Journal
ELECTROCHEMISTRY COMMUNICATIONS
Volume 11, Issue 10, Pages 1896-1899Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.elecom.2009.08.011
Keywords
Nanoporous palladium; Dealloying; Electro-oxidation; Fuel cells
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Funding
- National Natural Science Foundation of China [50701028, 50831003]
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Nanoporous palladium (NPPd) with ultrafine ligament size of 3-6 nm was fabricated by dealloying of an Al-Pd alloy in an alkaline solution. Electrochemical measurements indicate that NPPd exhibits significantly high electrochemical active specific surface area (23 m(2) g(-1)), and high catalytic activity for electro-oxidation of methanol, ethanol, and formic acid. Mass activities can reach 149, 148, 262 mA mg(-1) for the oxidation of methanol, ethanol and formic acid, respectively. Moreover, superior steady-state activities can be observed for all the electro-oxidation processes. NPPd will be a promising candidate for the anode catalyst for direct alcohol or formic acid fuel cells. (C) 2009 Elsevier B.V. All rights reserved.
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