Cu-Au alloy nanotubes with five-fold twinned structure and their application in surface-enhanced Raman scattering
Cu-Au alloy nanotubes with five-fold twinned structure and their application in surface-enhanced Raman scattering
复制标题
五重孪晶结构铜金合金纳米管及其在表面增强拉曼散射中的应用
DOI：
10.1039/c2jm33863g
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发表时间：
2012-01-01
影响因子：
--
通讯作者：
Zheng, Lansun
中科院分区：
文献类型：
--
作者：
Jiang, Zhiyuan;Zhang, Qingfeng;Zheng, Lansun
由于铜-金合金纳米结构在催化、光子学和表面增强拉曼散射(SERS)检测等方面的广泛应用，近年来受到了人们的广泛关注。在油胺有机相中，以铜纳米线为模板，AuPPh3Cl为Au前体，采用模板法合成了具有五重孪晶结构的铜-金纳米管。证实了高质量的铜-金合金纳米管的形成是铜-金合金效应、Kirkendall效应和电偶置换反应的结果。研究还表明，铜-金合金纳米管具有良好的稳定性和便于建立热点，在表面增强拉曼散射检测中具有潜在的应用前景。
Cu-Au alloy nanostructures have received considerable attention in recent years due to their widespread use in applications such as catalysis, photonics and surface-enhanced Raman scattering (SERS) detection. In this article, a template-based strategy has been developed to synthesize Cu-Au nanotubes with five-fold twinned structure by using Cu nanowires as templates and AuPPh3Cl as Au precursors in the organic phase of oleylamine. It was verified that high quality Cu- Au alloy nanotubes could result from the Cu-Au alloy effect, the Kirkendall effect, and the galvanic replacement reaction. It was also demonstrated that the Cu-Au alloy nanotubes may have potential applications in SERS detection because of their good stability and convenience for building "hot spots".