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  • Title: Insight in the relationship between the structure and property of methimazole monolayers on a silver surface: electrochemical and Raman study.
    Author: Zhang R, Wen Y, Wang N, Wang Y, Wang Y, Zhang Z, Yang H.
    Journal: J Phys Chem B; 2010 Feb 25; 114(7):2450-6. PubMed ID: 20112979.
    Abstract:
    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.
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