V vs. NHE produced 9.24 x 10(4) mol H-2 per mol cat. over 20 h, with a Faradaic efficiency close to 100% and without apparent deactivation.
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