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dc.contributor.author崔智zh_CN
dc.contributor.author王超zh_CN
dc.contributor.author沈水云zh_CN
dc.contributor.author蒋峰景zh_CN
dc.contributor.author章俊良zh_CN
dc.contributor.authorCUI Zhizh_CN
dc.contributor.authorWANG Chaozh_CN
dc.contributor.authorSHEN Shui-yunzh_CN
dc.contributor.authorJIANG Feng-jingzh_CN
dc.contributor.authorZHANG Jun-liangzh_CN
dc.date.accessioned2015-06-29T00:51:56Z
dc.date.available2015-06-29T00:51:56Z
dc.date.issued2015-06-28zh_CN
dc.identifier.citation电化学,2015,21(3):273-278.zh_CN
dc.identifier.issn1006-3471zh_CN
dc.identifier.urihttp://dx.doi.org/10.13208/j.electrochem.141055zh_CN
dc.identifier.urihttps://dspace.xmu.edu.cn/handle/2288/84992
dc.description.abstract氢氧燃料电池的性能与质子交换膜的性能密切相关. 在燃料电池运行过程中,反应生成的水和加湿气体所含水的扩散渗透与膜内质子拖拽共同作用实现膜中水的平衡,影响膜的欧姆电阻,进而影响电池性能. 本文通过掺杂Pt/C对质子膜进行改性,并测试了改性膜的交流阻抗、吸水特性等物理性质和单电池性能及高频阻抗,说明由膜中的Pt/C催化剂原位催化渗透到膜中的氢气和氧气反应生成水,改善了电池低湿度运行时膜的含水率,从而降低膜电阻,提升电池性能.zh_CN
dc.description.abstractThe property of proton exchange membrane greatly affects the performance of proton exchange membrane fuel cells (PEMFC). During the operation of a PEMFC, the water produced at the cathode, the water vapor from the humidified feed gas and the water migrated by electro-dragging will reach a balance in the membrane and determine the resistance of PEMFC, and thus affect the performance of PEMFC. Normally, the PEMFC performance strongly depends on the relative humidity of the feed gas, and the performance decreases at lower humidity as a result of lower proton conductivity of the membrane. In this paper, we proposed to employ a Pt/C modified proton exchange membrane by promoting the H2 and O2 (that diffuse into the membrane from the feed gases) reactions in the membrane to produce water locally, and consequently improving the water content in the membrane. The AC resistance and water sorption property of the membrane, the performance and high frequency resistance of the cell prepared with home-made membrane were investigated in detail. It is found that the Ohmic resistance of the membrane was decreased under the same operation conditions and the PEMFC performance was greatly improved.zh_CN
dc.description.sponsorship国家自然科学基金项目(No. 21373135)、科技部863计划(No. 2013AA110202)以及教育部科技研究项目(2013)资助zh_CN
dc.language.isozhzh_CN
dc.publisher厦门大学《电化学》编辑部zh_CN
dc.relation.ispartofseries化学电源及其材料近期研究专辑(客座编辑:复旦大学 夏永姚教授)zh_CN
dc.relation.ispartofseriesSpecial Issue of Chemical Power Source and Its Materials (Guest Editor: Professor XIA Yong-yao)zh_CN
dc.source.urihttp://electrochem.xmu.edu.cn/CN/abstract/abstract10163.shtmlzh_CN
dc.subject质子交换膜zh_CN
dc.subject燃料电池性能zh_CN
dc.subject相对湿度zh_CN
dc.subject高频阻抗zh_CN
dc.subjectproton exchange membranezh_CN
dc.subjectPEMFC performancezh_CN
dc.subjectrelative humidityzh_CN
dc.subjecthigh frequency resistancezh_CN
dc.titlePt/C改性的质子交换膜在燃料电池中的应用zh_CN
dc.title.alternativePt/C Modified Proton Exchange Membrane for Improved Fuel Cell Performancezh_CN
dc.typeArticlezh_CN
dc.description.note作者联系地址:上海交通大学燃料电池研究所,上海 200240zh_CN
dc.description.noteAuthor's Address: Institute of Fuel Cells, School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, Chinazh_CN
dc.description.note通讯作者E-mail:junliang.zhang@sjtu.edu.cnzh_CN


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