In situ Surface-enhanced Raman Scattering Spectro-electrochemical Observation of 2-Mercaptopyridine Self-assembled Monolayer on Zinc Electrode

Acta Chimica Sinica ›› 2008, Vol. 66 ›› Issue (11): 1333-1336. Previous Articles Next Articles

锌电极上2-巯基吡啶自组装单层的原位表面增强拉曼光谱电化学观察

纪佳华，杨海峰*，马晓玲，孙一平，朱璇，宋巍，段国萍

(上海师范大学化学系上海 200234)

投稿日期:2007-05-08 修回日期:2008-01-20 发布日期:2008-06-14
通讯作者: 杨海峰

In situ Surface-enhanced Raman Scattering Spectro-electrochemical Observation of 2-Mercaptopyridine Self-assembled Monolayer on Zinc Electrode

JI, Jia-Hua; YANG, Hai-Feng*; MA, Xiao-Ling; SUN, Yi-Ping; ZHU, Xuan; SONG, Wei; DUAN, Guo-Ping

(Department of Chemistry, Shanghai Normal University, Shanghai 200234)

Received:2007-05-08 Revised:2008-01-20 Published:2008-06-14
Contact: YANG, Hai-Feng

Abstract

The adsorption and desorption behavior of 2-mercaptopyridine monolayer on a Zn electrode was observed by surface-enhanced Raman spectroscopy (SERS). The SERS experimental results showed that the 2-mercaptopyridine (2-MPy) was adsorbed on the Zn electrode through S and N atoms leading to its pyridine ring perpendicular with respect to the surface. When the potential reached －1.4 V vs. SCE, the 2-mercaptopyridine molecules tended to depart from the Zn surface along with the change of adsorption mode and were entirely desorbed at －1.6 V vs. SCE.

Key words: zinc electrode, 2-mercaptopyridine, self-assembled monolayer, in-situ surface-enhanced Raman spectroscopy, electrochemistry

Cite this article

JI, Jia-Hua; YANG, Hai-Feng*; MA, Xiao-Ling; SUN, Yi-Ping; ZHU, Xuan; SONG, Wei; DUAN, Guo-Ping. In situ Surface-enhanced Raman Scattering Spectro-electrochemical Observation of 2-Mercaptopyridine Self-assembled Monolayer on Zinc Electrode[J]. Acta Chimica Sinica, 2008, 66(11): 1333-1336.

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锌电极上2-巯基吡啶自组装单层的原位表面增强拉曼光谱电化学观察

In situ Surface-enhanced Raman Scattering Spectro-electrochemical Observation of 2-Mercaptopyridine Self-assembled Monolayer on Zinc Electrode

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