Surface-Enhanced Raman Spectra Studies on Roughened Zn Electrode in Alkaline Solutions
SHEN Xiao-ying1, LIU Guo-kun2, GU Ren-ao1*, TIAN Zhong-qun2
1. Department of Chemistry, Suzhou University, Suzhou 215006, China 2. State Key Laboratory for Physical Chemistry of Solid Surfaces, Department of Chemistry, Xiamen University, Xiamen 361005, China
Abstract：Electrochemical oxidation-reduction method was employed to roughen Zn electrode for obtaining SERS, and potential dependent surface enhanced Raman spectra (SERS) of roughened Zn electrode in KOH solution of different concentration wereobserved. The spectra of Zn electrode in various solutions had obvious differences which indicated the concentration of OH- had a great effect on the dissolution and passivation of zinc. Based on our experimental results, the authors attempt to analyse the behavior of zinc in alkaline and give the mechanism of its passivation.
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