期刊
CHEMISTRY-A EUROPEAN JOURNAL
卷 21, 期 50, 页码 18062-18067出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.201503777
关键词
electrocatalysis; hydrogen evolution reaction; nanostructures; phosphides; water splitting
资金
- National Research Foundation (NRF), Prime Minister's Office, Singapore under Campus for Research Excellence and Technological Enterprise (CREATE) program
- Academic Research Fund (AcRF) of the Ministry of Education, Singapore [M4011253 RG7/14, M4020246 ARC10/15]
The design of cheap and efficient water splitting systems for sustainable hydrogen production has attracted increasing attention. A flexible electrode, based on carbon cloth substrate and iron phosphide nanotubes coated with an iron oxide/phosphate layer, is shown to catalyze overall water splitting. The as-prepared flexible electrode demonstrates remarkable electrocatalytic activity for both the hydrogen evolution reaction (HER) and the oxygen evolution reaction (OER) at modest overpotentials. The surface iron oxide/phosphate, which is formed in situ, is proposed to improve the HER activity by facilitating the water-dissociation step and serves directly as the catalytically-active component for the OER process.
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