Quantifying Microstructure Features for High-Performance Solid Oxide Cells

doi:10.3390/ma17112622

2024-05-29

Cristina Mariana Ruse *

DOI：10.3390/ma17112622

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摘要

En 中文

The drive for sustainable energy solutions has spurred interest in solid oxide fuel cells (SOFCs). This study investigates the impact of sintering temperature on SOFC anode microstructures using advanced 3D focused ion beam-scanning electron microscopy (FIB-SEM). The anode's ceramic-metal composition significantly influences electrochemical performance, making optimization crucial. Comparing cells sintered at different temperatures reveals that a lower sintering temperature enhances yttria-stabilized zirconia (YSZ) and nickel distribution, volume, and particle size, along with the triple-phase boundary (TPB) interface. Three-dimensional reconstructions illustrate that the cell sintered at a lower temperature exhibits a well-defined pore network, leading to increased TPB density. Hydrogen flow simulations demonstrate comparable permeability for both cells. Electrochemical characterization confirms the superior performance of the cell sintered at the lower temperature, displaying higher power density and lower total cell resistance. This FIB-SEM methodology provides precise insights into the microstructure-performance relationship, eliminating the need for hypothetical structures and enhancing our understanding of SOFC behavior under different fabrication conditions.

Keyword:

solid oxide fuel cells (SOFCs)

focused ion beam-scanning electron microscopy (FIB-SEM)

microstructure

triple-phase boundary (TPB)

3D reconstruction

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期刊

Materials

IF:

3.2

论文数:

5.7W

被引数:

15.1W

机构

university of louisiana lafayette

学者数:

1.8K

论文数: 1.6K

被引数: 0

引用论文

Correlation between triple phase boundary and the microstructure of Solid Oxide Fuel Cell anodes: The role of composition, porosity and Ni densification 三相边界与固体氧化物燃料电池阳极微观结构之间的相关性: 组成，孔隙率和Ni致密化的作用

JOURNAL OF POWER SOURCES

IF7.9

2017-10-01

OAAI

Lu, Xuekun; Heenan, Thomas M. M.; Bailey, Josh J.; Li, Tao; Li, Kang; Brett, Daniel J. L.; Shearing, Paul R.

Three-dimensional reconstruction of a solid-oxide fuel-cell anode 固体氧化物燃料电池阳极的三维重建

NATURE MATERIALS

IF38.5

2006-06-11

769

PREAI

Wilson, James R.; Kobsiriphat, Worawarit; Mendoza, Roberto; Chen, Hsun-Yi; Hiller, Jon M.; Miller, Dean J.; Thornton, Katsuyo; Voorhees, Peter W.; Adler, Stuart B.; Barnett, Scott A.

Quantitative Study on the Correlation Between Solid Oxide Fuel Cell Ni-YSZ Composite Anode Performance and Sintering Temperature Based on Three-dimensional Reconstruction

JOURNAL OF THE ELECTROCHEMICAL SOCIETY

IF3.3

2012-01-01

PREAI

Jiao, Zhenjun; Lee, Gyeonghwan; Shikazono, Naoki; Kasagi, Nobuhide

Percolation effects in functionally graded SOFC electrodes

ELECTROCHIMICA ACTA

IF5.6

2007-02-01

PREAI

Schneider, L. C. R.; Martin, C. L.; Bultel, Y.; Dessemond, L.; Bouvard, D.