A SERS-Active Surface Of Ni Electrode Obtained By Electrochemistry Method And Application Of Inhibitions On Its Surface

Surface-enhanced Raman Spectroscopy (SERS) is one of most sensitive technique which is suitable for the investigation of electrochemical interfaces. Due to the important role of nickel on the application and fundamental studies, the main results and conclusions of this thesis are listed as follows:1. A SERS-active surface of Ni electrode is obtained by electrochemistry method, which improves the existing roughening process of Ni (chemical etching in HN03, then in-situ ORC).2. The roughen factor (R) of roughened Ni electrode is calculated by compared the differential capacitances of smooth and roughened Ni electrode. The theoretical calculation from the formula of the surface enhancement factor (SEF) reveals that the SEF of roughened Ni electrode is about 4 orders.3. Using the SERS-active roughened Ni surface as the substrates and combining SERS and conventional electrochemical methods as well as quantum chemical calculation, the inhibition and electrochemical corrosion process of Ni in solution of different pHs with the presence of BTAH is investigated.4. The adsorption and corrosion inhibition behavior of imidazole (IMH) on Ni and Co electrodes is studied and compared by SERS and electrochemical methods.