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Au@Pd Core–Shell Nanobricks with Concave Structures and Their Catalysis of Ethanol Oxidation
Author(s) -
Wang Wenjin,
Zhang Jie,
Yang Shengchun,
Ding Bingjun,
Song Xiaoping
Publication year - 2013
Publication title -
chemsuschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.412
H-Index - 157
eISSN - 1864-564X
pISSN - 1864-5631
DOI - 10.1002/cssc.201300454
Subject(s) - catalysis , shell (structure) , chemistry , ethanol , palladium , chemical engineering , reducing agent , core (optical fiber) , inorganic chemistry , nuclear chemistry , materials science , organic chemistry , composite material , engineering
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 HAuCl 4 and H 2 PdCl 4 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.