Microstructure Analysis Tools for Quantification of Key Structural Properties of Fuel Cell Materials
Microstructure Analysis Tools for Quantification of Key Structural Properties of Fuel Cell Materials
复制标题
用于量化燃料电池材料关键结构特性的微观结构分析工具
DOI：
--
复制
发表时间：
2011
期刊：
影响因子：
--
通讯作者：
E. C. Kumbur
中科院分区：
文献类型：
--
作者：
A. Çeçen;E. A. Wargo;A. C. Hanna;D. M. Turner;S. Kalidindi;E. C. Kumbur
这项工作的目的是开发先进的微观结构分析工具，直接量化复杂的燃料电池材料的关键结构特性。计算效率高的算法已被开发，以提取这些材料的测量微观结构数据集的关键结构参数。除了确定传统的结构措施（例如，孔隙率、表面积、相连通性），引入了两种新的微观结构分析技术，用于量化孔径和弯曲度分布。为了初步演示的目的，开发的方法应用于数字重建的样品的聚合物电解质燃料电池（PEFC）的微孔层（MPL）。从这些分析产生的结果进行比较，以前报道的实验和模型推导的值在适用的情况下。
The objective of this work is to develop advanced microstructure analysis tools for direct quantification of the key structural properties of complex fuel cell materials. Computationally efficient algorithms have been developed to extract the key structural parameters from measured microstructure datasets of these materials. In addition to determination of the traditional structural measures (e.g., porosity, surface area, phase connectivity), two novel microstructure analysis techniques are introduced for the quantification of pore size and tortuosity distributions. For initial demonstration purposes, the methods developed are applied to a digitally reconstructed sample of the micro-porous layer (MPL) of a polymer electrolyte fuel cell (PEFC). The results produced from these analyses are compared to previously reported experimental and model-derived values where applicable.