通过硝酸脱合金化形成基于基底的金纳米笼链。

The Key Lab of Health Chemistry and Molecular Diagnosis of Suzhou, College of Chemistry, Chemical Engineering and Material Science, Soochow University, Suzhou, Jiangsu 215123, PR China.

Beilstein J Nanotechnol. 2015 Jun 18;6:1362-8. doi: 10.3762/bjnano.6.140. eCollection 2015.

Metal nanocages have raised great interest because of their new properties and wide applications. Here, we report on the use of galvanic replacement reactions to synthesize substrate-supported Ag-Au nanocages from silver templates electrodeposited on transparent indium tin oxide (ITO) film coated glass. The residual Ag in the composition was dealloyed with 10% nitric acid. It was found that chains of Au nanocages were formed on the substrate surface during dealloying. When the concentration of HNO3 increased to 20%, the structures of nanocages were damaged and formed crescent or semi-circular shapes. The transfer process on the substrate surface was discussed.

金属纳米笼因其新的性质和广泛的应用而引起了极大的兴趣。在这里，我们报告了使用电置换反应，从透明氧化铟锡（ITO）薄膜涂覆的玻璃上电沉积的银模板合成基底支撑的 Ag-Au 纳米笼。组成中的残留 Ag 用 10%硝酸脱合金。研究发现，在脱合金过程中，Au 纳米笼链在基底表面形成。当 HNO3 的浓度增加到 20%时，纳米笼的结构被破坏，形成新月形或半圆形。讨论了基底表面的转移过程。