Optimizing oxygen diffusion in cathode materials for solid oxide fuel cells

A. Chroneos; D. Parfitt; R.V. Vovk; I.L. Goulatis

doi:10.1142/S0217984912501965

Optimizing oxygen diffusion in cathode materials for solid oxide fuel cells

A. Chroneos, D. Parfitt, R.V. Vovk, I.L. Goulatis

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6 Citations (Scopus)

Abstract

Recent investigations have revealed that the RuddlesdenPopper series (A n+1B nO 3n+1) and the layered perovskite LnBaCo 2O 5+δ (Ln = rare-earth cations) are promising as cathodes for intermediate temperature solid oxide fuel cells. For these to be economical the oxygen diffusion must be maximized. Based on atomistic simulations, we propose strategies for optimizing oxygen diffusion in these materials by modifying the oxygen stoichiometry, the composition and cation disorder. The present investigation is focused on La 2CoO 4+δ and GdBaCo 2O 5+δ and the results are discussed in view of recent experimental and theoretical studies. © 2012 World Scientific Publishing Company.

Original language	English
Journal	Modern Physics Letters B
Volume	26
Issue number	30
DOIs	https://doi.org/10.1142/S0217984912501965
Publication status	Published - 2012

Bibliographical note

Cited By :3

Export Date: 10 July 2018

CODEN: MPLBE

Correspondence Address: Chroneos, A.; Department of Materials, Imperial College London, London SW7 2AZ, United Kingdom; email: [email protected]

Keywords

anisotropy
LnBa 1-xSr xCo 2O 5+δ
molecular dynamics
oxygen migration

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title = "Optimizing oxygen diffusion in cathode materials for solid oxide fuel cells",

abstract = "Recent investigations have revealed that the RuddlesdenPopper series (A n+1B nO 3n+1) and the layered perovskite LnBaCo 2O 5+δ (Ln = rare-earth cations) are promising as cathodes for intermediate temperature solid oxide fuel cells. For these to be economical the oxygen diffusion must be maximized. Based on atomistic simulations, we propose strategies for optimizing oxygen diffusion in these materials by modifying the oxygen stoichiometry, the composition and cation disorder. The present investigation is focused on La 2CoO 4+δ and GdBaCo 2O 5+δ and the results are discussed in view of recent experimental and theoretical studies. {\textcopyright} 2012 World Scientific Publishing Company.",

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author = "A. Chroneos and D. Parfitt and R.V. Vovk and I.L. Goulatis",

note = "Cited By :3 Export Date: 10 July 2018 CODEN: MPLBE Correspondence Address: Chroneos, A.; Department of Materials, Imperial College London, London SW7 2AZ, United Kingdom; email: [email protected]",

year = "2012",

doi = "10.1142/S0217984912501965",

language = "English",

volume = "26",

journal = "Modern Physics Letters B",

issn = "0217-9849",

publisher = "World Scientific Publishing",

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TY - JOUR

T1 - Optimizing oxygen diffusion in cathode materials for solid oxide fuel cells

AU - Chroneos, A.

AU - Parfitt, D.

AU - Vovk, R.V.

AU - Goulatis, I.L.

N1 - Cited By :3 Export Date: 10 July 2018 CODEN: MPLBE Correspondence Address: Chroneos, A.; Department of Materials, Imperial College London, London SW7 2AZ, United Kingdom; email: [email protected]

PY - 2012

Y1 - 2012

N2 - Recent investigations have revealed that the RuddlesdenPopper series (A n+1B nO 3n+1) and the layered perovskite LnBaCo 2O 5+δ (Ln = rare-earth cations) are promising as cathodes for intermediate temperature solid oxide fuel cells. For these to be economical the oxygen diffusion must be maximized. Based on atomistic simulations, we propose strategies for optimizing oxygen diffusion in these materials by modifying the oxygen stoichiometry, the composition and cation disorder. The present investigation is focused on La 2CoO 4+δ and GdBaCo 2O 5+δ and the results are discussed in view of recent experimental and theoretical studies. © 2012 World Scientific Publishing Company.

AB - Recent investigations have revealed that the RuddlesdenPopper series (A n+1B nO 3n+1) and the layered perovskite LnBaCo 2O 5+δ (Ln = rare-earth cations) are promising as cathodes for intermediate temperature solid oxide fuel cells. For these to be economical the oxygen diffusion must be maximized. Based on atomistic simulations, we propose strategies for optimizing oxygen diffusion in these materials by modifying the oxygen stoichiometry, the composition and cation disorder. The present investigation is focused on La 2CoO 4+δ and GdBaCo 2O 5+δ and the results are discussed in view of recent experimental and theoretical studies. © 2012 World Scientific Publishing Company.

KW - anisotropy

KW - LnBa 1-xSr xCo 2O 5+δ

KW - molecular dynamics

KW - oxygen migration

U2 - 10.1142/S0217984912501965

DO - 10.1142/S0217984912501965

M3 - Article

SN - 0217-9849

VL - 26

JO - Modern Physics Letters B

JF - Modern Physics Letters B

IS - 30

ER -

Optimizing oxygen diffusion in cathode materials for solid oxide fuel cells

Abstract

Bibliographical note

Keywords

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