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dc.contributor.authorYANG, Yzh_CN
dc.contributor.authorLIN, ZGzh_CN
dc.contributor.author杨勇zh_CN
dc.date.accessioned2013-12-12T02:12:44Z
dc.date.available2013-12-12T02:12:44Z
dc.date.issued1994-01-31zh_CN
dc.identifier.citationJournal of Electroanalytical Chemistry, 1994,36423-30zh_CN
dc.identifier.issn1572-6657zh_CN
dc.identifier.otherWOS:A1994MW29200004zh_CN
dc.identifier.urihttps://dspace.xmu.edu.cn/handle/2288/62315
dc.description.abstractThe surface oxide species produced by electrochemical pretreatment of a glassy carbon electrode were characterized using in situ Fourier transform IR spectroscopy and electrochemical techniques in aqueous (H2O) and deuterated water (D2O) solutions. This study presents the first in situ IR evidence of the surface oxide species on glassy carbon electrodes in aqueous solution. The results showed that the potential-dependent frequency shift is about 30 cm-1 V-1 for quinone-like species in deuterated water. There is a distinctive potential dependence for carboxylic-like species. We also investigated the effect of potential changes on the surface composition (i.e. transformation between quinone and hydroquinone etc.). On the basis of the reflectance theory of the surface film on a moderate-adsorption substrate, the origin of the changes in the spectral band and potential-dependent relationship are discussed. The open-circuit potential decay results implied that the acid-base behaviour is similar to that of graphite oxide.zh_CN
dc.language.isoen_USzh_CN
dc.source.urihttp://dx.doi.org/10.1016/0022-0728(93)02911-Zzh_CN
dc.subjectSCANNING TUNNELING MICROSCOPYzh_CN
dc.subjectPYROLYTIC-GRAPHITEzh_CN
dc.subjectACTIVATIONzh_CN
dc.subjectREFLECTANCEzh_CN
dc.subjectBEHAVIORzh_CN
dc.titleIN-SITU IR SPECTROSCOPIC CHARACTERIZATION OF SURFACE OXIDE SPECIES ON GLASSY-CARBON ELECTRODESzh_CN
dc.typeArticlezh_CN


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