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dc.contributor.authorDing Yue-Min
dc.contributor.authorLiu Yao-Long
dc.contributor.authorRao Gui-Shi
dc.contributor.authorWang Guo-Fu
dc.contributor.authorZhong Qi-Ling
dc.contributor.authorRen Bin
dc.contributor.author任斌
dc.contributor.authorTian Zhong-Qun
dc.contributor.author田中群
dc.date.accessioned2011-05-29T14:50:55Z
dc.date.available2011-05-29T14:50:55Z
dc.date.issued2007-11
dc.identifier.citationCHINESE JOURNAL OF CHEMISTRY,2007,25(11):1617-1621zh_CN
dc.identifier.issn1001-604X
dc.identifier.urihttp://dx.doi.org/doi:10.1002/cjoc.200790299
dc.identifier.urihttps://dspace.xmu.edu.cn/handle/2288/9251
dc.description.abstractThe electrochemical and in-situ surface-enhanced Raman spectroscopy (SERS) techniques were used to investigate the electrooxidation behavior of methanol in acidic, neutral and alkaline media at a Pt-Ru nanoparticle modified glassy carbon (Pt-Ru/GC) electrode. The results showed that methanol could be dissociated spontaneously at the Pt-Ru/GC electrode to produce a strongly adsorbed intermediate, CO. It was found that CO could be oxidized more easily in the alkaline medium than in the acidic and neutral media. The peak potential of methanol oxidation was shifted from 0.663 and 0.708 V in the acidic and neutral media to -0.030 V in the alkaline medium, which is due to that the adsorption strength of CO on the Pt surface in the alkaline medium is weaker than that in the acidic and neutral media. The final product of the methanol oxidation is C02. However, in the alkaline medium, CO2 proCO(2) duced would form CO32- and HCO3- resulting in the decrease in the alkaline concentration and then in the decrease in the performance of DMFC. Therefore, the performance of the alkaline DMFC is not stable.zh_CN
dc.language.isoenzh_CN
dc.publisherWILEY-V C H VERLAG GMBHzh_CN
dc.subjectmethanol oxidationzh_CN
dc.subjectplatinum-ruthenium nanoparticlezh_CN
dc.subjectglassy carbon electrodezh_CN
dc.subjectalkaline mediumzh_CN
dc.subjectsurface-enhanced Raman spectroscopyzh_CN
dc.titleElectrooxidation mechanism of methanol at Pt-Ru catalyst modified GC electrode in electrolytes with different pH using electrochemical and SERS techniqueszh_CN
dc.typeArticlezh_CN


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