In situ monitoring of Suzuki-Miyaura cross-coupling reaction by using surface-enhanced Raman spectroscopy on a bifunctional Au-Pd nanocoronal film  

作　　者：Cancan Zhang Yonglong Li Aonan Zhu Ling Yang Xiaomeng Du Yanfang Hu Xian Yang Feng Zhang Wei Xie 

机构地区：[1]Key Laboratory of Advanced Energy Materials Chemistry(Ministry of Education),Tianjin Key Lab of Molecular Recognition&Biosensing,Haihe Laboratory of Sustainable Chemical Transformations,Renewable Energy Conversion and Storage Center,College of Chemistry,Nankai University,Tianjin 300071,China

出　　处：《Chinese Chemical Letters》2023年第4期449-452,共4页中国化学快报（英文版）

基　　金：the financial support from the National Natural Science Foundation of China (No. 22022406);the Natural Science Foundation of Tianjin (Nos. 20JCJQJC00110 and 20JCYBJC00590);the 111 project (No. B12015);the Haihe Laboratory of Sustainable Chemical Transformations。

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.

关 键 词：Suzuki-Miyaura cross-coupling reaction Au-Pd SERS In situ monitoring KINETICS 

分 类 号：O657.37[理学—分析化学] O621.25[理学—化学]