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Title: Ca{sub 3-x}La{sub x}Co{sub 4}O{sub 9+{delta}} (x=0, 0.3): New cobaltite materials as cathodes for proton conducting solid oxide fuel cell

Abstract

Misfit-type Ca{sub 3-x}La{sub x}Co{sub 4}O{sub 9+{delta}} (x=0, 0.3) oxides were synthesised to be evaluated as possible cathode materials for proton conducting fuel cells (PCFCs) based on BaCe{sub 0.9}Y{sub 0.1}O{sub 3-{delta}} (BCY10) dense ceramic electrolyte. The electrical conductivity value of Ca{sub 2.7}La{sub 0.3}Co{sub 4}O{sub 9+{delta}} ({sigma}{approx}53 S cm{sup -1} at 600 deg. C) is in the range of usually required value for a cathode application (about 50-100 S cm{sup -1}). In order to test the performance of each compound as cathode material, impedance measurements were carried out on Ca{sub 3-x}La{sub x}Co{sub 4}O{sub 9+{delta}}/BaCe{sub 0.9}Y{sub 0.1}O{sub 3-{delta}}/Ca{sub 3-x}La{sub x}Co{sub 4}O{sub 9+{delta}} symmetrical half cells over the temperature range 400-800 deg. C under wet air. A promising electrocatalytic activity has been observed with both compounds Ca{sub 3}Co{sub 4}O{sub 9+{delta}} and Ca{sub 2.7}La{sub 0.3}Co{sub 4}O{sub 9+{delta}}. Factually, the area specific resistance obtained was about 2.2 {Omega} cm{sup 2} at 600 deg. C. - Graphical abstract: Arrehnius plots of the ASR for Ca{sub 3}Co{sub 4}O{sub 9+{delta}} and Ca{sub 2.7}La{sub 0.3}Co{sub 4}O{sub 9+{delta}}.

Authors:
 [1];  [1];  [1]
  1. CNRS, Universite de Bordeaux, ICMCB, 87, Avenue A. Schweitzer, 33608 Pessac Cedex (France)
Publication Date:
OSTI Identifier:
21372515
Resource Type:
Journal Article
Journal Name:
Journal of Solid State Chemistry
Additional Journal Information:
Journal Volume: 183; Journal Issue: 3; Other Information: DOI: 10.1016/j.jssc.2009.12.014; PII: S0022-4596(09)00584-2; Copyright (c) 2010 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Journal ID: ISSN 0022-4596
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; CALCIUM COMPOUNDS; CERAMICS; COBALT COMPOUNDS; DOPED MATERIALS; ELECTRIC CONDUCTIVITY; ELECTROLYTES; IMPEDANCE; LANTHANUM COMPOUNDS; OXIDES; PERFORMANCE; PROTONS; SOLID OXIDE FUEL CELLS; TEMPERATURE RANGE 0400-1000 K; TEMPERATURE RANGE 1000-4000 K; ALKALINE EARTH METAL COMPOUNDS; BARYONS; CHALCOGENIDES; DIRECT ENERGY CONVERTERS; ELECTRICAL PROPERTIES; ELECTROCHEMICAL CELLS; ELEMENTARY PARTICLES; FERMIONS; FUEL CELLS; HADRONS; HIGH-TEMPERATURE FUEL CELLS; MATERIALS; NUCLEONS; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; RARE EARTH COMPOUNDS; SOLID ELECTROLYTE FUEL CELLS; TEMPERATURE RANGE; TRANSITION ELEMENT COMPOUNDS

Citation Formats

Ben Yahia, Hamdi, Mauvy, Fabrice, and Grenier, Jean Claude. Ca{sub 3-x}La{sub x}Co{sub 4}O{sub 9+{delta}} (x=0, 0.3): New cobaltite materials as cathodes for proton conducting solid oxide fuel cell. United States: N. p., 2010. Web. doi:10.1016/j.jssc.2009.12.014.
Ben Yahia, Hamdi, Mauvy, Fabrice, & Grenier, Jean Claude. Ca{sub 3-x}La{sub x}Co{sub 4}O{sub 9+{delta}} (x=0, 0.3): New cobaltite materials as cathodes for proton conducting solid oxide fuel cell. United States. doi:10.1016/j.jssc.2009.12.014.
Ben Yahia, Hamdi, Mauvy, Fabrice, and Grenier, Jean Claude. Mon . "Ca{sub 3-x}La{sub x}Co{sub 4}O{sub 9+{delta}} (x=0, 0.3): New cobaltite materials as cathodes for proton conducting solid oxide fuel cell". United States. doi:10.1016/j.jssc.2009.12.014.
@article{osti_21372515,
title = {Ca{sub 3-x}La{sub x}Co{sub 4}O{sub 9+{delta}} (x=0, 0.3): New cobaltite materials as cathodes for proton conducting solid oxide fuel cell},
author = {Ben Yahia, Hamdi and Mauvy, Fabrice and Grenier, Jean Claude},
abstractNote = {Misfit-type Ca{sub 3-x}La{sub x}Co{sub 4}O{sub 9+{delta}} (x=0, 0.3) oxides were synthesised to be evaluated as possible cathode materials for proton conducting fuel cells (PCFCs) based on BaCe{sub 0.9}Y{sub 0.1}O{sub 3-{delta}} (BCY10) dense ceramic electrolyte. The electrical conductivity value of Ca{sub 2.7}La{sub 0.3}Co{sub 4}O{sub 9+{delta}} ({sigma}{approx}53 S cm{sup -1} at 600 deg. C) is in the range of usually required value for a cathode application (about 50-100 S cm{sup -1}). In order to test the performance of each compound as cathode material, impedance measurements were carried out on Ca{sub 3-x}La{sub x}Co{sub 4}O{sub 9+{delta}}/BaCe{sub 0.9}Y{sub 0.1}O{sub 3-{delta}}/Ca{sub 3-x}La{sub x}Co{sub 4}O{sub 9+{delta}} symmetrical half cells over the temperature range 400-800 deg. C under wet air. A promising electrocatalytic activity has been observed with both compounds Ca{sub 3}Co{sub 4}O{sub 9+{delta}} and Ca{sub 2.7}La{sub 0.3}Co{sub 4}O{sub 9+{delta}}. Factually, the area specific resistance obtained was about 2.2 {Omega} cm{sup 2} at 600 deg. C. - Graphical abstract: Arrehnius plots of the ASR for Ca{sub 3}Co{sub 4}O{sub 9+{delta}} and Ca{sub 2.7}La{sub 0.3}Co{sub 4}O{sub 9+{delta}}.},
doi = {10.1016/j.jssc.2009.12.014},
journal = {Journal of Solid State Chemistry},
issn = {0022-4596},
number = 3,
volume = 183,
place = {United States},
year = {2010},
month = {3}
}