Insight in the relationship between the structure and property of methimazole monolayers on a silver surface: electrochemical and Raman study.
Methimazole (MMI) monolayers on the silver surface were studied by electrochemical impedance spectroscopy (EIS), electrochemical polarization measurement, and surface-enhanced Raman scattering (SERS) spectroscopy. The EIS mechanism of the silver surface with MMI monolayers was fitted with the mode of LR(QR)(QR), and the electrochemical polarization experimental results showed a high inhibitive efficiency around 82.6%. SERS results indicated that the MMI molecule with a tilted orientation anchored at the silver surface via S(6), N(2), and N(5) atoms, resulting in a strong interaction between the MMI molecule and the surface. In situ electrochemical SERS observation suggested that the molecule experienced a transition state of the adsorption because of the electrochemical hydrogen evolution reaction occurred about -0.1 V vs SCE.
Zhang
Rui
R
Department of Chemistry, Shanghai Normal University, 100 Guilin Road, Shanghai 200234, PR China.
Wen
Ying
Y
Wang
Na
N
Wang
Yao
Y
Wang
Yingying
Y
Zhang
Zongrang
Z
Yang
Haifeng
H
D013956:Antithyroid Agents / Q000737:chemistry*; D055664:Electrochemical Techniques; D008713:Methimazole / Q000737:chemistry*; D012834:Silver / Q000737:chemistry*; D013059:Spectrum Analysis, Raman; D013499:Surface Properties
D013956:Antithyroid Agents; D012834:Silver; D008713:Methimazole