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dc.contributor.author李红zh_CN
dc.contributor.author江琳才zh_CN
dc.contributor.author蒋雄zh_CN
dc.contributor.authorLi Hongzh_CN
dc.contributor.authorJiang Lincaizh_CN
dc.contributor.authorJiang Xiongzh_CN
dc.date.accessioned2013-11-18T07:43:27Z
dc.date.available2013-11-18T07:43:27Z
dc.date.issued1995-02-28zh_CN
dc.identifier.citation电化学,1995,1(01):56-64.zh_CN
dc.identifier.issn1006-3471zh_CN
dc.identifier.urihttps://dspace.xmu.edu.cn/handle/2288/57186
dc.description.abstract研究了甲醛和甲酸在Pt/Sb_(ad)电极上的电催化氧化,在甲醛的情况下,在电位约0.7V处出现一个氧化峰;在甲酸的情况下,第一氢化峰的峰电流增加约4倍.当覆盖度为0.75±0.05时,电极显现最高活性,吸附锑原子在铂电极上具有催化活性的主要原因是通过几何效应阻止吸附毒物(PT- ̄*C=O)的生成。此外,讨论了电解时间、沉积电位、介质等因素对Pt/Sb_(ad)电极催化活性的影响,提出了在较低电位下,甲醛和甲酸在Pt/Sb_(ad)电极上催化氧化的机理.zh_CN
dc.description.abstractThe electrocatalytic activity for the oxidation of formaldehyde and formic acid ona Sb-modified platinum (Pt/Sb_(ad))was investigated.Results showed that the Pt/Sb_(ad) electrode waselectrocatalytically more active than a Pt electrode in the anodic oxidation of formaldehyde and formicacid.In the case of formaldehyde,an oxidation peak appeared at a potential of ca.0.7V.During theoxidation of formic acid,a 4-fold increase in the 1st peak current was observed.The Sb-modifiedplatinum electrode was found to be most electrocatalytically active at a coverage of 0.75±0.05.Theelectrocatalytic activity of the Pt/Sb_(ad) electrode can be best explained in terms of the geometrical effect,which may lead to the inhibition of the formation of the adsorbed poison Pt-C=O.The reactionmechanism for the catalytic oxidation of the two subetances at a lower potential on a Pt/Sb_(ad) electrodewas suggested.The effects of other factors including electrolysis time,deposition potential and mediaon the electrocatalytic activity were also studied and discussed.zh_CN
dc.language.isozhzh_CN
dc.publisher厦门大学《电化学》编辑部zh_CN
dc.relation.ispartofseries研究论文zh_CN
dc.relation.ispartofseriesArticleszh_CN
dc.source.urihttp://electrochem.xmu.edu.cn/CN/abstract/abstract9761.shtmlzh_CN
dc.subject电催化氧化zh_CN
dc.subject吸附锑原子zh_CN
dc.subject欠电位沉积zh_CN
dc.subject铂电极zh_CN
dc.subject甲醛zh_CN
dc.subject甲酸zh_CN
dc.subjectElectrocatalytic oxidationzh_CN
dc.subjectAdsorbed antimony atomzh_CN
dc.subjectUnderpotentialdepositionzh_CN
dc.subjectPlatinum electrodezh_CN
dc.subjectFormaldehydezh_CN
dc.subjectFormic acidzh_CN
dc.title甲醛和甲酸在Pt/Sb_(ad)电极上的电催化氧化zh_CN
dc.title.alternativeElectrocatalytic Oxidation of Formaidehyde and Formic Acid on a Pt/Sb_(ad) Electrodezh_CN
dc.typeArticlezh_CN
dc.description.note作者联系地址:华南师范大学化学系zh_CN
dc.description.noteAuthor's Address: Department of Chemistry,South China Normal University,Guangzhou 510631zh_CN


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