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Electrochemical shell-isolated nanoparticle-enhanced Raman spectroscopy: correlating structural information and adsorption processes of pyridine at the Au(hkl) single crystal/solution interface.

Type of publication Peer-reviewed
Publikationsform Original article (peer-reviewed)
Author Li Jian-Feng, Zhang Yue-Jiao, Rudnev Alexander V, Anema Jason R, Li Song-Bo, Hong Wen-Jing, Rajapandiyan Panneerselvam, Lipkowski Jacek, Wandlowski Thomas, Tian Zhong-Qun,
Project Electron Transport at the Nanoscale - An Electrochemical Approach II
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Original article (peer-reviewed)

Journal Journal of the American Chemical Society
Volume (Issue) 137(6)
Page(s) 2400 - 8
Title of proceedings Journal of the American Chemical Society
DOI 10.1021/ja513263j


Electrochemical methods are combined with shell-isolated nanoparticle-enhanced Raman spectroscopy (EC-SHINERS) for a comprehensive study of pyridine adsorption on Au(111), Au(100) and Au(110) single crystal electrode surfaces. The effects of crystallographic orientation, pyridine concentration, and applied potential are elucidated, and the formation of a second pyridine adlayer on Au(111) is observed spectroscopically for the first time. Electrochemical and SHINERS results correlate extremely well throughout this study, and we demonstrate the potential of EC-SHINERS for thorough characterization of processes occurring on single crystal surfaces. Our method is expected to open up many new possibilities in surface science, electrochemistry and catalysis. Analytical figures of merit are discussed.