Conversion of Cu2O nanocrystals into hollow Cu2-xSe nanocages with the preservation of morphologies
Conversion of Cu2O nanocrystals into hollow Cu2-xSe nanocages with the preservation of morphologies
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DOI：
10.1039/b609848g
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发表时间：
2006-01-01
影响因子：
4.9
通讯作者：
Zhu, Zikang
中科院分区：
文献类型：
--
作者：
Cao, Hongliang;Qian, Xuefeng;Zhu, Zikang
以聚乙烯吡咯烷酮（PVP）为封端剂，采用不同还原剂，在水溶液中制备了立方、八面体和球形Cu 2 O纳米晶。在室温下加入硒源后，这些纳米晶体可以转化（基于Kirkendall效应）为中空的Cu 2-xSe纳米笼，保持其相应的原始形貌。
With the use of PVP ( polyvinylpyrrolidone) as capping reagent, cubic, octahedral and spherical Cu2O nanocrystals were obtained in aqueous media when different reducing agents were applied. After adding selenium sources at room temperature, these nanocrystals could be converted ( based on the Kirkendall effect) into hollow Cu2-xSe nanocages that keep their corresponding orignial morphologies.