Imperial College London
Alternate

Professor Nigel Brandon OBE FREng FRS

Faculty of Engineering

Dean of the Faculty of Engineering
 
 
 
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Contact

 

+44 (0)20 7594 8600n.brandon Website

 
 
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Location

 

2.06Faculty BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Kishimoto:2015:10.1016/j.electacta.2015.12.044,
author = {Kishimoto, M and Lomberg, M and Ruiz-Trejo, E and Brandon, NP},
doi = {10.1016/j.electacta.2015.12.044},
journal = {Electrochimica Acta},
pages = {178--185},
title = {Numerical modeling of nickel-infiltrated gadolinium-doped ceria electrodes reconstructed with focused ion beam tomography},
url = {http://dx.doi.org/10.1016/j.electacta.2015.12.044},
volume = {190},
year = {2015}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - A one-dimensional numerical model of a nickel-infiltrated gadolinium-doped ceria (Ni-GDC) electrode has been developed to investigate the effects of electrode microstructure on performance. Electrode microstructural information was obtained with focused ion beam tomography and microstructural parameters were quantified, such as tortuosity factor, surface area and particle/pore sizes. These have been used to estimate the effective transport coefficients and the electrochemical reaction rate in the electrodes. GDC was considered as a mixed ionic and electronic conductor and hence the electrochemical reaction is assumed to occur on the GDC-pore contact surface, i.e. double-phase boundaries (DPBs). Sensitivity analysis was conducted to investigate the effect of electrode microstructure on both transport properties and electrochemical activity, including the effect of DPB density, GDC tortuosity factor and pore size. The developed model offers a basis to understand the microstructure-performance relationships and to further optimize the electrode microstructures.
AU  - Kishimoto,M
AU  - Lomberg,M
AU  - Ruiz-Trejo,E
AU  - Brandon,NP
DO  - 10.1016/j.electacta.2015.12.044
EP  - 185
PY  - 2015///
SN  - 1873-3859
SP  - 178
TI  - Numerical modeling of nickel-infiltrated gadolinium-doped ceria electrodes reconstructed with focused ion beam tomography
T2  - Electrochimica Acta
UR  - http://dx.doi.org/10.1016/j.electacta.2015.12.044
UR  - http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000371141500021&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
UR  - http://hdl.handle.net/10044/1/31939
VL  - 190
ER  -
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