双功能
催化作用
拉曼光谱
表面增强拉曼光谱
原位
基质(水族馆)
化学
偶联反应
纳米技术
钯
材料科学
光化学
化学工程
组合化学
拉曼散射
有机化学
光学
物理
海洋学
工程类
地质学
作者
Cancan Zhang,Yonglong Lü,Aonan Zhu,Ling Yang,Xiaohui Du,Yunfeng Hu,Xian Yang,Feng Zhang,Wei Xie
标识
DOI:10.1016/j.cclet.2022.06.078
摘要
Surface-enhanced Raman spectroscopy (SERS), a powerful surface vibrational spectroscopic technique, is ideally suited for in situ monitoring the chemical transformations occurred at surfaces and/or interfaces. For in situ SERS monitoring, a platform integrated both plasmonic and catalytic activity is a prerequisite. Here, we fabricate a bifunctional Au-Pd nanocoronal film for in situ SERS monitoring Suzuki-Miyaura cross-coupling reaction. This excellent bifunctional substrate leads to the coupling of high catalytic activity with a strong SERS effect at the center of two adjacent Au cores and shows fine reproducibility and stability of SERS signals. During investigating the Suzuki reaction with in situ SERS, we found two distinct catalytic kinetic processes resulted from two disparate catalytic sites on a Au-Pd nanocoronal. Comparing with conventional analytical techniques, this work provides a novel approach for studying Suzuki reactions at surfaces and/or interfaces with in situ SERS.
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