期刊
ELECTROCHIMICA ACTA
卷 76, 期 -, 页码 468-474出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2012.05.063
关键词
Deep eutectic solvents; Pt nanoflowers; Electrodeposition; Shape-controlled synthesis; Ethanol electrooxidation
资金
- National Natural Science Foundation of China [20833005, 21021002]
- Opening Foundation Project of the State Key Laboratory of Physical Chemistry of Solid Surfaces (Xiamen University)
- Guangxi Natural Science Foundation of China [0991093, 2010GXNSFF013001]
- S&T Project of Guangxi Education Department of China [201012MS024]
The electrochemically shape-controlled synthesis in deep eutectic solvents (DESs) has been applied to produce the electrocatalyst of Pt nanoflowers. The uniform Pt nanoflowers with sharp single crystal petals and high density of atomic steps were characterized by SEM, TEM, XRD, XPS and electrochemical tests. The results illustrated that the as-prepared Pt nanoflowers exhibit higher electrocatalytic activity and stability than commercial Pt black catalyst toward ethanol electrooxidation. The growth of Pt nanoflowers in DESs by the simple electrochemical route is straightforward and controllable in terms of nanoflowers' shape and size, which can be applied in shape-controlled synthesis of other noble metal nanoparticles with high catalytic activity. (C) 2012 Elsevier Ltd. All rights reserved.
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