Quantitative analysis methods for three-dimensional microstructure of the solid-oxide fuel cell anode

11th International Conference on X-ray Microscopy

Song, X.^1 ; Guan, Y.^1 ; Liu, G.^1 ; Chen, L.^1 ; Xiong, Y.^1 ; Zhang, X.^1 ; Tian, Y.^1

National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei, ANHUI 230029, China^1

关键词: Electrochemical performance;    Internal microstructure;    Ni-YSZ anode;    Phase volume fraction;    Solid oxide fuel cell anodes;    Structural parameter;    Three-dimensional microstructures;    Triple phase boundary;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/463/1/012030/pdf
DOI  :  10.1088/1742-6596/463/1/012030

来源: IOP

【 摘 要 】

The electrochemical performance is closely related to three-dimensional microstructure of the Ni-YSZ anode. X-ray nano-tomography combined with quantitative analysis methods has been applied to non-destructively study the internal microstructure of the porous Ni-YSZ anode. In this paper, the methods for calculating some critical structural parameters, such as phase volume fraction, connectivity and active triple phase boundary (TPB) density were demonstrated. These structural parameters help us to optimize electrodes and improve the performance.