期刊
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
卷 37, 期 3, 页码 2579-2587出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2011.11.016
关键词
Direct ethanol fuel cells; Electro-oxidation; Nanoporous metals; Ball-milling; Dealloying
资金
- National Natural Science Foundation of China [50971079]
- Shandong University [2010JQ015]
- Alexander von Humboldt Foundation (Germany)
- Taiyuan University
A novel Raney-like nanoporous Pd catalyst has been fabricated through the combination of ball-milling with alkali-dealloying strategy. The microstructure of this catalyst has been characterized using X-ray diffraction, scanning electron microscopy and transmission electron microscopy. The results show that the as-fabricated Raney Pd powders are several microns in size, and each particle exhibits an open, bicontinuous interpenetrating ligament-channel structure with a length scale of 3-7 nm. Electrochemical measurements demonstrate that this Raney Pd catalyst has a high electrochemical active surface area and shows remarkable electrocatalytic activity and stability towards ethanol oxidation. Due to the advantages of simple preparation and superior performance, this Raney Pd catalyst can find promising application as a candidate for the anode catalyst of direct ethanol fuel cells. Copyright (C) 2011, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
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