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dc.contributor.author揭晓zh_CN
dc.contributor.author侯俊波zh_CN
dc.contributor.author邵志刚zh_CN
dc.contributor.author衣宝廉zh_CN
dc.contributor.authorJIE Xiaozh_CN
dc.contributor.authorHOU Jun-bozh_CN
dc.contributor.authorSHAO Zhi-gangzh_CN
dc.contributor.authorYI Bao-lianzh_CN
dc.date.accessioned2013-11-18T07:46:52Z
dc.date.available2013-11-18T07:46:52Z
dc.date.issued2009-05-28zh_CN
dc.identifier.citation电化学,2009,15(02):212-215.zh_CN
dc.identifier.issn1006-3471zh_CN
dc.identifier.urihttps://dspace.xmu.edu.cn/handle/2288/58267
dc.description.abstract以旋转圆盘电极模拟PEMFC阴极,计时库仑、循环伏安、线性扫描等电化学方法研究Cu2+电解液对碳载铂催化剂电化学活性和氧还原性能的影响.结果表明,在恒电位0.49 V下,Pt/C催化剂活性比表面(ECA)明显减小,此际基底可能发生Cu欠电位沉积,从而掩盖催化剂的活性比表面;数据拟合指明Cu欠电位沉积占据催化剂表面部分氧原子吸附点位,使该点位桥式吸附的氧原子转变为顶式吸附氧原子.zh_CN
dc.description.abstractRotating disk electrode was adopted in this paper to simulate the cathode in PEMFC.In the Cu2+ electrolyte,the influence of impurity Cu2+ on Carbon-Supported Pt Catalysts was investigated by using electrochemical measurements such as chronocoulometry,cyclic voltammetry and linear sweep.Experimental results showed that,after constant voltage at 0.49 V,the ECA of Pt/C decreased dramatically,it's perhaps under potential deposition of Cu might occur on the substrate.Meanwhile the change of ORR Tafel scope reaction is very large.It might be because oxygen adsorption sites are occupied by Cu atoms after they under potential deposit on surface of Pt/C catalyst,and the adsorption of oxygen on catalyst surface change from bridge type to top type.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/abstract8532.shtmlzh_CN
dc.subject质子交换zh_CN
dc.subject膜燃料电池zh_CN
dc.subject离子污染zh_CN
dc.subject旋转圆盘电极zh_CN
dc.subject氧还原zh_CN
dc.subjectproton exchange membrane fuel cellzh_CN
dc.subjectcation contaminantszh_CN
dc.subjectrotating disk electrodezh_CN
dc.subjectoxygen reduction reactionzh_CN
dc.titleCu~(2+)对质子交换膜燃料电池氧电极性能的影响zh_CN
dc.title.alternativeEffect of Impurity Cu~(2+) on Oxygen Electrode in PEMFCzh_CN
dc.typeArticlezh_CN
dc.description.note作者联系地址:中国科学院大连化学物理研究所燃料电池系统与工程研究组;中国科学院研究生院;zh_CN
dc.description.noteAuthor's Address: 1.Dalian Institute of Chemical Physics,Chinese Academy of Sciences,Fuel Cell System and EngineeringLaboratory,Dalian 116023,Liaoning,China;2.Graduate School of the Chinese Academy of Sciences,Beijing 100039,Chinazh_CN


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