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dc.contributor.author许帆zh_CN
dc.contributor.author程璇zh_CN
dc.contributor.author张颖zh_CN
dc.contributor.author范钦柏zh_CN
dc.contributor.authorXU Fanzh_CN
dc.contributor.authorCHENG Xuanzh_CN
dc.contributor.authorZHANG Yingzh_CN
dc.contributor.authorFAN Qin-baizh_CN
dc.date.accessioned2013-11-18T07:46:37Z
dc.date.available2013-11-18T07:46:37Z
dc.date.issued2008-05-28zh_CN
dc.identifier.citation电化学,2008,14(02):190-196.zh_CN
dc.identifier.issn1006-3471zh_CN
dc.identifier.urihttps://dspace.xmu.edu.cn/handle/2288/58188
dc.description.abstract系统考察质子交换膜燃料电池组装(锁紧力,0.45~11.3 MPa)对其性能和寿命的影响,并确定了最佳锁紧力.以最佳锁紧力(3.2 MPa)的单电池作2000 h寿命测试,根据该单电池不同运行时间下的极化和功率曲线分析,得到与其活化区对应的电化学参数.XRD检测表明,电池组装施加的锁紧力不但影响电池的接触电阻,而且还影响由MEA微观结构决定的电池反应动力学性能.在最佳锁紧力作用下运行2000 h后的单电池在大电流密度区出现了明显的性能衰减,这主要是由于催化剂的团聚效应引起的.但在非最佳锁紧力作用下,阴极催化剂的团聚作用远大于阳极催化剂.zh_CN
dc.description.abstractThe lifetime performance was investigated by assembling the single cell of PEMFC under a series of holding forces ranging from 0.45 to 11.3 MPa and reassembled under optimal holding force.The polarization and power density curves were obtained during different periods of operating time up to 2000 hours and the fuel cell catalyst activation regions in the polarization curves were analyzed to evaluate the electrochemical kinetic parameters.The results revealed that the holding forces affected not only the internal contact resistances,but also the kinetic parameters which might be caused by the change of the MEA microstructures.The apparent degradation observed at higher current densities after 2000 h lifetime test under the optimal holding force of 3.2 MPa was due mainly to the increases of the catalyst particle sizes.However,the agglomeration in the particle sizes of cathode catalyst after 2000 h lifetime test at 3.2 MPa was less severe than that without optimal assembly force control.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/abstract8643.shtmlzh_CN
dc.subject质子交换膜燃料电池zh_CN
dc.subject接触电阻zh_CN
dc.subject电池锁紧力zh_CN
dc.subject膜电极zh_CN
dc.subject寿命性能zh_CN
dc.subjectproton exchange membrane fuel cellzh_CN
dc.subjectcontact resistancezh_CN
dc.subjectassembly forcezh_CN
dc.subjectmembrane electrode assemblyzh_CN
dc.subjectlifetime performancezh_CN
dc.title质子交换膜燃料电池的组装(锁紧力)对其寿命性能的影响(英文)zh_CN
dc.title.alternativeInfluence of Assembly Force in a PEMFC under a Lifetime Testzh_CN
dc.typeArticlezh_CN
dc.description.note作者联系地址:厦门大学化学化工学院化学系,厦门大学材料学院材料科学与工程系,厦门大学材料学院材料科学与工程系,美国气体技术研究院 福建厦门361005,福建厦门361005,固体表面物理化学国家重点实验室,福建厦门361005,福建厦门361005,美国伊利诺伊斯60018zh_CN
dc.description.noteAuthor's Address: 1.Department of Chemistry,College of Chemistry and Chemical Engineering,Xiamen University,Xiamen 361005,Fujian,China;2.Department of Materials Science and Engineering,College of Materials,Xiamen University,Xiamen 361005,Fujian,China;3.State Key Laboratory for Physical Chemistry of Solid Surfaces,Xiamen University,Xiamen 361005,Fujian,China;4.Gas Technology Institute,Des Plaines,IL 60018,USAzh_CN


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