Prediction of infiltrated solid oxide fuel cell cathode polarization resistance

Autor:	Megna Shah, Jason D. Nicholas, Scott A. Barnett
Rok vydání:	2009
Předmět:	Materials science Analytical chemistry Ionic bonding Limiting Cathode law.invention lcsh:Chemistry lcsh:Industrial electrochemistry lcsh:QD1-999 law Electrochemistry Solid oxide fuel cell Composite cathode Polarization (electrochemistry) lcsh:TP250-261 Cathode polarization
Zdroj:	Electrochemistry Communications, Vol 11, Iss 1, Pp 2-5 (2009)
ISSN:	1388-2481
DOI:	10.1016/j.elecom.2008.10.006
Popis:	The polarization resistance of La0.6Sr0.4Co0.2Fe0.8O3−δ (LSCF)-infiltrated Ce0.9Gd0.1O1.95 cathodes was quantitatively explained using a simple model where the resistance scaled directly with the LSCF surface area, as estimated from cross-sectional fracture surfaces. The Tanner, Fung, Virkar composite cathode model was also applied and showed that ionic transport in these 25-μm-thick cathodes was not a significant limitation at 600 °C, but became more limiting at 700 °C. Calculated polarization resistances were within ∼40% (without fitting parameters) of reported values. Keywords: SOFC, Cathode, Infiltration, Polarization resistance, Model
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3d194c9a47eea23ace400bc76feaa541 https://doi.org/10.1016/j.elecom.2008.10.006 Zobrazit plný text záznamu Full Text from ScienceDirect