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dc.contributor.authorTian, ZQ
dc.contributor.author田中群
dc.contributor.authorLi, WH
dc.contributor.authorMao, BW
dc.contributor.author毛秉伟
dc.contributor.authorZou, SZ
dc.contributor.authorGao, JS
dc.date.accessioned2012-08-26T01:40:40Z
dc.date.available2012-08-26T01:40:40Z
dc.date.issued1997
dc.identifier.citationAPPLIED SPECTROSCOPY,1997,50(12):1569-1577zh_CN
dc.identifier.issn0003-7028
dc.identifier.urihttps://dspace.xmu.edu.cn/handle/2288/13574
dc.description.abstractThis paper describes a novel technique called potential-averaged surface-enhanced Raman spectroscopy (PASERS) which has several advantages over SERS. A PASERS spectrum is acquired when the electrode is rapidly modulated between two potentials by applying a square-wave voltage. The potential-averaged SERS spectrum contains all the information on the surface species at the two modulated potentials, and each individual SERS spectrum can then be extracted by deconvolution, By properly choosing the two modulating potentials, one can obtain SERS spectra of surface species at electrode potentials where SERS-active sites are normally unstable. PASERS also leads to a unique way of studying complex interfacial kinetic processes by controlling the voltage pulse height, frequency, and shape. Moreover, the measurement of time-resolved spectra in the very Low vibrational frequency region can be achieved by PASERS with the use of a conventional scanning spectrometer with a single-channel detector, In this paper, the main advantages of PASERS are illustrated by studying two typical SERS systems, i.e., thiocyanate ion and thiourea adsorbed at silver electrodes, respectively. It is shown that the potential-averaging method can be applied as a common method to many other existing spectroelectrochemical techniques.zh_CN
dc.language.isoenzh_CN
dc.publisherSOC APPLIED SPECTROSCOPYzh_CN
dc.subjectsurface-enhanced Raman spectroscopyzh_CN
dc.subjecttime-resolved measurementszh_CN
dc.subjectelectrochemistryzh_CN
dc.subjectpotential modulationzh_CN
dc.subjectsilver electrodeszh_CN
dc.subjectadsorptionzh_CN
dc.titlePotential-averaged surface-enhanced Raman spectroscopyzh_CN
dc.typeArticlezh_CN


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