Development of the overpotential simulator for polymer electrolyte fuel cells and application for optimization of cathode structure
Development of the overpotential simulator for polymer electrolyte fuel cells and application for optimization of cathode structure
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DOI：
10.1016/j.apsusc.2008.03.165
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发表时间：
2008-09-30
影响因子：
6.7
通讯作者：
Miyamoto, Akira
中科院分区：
文献类型：
--
作者：
Hattori, Tatsuya;Suzuki, Ai;Miyamoto, Akira
为了研究聚合物电解质燃料电池阴极催化剂层的微观结构对过电位特性的影响，提出了一种新的计算方法。应用三维多孔结构模拟器建立了三维阴极催化剂层模型，并利用该模型研究了阴极催化剂层的过电位特性。结果表明，随着离聚体厚度分布标准差的减小，超电势减小，这是由于活性中心数目的增加。(C)2008 Elsevier B.V.保留所有权利。
We developed a novel computational method to investigate the influences of the microstructure of the polymer electrolyte fuel cell cathode catalyst layer on the overpotential characteristic toward its optimization. Three-dimensional cathode catalyst layer models were constructed by applying three-dimensional porous structure simulator and developed simulator was used to study the overpotential characteristics. Our results showed that the overpotential decreased as decrease of the standard deviation of the ionomer thickness distribution due to the increase of number of active sites. (C) 2008 Elsevier B.V. All rights reserved.