Au@Pd core-shell nanobricks with concave structures and their catalysis of ethanol oxidation.
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.
MOE 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).
Wenjin
W
Wang
Jie
J
Zhang
Shengchun
S
Yang
Bingjun
B
Ding
Xiaoping
X
Song
D002384:Catalysis; D000431:Ethanol / Q000737:chemistry*; D006046:Gold / Q000737:chemistry*; D049329:Nanostructures / Q000737:chemistry*; D010084:Oxidation-Reduction; D010165:Palladium / Q000737:chemistry*
D000431:Ethanol; D010165:Palladium; D006046:Gold
core-shell nanobricks; ethanol oxidation; fuel cells; nanostructures; one-pot synthesis