Partial-surface-passivation strategy for transition-metal-based copper-gold nanocage.
An effective strategy involving the corrosion of partial-surface-passivated Cu nanoparticles is proposed for synthesizing transition-metal-based Cu-Au alloy nanocages. Time-dependent X-ray absorption spectroscopy demonstrates that the hollow-cage Cu-Au alloy nanostructure is formed by sequential erosion of the partial surface and interior Cu and by the alloying of Au and Cu.
National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, 230029, P. R. China. yaot@ustc.edu.cn sqwei@ustc.edu.cn and College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P. R. China.
Shoujie
S
Liu
National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, 230029, P. R. China. yaot@ustc.edu.cn sqwei@ustc.edu.cn.
Xusheng
X
Zheng
National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, 230029, P. R. China. yaot@ustc.edu.cn sqwei@ustc.edu.cn.
Li
L
Song
National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, 230029, P. R. China. yaot@ustc.edu.cn sqwei@ustc.edu.cn.
Wei
W
Liu
National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, 230029, P. R. China. yaot@ustc.edu.cn sqwei@ustc.edu.cn.
Tao
T
Yao
National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, 230029, P. R. China. yaot@ustc.edu.cn sqwei@ustc.edu.cn.
Zhihu
Z
Sun
Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230026, P. R. China.
Yue
Y
Lin
National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, 230029, P. R. China. yaot@ustc.edu.cn sqwei@ustc.edu.cn.
Shiqiang
S
Wei