Please use this identifier to cite or link to this item:
http://hdl.handle.net/10397/24709
Title: | Percolation theory in solid oxide fuel cell composite electrodes with a mixed electronic and ionic conductor | Authors: | Chen, D He, H Zhang, D Wang, H Ni, M |
Issue Date: | 2013 | Source: | Energies, Mar. 2013, v. 6, no. 3, p. 1632-1656 | Abstract: | Percolation theory is generalized to predict the effective properties of specific solid oxide fuel cell composite electrodes, which consist of a pure ion conducting material (e.g., YSZ or GDC) and a mixed electron and ion conducting material (e.g., LSCF, LSCM or CeO2). The investigated properties include the probabilities of an LSCF particle belonging to the electron and ion conducting paths, percolated three-phase-boundary electrochemical reaction sites, which are based on different assumptions, the exposed LSCF surface electrochemical reaction sites and the revised expressions for the inter-particle ionic conductivities among LSCF and YSZ materials. The effects of the microstructure parameters, such as the volume fraction of the LSCF material, the particle size distributions of both the LSCF and YSZ materials (i.e., the mean particle radii and the non-dimensional standard deviations, which represent the particle size distributions) and the porosity are studied. Finally, all of the calculated results are presented in non-dimensional forms to provide generality for practical application. Based on these results, the relevant properties can be easily evaluated, and the microstructure parameters and intrinsic properties of each material are specified. | Keywords: | Coordination number Electrochemically active sites LSCF Mixed electron and ion conductor Percolation theory Solid oxide fuel cell Three-phase-boundary sites |
Publisher: | Molecular Diversity Preservation International (MDPI) | Journal: | Energies | EISSN: | 1996-1073 | DOI: | 10.3390/en6031632 | Rights: | © 2013 by the authors; licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/). The following publication Chen, D.; He, H.; Zhang, D.; Wang, H.; Ni, M. Percolation Theory in Solid Oxide Fuel Cell Composite Electrodes with a Mixed Electronic and Ionic Conductor. Energies 2013, 6, 1632-1656 is available at https://dx.doi.org/10.3390/en6031632 |
Appears in Collections: | Journal/Magazine Article |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Chen_Percolation_Solid_Oxide.pdf | 1.7 MB | Adobe PDF | View/Open |
Page views
142
Last Week
2
2
Last month
Citations as of Apr 21, 2024
Downloads
78
Citations as of Apr 21, 2024
SCOPUSTM
Citations
31
Last Week
0
0
Last month
0
0
Citations as of Apr 19, 2024
WEB OF SCIENCETM
Citations
28
Last Week
0
0
Last month
0
0
Citations as of Apr 25, 2024
Google ScholarTM
Check
Altmetric
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.