期刊
ELECTROCHIMICA ACTA
卷 222, 期 -, 页码 1522-1527出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2016.11.134
关键词
Pt monolayer; Pt usage; monolayer; hydrogen evolution reaction
资金
- National University Research Fund [1110010341, GK201504007]
- Changjiang Scholar and Innovative Research Team [IRT_14R33]
- 111 Project [B14041]
- Chinese National 1000-talent-plan program
- [S2013YB04]
Using a dual buffer structure, a controlled layer-by-layer deposition process has been developed to fabricate a monolayer Pt coating on carbon fiber with complex network structures. The electrochemical quartz crystal microbalance, current density analyses, and X-ray photoelectron spectroscopy results conclude that the monolayer deposition process accomplishes full coverage on the substrate and that the thickness of the deposition layer can be controlled on a single atom scale. It is found that a dual buffer, comprising a thin Ni coating and an Au nano-film, is necessary to cover carbon fiber substrate to ensure a complete monolayer Pt coverage. Moreover, the Pt monolayer is found to work better than thicker Pt -the best norm in the field, for catalyzing hydrogen evolution reaction. (C) 2016 Elsevier Ltd. All rights reserved.
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