Herein, we report the successful application of hybrid Au-Ag nanoparticles (NPs) and nanochains (NCs) in the harvesting of visible light energy for selective hydrogenation reactions. For individual Au@Ag NPs with Au25 cores, the conversion and turnover frequency (TOF) are approximately 8 and 10 times higher than those of Au25 NPs, respectively. Notably, after the self-assembly of the Au@Ag NPs, the conversion and TOF of 1D NCs were approximately 2.5 and 2 times higher than those of isolated Au@Ag NPs, respectively, owing to the coupling of surface plasmon and the increase in the rate at which hot (energetic) electrons are generated with the formation of plasmonic hot spots between NPs. Furthermore, the surface-enhanced Raman scattering (SERS) activity of 1D Au@Ag NCs was strengthened by nearly 2 orders of magnitude.

中文翻译：

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通过可见光照射和表面增强拉曼散射增强等离子体驱动选择性氢化的混合金银纳米结构

在此，我们报告了混合 Au-Ag 纳米粒子 (NPs) 和纳米链 (NCs) 在收集可见光能量以进行选择性氢化反应中的成功应用。对于具有 Au25 核的单个 Au@Ag NP，转换频率和周转频率 (TOF) 分别比 Au25 NP 高约 8 倍和 10 倍。值得注意的是，在 Au@Ag NPs 自组装后，由于表面等离子体的耦合和表面等离子体的增加，1D NCs 的转化率和 TOF 分别比孤立的 Au@Ag NPs 高约 2.5 倍和 2 倍。随着 NPs 之间等离子体热点的形成，产生热（高能）电子的速率。此外，一维 Au@Ag NCs 的表面增强拉曼散射（SERS）活性增强了近 2 个数量级。