Selective Synthesis of Gold Cuboid and Decahedral Nanoparticles Regulated and Controlled by Cu2+ Ions

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• 作者：Jianhua Sun ; Mingyun Guan ; Tongming Shang ; Cuiling Gao ; Zheng Xu ; Jianmin Zhu
• 刊名：Crystal Growth & Design
• 出版年：2008
• 出版时间：March 2008
• 年：2008
• 卷：8
• 期：3
• 页码：906 - 910
• 全文大小：1419K
• 年卷期：v.8,no.3(March 2008)
• ISSN：1528-7505

文摘

It is found that Cu²⁺ is an effective agent for the controlled preparation of shaped gold nanoparticles. As the concentration of Cu²⁺ increases from 0 mM to 0.2 mM to 1.6 mM, the shape of the gold nanoparticles changes from rod to cuboid to decahedron. A possible mechanism based on selectively retarding the growth rate of the {111} plane is proposed.