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dc.contributor.authorGu, Wei
dc.contributor.authorLiu, Guokun
dc.contributor.authorRen, Bin
dc.contributor.author任斌
dc.contributor.authorWu, Deyin
dc.contributor.author吴德印
dc.contributor.authorGu, Renao
dc.contributor.author顾仁敖
dc.contributor.authorTian, Zhongqun
dc.contributor.author田中群
dc.date.accessioned2011-10-13T14:19:58Z
dc.date.available2011-10-13T14:19:58Z
dc.date.issued2005
dc.identifier.citationSCIENCE IN CHINA SERIES B-CHEMISTRY,2006,48(6):497-503zh_CN
dc.identifier.issn1006-9291
dc.identifier.urihttp://dx.doi.org/doi:10.1360/042005-13
dc.identifier.urihttps://dspace.xmu.edu.cn/handle/2288/10915
dc.description.abstractThe interaction of imidazole with Co electrodes in an electrochemical system was studied by surface-enhanced Raman scattering (SERS) and electrochemical methods. The SER spectra of Cc in an imidazole solution as a function of the applied potential were analyzed and the assignment of the Raman bands was made. It was found that there were three kinds of surface species on the Co surface in different potential regions and they were interchangeable depending on the potential. In a relatively negative potential region (-1.2 to -0.9 V), imidazole was adsorbed on the surface and its orientation might change from a vertical configuration via the N-end of the pyridine ring to a tilted configuration via the C2=N3 double bond. In a more positive potential region (-0.8 to -0.7 V), the SERS signal from the adsorbed imidazole weakened and finally disappeared, meanwhile the signal from the Co and imidazole complex strengthened gradually. At the open circuit potential (-0.6 V), we detected very strong bands from the Co oxides. By comparing the Tafel curves of the Co electrode in the solution without and with imidazole, we found that imidazole has a marked effect on the corrosion inhibition of the Cc electrode. This result demonstrates that we may be able to reveal the complicated interaction of surface species with metal surface at the molecular level by combining the SERS and electrochemical methods.zh_CN
dc.language.isoenzh_CN
dc.publisherSCIENCE PRESSzh_CN
dc.subjectcobaltzh_CN
dc.subjectimidazolezh_CN
dc.subjectinhibitionzh_CN
dc.subjectsurface-enhanced Raman spectroscopyzh_CN
dc.subjectTafel plotzh_CN
dc.titleAdsorption and corrosion inhibition behavior of imidazole on cobalt electrodes studied by SERS and electrochemical methodszh_CN
dc.typeArticlezh_CN


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