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dc.contributor.authorLi, Yong-Junzh_CN
dc.contributor.authorZhou, You-Chenzh_CN
dc.contributor.authorSun, Shi-Gangzh_CN
dc.contributor.author孙世刚zh_CN
dc.date.accessioned2011-04-26T08:03:13Z
dc.date.available2011-04-26T08:03:13Z
dc.date.issued2010-07zh_CN
dc.identifier.citationACTA PHYSICO-CHIMICA SINICA,2010,26(7):1773-1778zh_CN
dc.identifier.issn1000-6818zh_CN
dc.identifier.urihttp://dx.doi.org/doi:CNKI:SUN:WLHX.0.2010-07-010zh_CN
dc.identifier.urihttps://dspace.xmu.edu.cn/handle/2288/2107
dc.description.abstractLarge-scale core-shell SiO2/Pt particles were synthesized via layer. by. layer assembly. The platinum shell was found to be about 26 nm thick and consisted of Pt nanoparticle aggregates. Cyclic voltammetry (CV) was employed to evaluate the electrocatalytic activity of the as. prepared core. shell SiO2/Pt particles for CO detection. Compared with the bulk Pt catalyst, the main oxidation potential was more negative at about 0.49 V (vs SCE). Moreover, CO adsorption behavior was also examined using in. situ electrochemical Fourier transform infrared (FTIR) spectrum. Interestingly, the FTIR spectra showed inverted IR bands of linearly bonded CO and each IR band was split into two bands with an interval of ca 14 cm(-1), which was difficult to discern at saturation coverage of CO on the Pt metal surface. Those anomalous phenomena can most probably be attributed to the structural effects of core. shell SiO2/Pt particles.zh_CN
dc.description.sponsorshipNational Natural Science Foundation of China [20673091, 20703016]zh_CN
dc.language.isoenzh_CN
dc.publisherPEKING UNIV PRESSzh_CN
dc.subjectPlatinumzh_CN
dc.subjectCore-shell nanoparticlezh_CN
dc.subjectCarbon monoxidezh_CN
dc.subjectElectrooxidationzh_CN
dc.subjectIn-situ electrtochemical FTIR spectrumzh_CN
dc.titlePreparation of Core-Shell SiO2/Pt Particles via Layer-by-Layer Assembly and Their Electrooxidation and In-situ Electrochemical FTIR Spectra for COzh_CN
dc.typeArticlezh_CN


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