摘要
对于在分子水平上研究电化学表面吸附和反应过程,表面增强拉曼光谱(SERS)显示出了其独到的优势,提供了有力的技术方法,但对于其表面增强机理仍有待深入研究.本文总结了将量子化学计算应用于电化学表面增强拉曼光谱(EC-SERS)分析的研究,以电化学界面分子吸附、电化学反应以及光电化学反应的研究体系为模型,提取EC-SERS光谱所蕴藏的物理化学信息.通过对吡啶在电化学表面的吸附、水的吸附及其电化学反应、以及对巯基苯胺的电化学表面催化偶联反应等体系的研究,揭示了电化学表面吸附、反应和光电化学过程的本质.
Considering the study of electrochemical surface adsorption and reaction processes at the molecular level, Surface-enhanced Raman spectroscopy (SERS) shows its particular merits and provides a powerful tech- nical method for this study. However, the mechanism of enhancement needs to be further explored. This re- view summarizes the systematic work on electrochemical SERS (EC-SERS) by combining quantum chemistry calculations. On the basis of these studies, we can make deep insight for extracting the physical and chemical information in EC-SERS spectra. Focusing on adsorption of pyridine on the electrochemical surface, adsorption and reactional process of water on the surface, and surface coupling reaction for p-aminothiophenol, we had illustrated the nature of the adsorption and photochemical reactions on the electrochemical surface.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
2015年第11期2087-2098,共12页
Chemical Journal of Chinese Universities
基金
国家自然科学基金(批准号:21373712,21321062,21533006)
国家重点基础研究项目(批准号:2015CB932303)
厦门大学固体表面物理化学国家重点实验室开放基金(批准号:201416)资助~~
关键词
量子化学
表面增强拉曼光谱
电荷转移态
表面等离激元共振
电化学
Quantum chemistry
Surface-enhanced Raman spectroscopy
Charge transfer state
Surfaceplasmon resonance
Electrochemistry f]L^J ~pi'~