Surface-enhanced Raman scattering (SERS) has been used in various research fields because of high sensitivity and rapid data acquisition. When combined with catalysis in a bifunctional nanostructure, it is possible to monitor molecular transformations by providing information allowing a view of the reaction mechanism and kinetics. However, it is quite challenging to combine catalytic and SERS activities on the same material. This work aimed to produce bifunctional trimetallic nanotubes with catalytic and spectroscopic properties for catalysis and SERS monitoring of the cinnamyl alcohol oxidation reaction. The nanotubes synthesized were characterized by UV–vis, SEM, TEM, XPS, and ICP-OES. The XPS spectral analysis showed the formation of metal alloys containing Ag, Au, and Pd on the nanotubes' surface. The catalytic and spectroscopic results suggest a strong dependence on the ratio between the metals used in the nanocatalyst production for better catalytic performance and greater intensification of the Raman signal. With the SERS spectra and the results obtained by Gas chromatography, it was possible to suggest the reaction mechanism. Moreover, the stability of the catalyst was satisfactory, with 3 runs without loss of activity.

由于高灵敏度和快速数据采集，表面增强拉曼散射 (SERS) 已被用于各种研究领域。当与双功能纳米结构中的催化结合时，可以通过提供允许查看反应机制和动力学的信息来监测分子转化。然而，将催化和 SERS 活性结合在同一材料上是非常具有挑战性的。这项工作旨在生产具有催化和光谱特性的双功能三金属纳米管，用于肉桂醇氧化反应的催化和 SERS 监测。合成的纳米管通过 UV-vis、SEM、TEM、XPS 和 ICP-OES 进行表征。XPS 光谱分析表明在纳米管表面形成了包含 Ag、Au 和 Pd 的金属合金。催化和光谱结果表明，纳米催化剂生产中使用的金属之间的比例有很强的依赖性，以获得更好的催化性能和更大的拉曼信号增强。根据 SERS 光谱和气相色谱法获得的结果，可以推测反应机理。此外，催化剂的稳定性令人满意，运行 3 次没有活性损失。