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dc.contributor.author樊友军
dc.contributor.author甄春花
dc.contributor.author陈声培
dc.contributor.author孙世刚
dc.date.accessioned2016-05-17T02:51:22Z
dc.date.available2016-05-17T02:51:22Z
dc.date.issued2009
dc.identifier.citation物理化学学报,2009,(5):193-197
dc.identifier.issn1000-6818
dc.identifier.otherWLHX200905034
dc.identifier.urihttps://dspace.xmu.edu.cn/handle/2288/106288
dc.description.abstract运用电化学循环伏安和程序电位阶跃方法研究了阴离子特性吸附和PT(111)电极表面结构对乙二醇解离吸附反应动力学的影响.结果表明,阴离子特性吸附显著影响乙二醇的解离吸附,在高氯酸介质中(无特性吸附)测得乙二醇解离吸附反应的初始速率VI以及解离吸附物种(dA)的饱和覆盖度均明显大于硫酸溶液(发生SO24-/HSO4-特性吸附)中的相应值;其平均速率V随电极电位的变化呈类似火山型分布,最大值位于0.22V(VSSCE)附近.还发现通过不同处理获得的PT(111)电极的不同表面结构对这一表面过程也具有显著的影响.
dc.description.abstractThe effect of specific adsorption of anions and the surface structure of a Pt(111) electrode on the kinetics of dissociative adsorption of ethylene glycol (EG) was studied using cyclic voltammetry and a programmed potential step technique.Quantitative results demonstrated that the specific adsorption of anions remarkably influenced the dissociative adsorption of EG.Both the initial reaction rate (vi) of the EG dissociative adsorption and the saturated coverage of dissociative adsorbates, measured in perchloric acid media (without specific adsorption), are significantly larger than the corresponding values acquired in sulfuric acid media (with specific adsorption of SO420-/HSO4-).We illustrate that the variation of the average reaction rate v of EG dissociative adsorption on Pt(111) in perchloric acid media with an electrode potential yields a volcano-like distribution with a maximum value near 0.22 V (vs SCE).Furthermore, different surface structures of the Pt(111) electrode that were obtained by different treatments also significantly affect this surface process.
dc.description.sponsorship国家自然科学基金(20673091;20833005);广西师范大学博士科研启动基金资助
dc.language.isozh_CN
dc.subject乙二醇
dc.subject解离吸附
dc.subjectPt(111)电极
dc.subject特性吸附
dc.subject表面结构
dc.subject表面反应动力学
dc.subjectEthylene glycol
dc.subjectDissociative adsorption
dc.subjectPt(111) electrode
dc.subjectSpecific adsorption
dc.subjectSurface structure
dc.subjectSurface reaction kinetics
dc.title阴离子特性吸附和Pt(111)电极表面结构对乙二醇解离吸附动力学的影响
dc.title.alternativeEffect of Specific Adsorption of Anions and Surface Structure of Pt(111) Electrode on Kinetics of Dissociative Adsorption of Ethylene Glycol
dc.typeArticle


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