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Chun-Hong Kuo, Yi-Ting Chu, Yen-Fang Song and Michael H. Huang Cu2O Nanocrystal-Templated Growth of Cu2S Nanocages with Encapsulated Au Nanoparticles and In-Situ Transmission X-ray Microscopy Study Advanced Functional Materials 21

Version of Record online: 17 JAN 2011 | DOI: 10.1002/adfm.201002108

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Cubic and octahedral Cu2O nanocrystals and Au–Cu2O core–shell heterostructures are used as sacrificial templates for the growth of Cu2S nanocages and Au–Cu2S core–cage structures with excellent preservation of the template morphologies. The entire hollowing process via the Kirkendall effect is recorded using in-situ transmission X-ray microscopy. Intermediate structures with remaining central Cu2O portions and bridging arms to the surrounding cages are observed.

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