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ChemSusChem. 2013 Oct;6(10):1945-51. doi: 10.1002/cssc.201300454. Epub 2013 Aug 8.

Au@Pd core-shell nanobricks with concave structures and their catalysis of ethanol oxidation.

Author information

  • 1MOE Key Laboratory for Non-equilibrium Synthesis and Modulation of Condensed Matter, State Key Laboratory for Mechanical Behavior of Materials, School of Science, Xi'an Jiaotong University, Shann Xi, 710049 (PR China).

Abstract

Au@Pd core-shell nanobricks (CNBs) with concave surfaces and Pd shells with a thickness of approximately 5 nm were synthesized by co-reduction of HAuCl4 and H2 PdCl4 in the presence of Au seeds and Ag ions. These as-synthesized concave CNBs exhibit significantly enhanced catalytic activity for the electrooxidation of ethanol in alkaline media compared to the commercially-used Pd black. The improved performance of the Au@Pd CNBs can be attributed to the exposed stepped surfaces, high-index facets, and the synergistic effects of the core and shell metals.

Copyright © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

KEYWORDS:

core-shell nanobricks; ethanol oxidation; fuel cells; nanostructures; one-pot synthesis

PMID:
23929810
[PubMed - indexed for MEDLINE]
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