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With octahedral Au nanocrystals as seeds, highly monodisperse Au@Pd and Au@Ag core−shell nanocubes were synthesized by a two-step seed-mediated method in aqueous solution. Accordingly, we have preliminarily proposed a general rule that the atomic radius, bond dissociation energy, and electronegativity of the core and shell metals play key roles in determining the conformal epitaxial layered growth mode.

http://pubs.acs.org/cgi-bin/abst ... /abs/ja801566d.html



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