High symmetric 18-facet polyhedron nanocrystals of Cu7S4 with a hollow nanocage
High symmetric 18-facet polyhedron nanocrystals of Cu7S4 with a hollow nanocage
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DOI：
10.1021/ja055265y
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发表时间：
2005-11-23
影响因子：
15
通讯作者：
Zhu, ZK
中科院分区：
文献类型：
--
作者：
Cao, HL;Qian, XF;Zhu, ZK
基于Kirkendall效应，在水溶液中由Cu 2 O立方纳米晶转化为具有中空纳米笼的高对称性18面多面体Cu 7S 4纳米晶。有机添加剂的存在使{110}的表面能小于{100}和{111}的表面能。纳米晶沿着最高能量面{100}的法线方向生长，形成18面多面体。
On the basis of Kirkendall Effect, high symmetric 18-facet polyhedral nanocrystals of Cu7S4with a hollow nanocage could be converted from cubic nanocrystals of Cu2O in an aqueous media. The presence of organic additives makes the surface energy of {110} smaller than those of {100} and {111}. The growth of nanocrystals along the normal direction of highest energy surface {100} leads to the formation of a 18-facet polyhedron.