Hits:

Indexed by:期刊论文

Date of Publication:2014-01-01

Journal:ENERGY & ENVIRONMENTAL SCIENCE

Included Journals:SCIE、EI、Scopus

Volume:7

Issue:1

Page Number:329-334

ISSN No.:1754-5692

Abstract: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.