Understanding degradation of solid oxide electrolysis cells through modeling of electrochemical potential profiles

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Understanding degradation of solid oxide electrolysis cells through modeling of electrochemical potential profiles

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作者：C. Chatzichristodoulou^a ; ^{ccha@dtu.dk" class="auth_mail" title="E-mail the corresponding author} ; M. Chen^a ; P.V. Hendriksen^a ; T. Jacobsen^b ; M.B. Mogensen^a
关键词：SOEC ; degradation ; bi-layer electrolyte ; modeling ; electrochemical potential profiles
刊名：Electrochimica Acta
出版年：2016
出版时间：20 January 2016
年：2016
卷：189
期：Complete
页码：265-282
全文大小：3815 K

文摘

•: The maximum a_O₂ $a_{O_{2}}$ is found at the YSZ/CGO10 interface of a bi-layer electrolyte SOEC.
•: Operating cyclically between SOFC and SOEC mode can mitigate degradation.
•: Increasing n- to p-type electrolyte conductivity reduces volume exposed to high a_O₂ $a_{O_{2}}$ .
•: Reversal of a43602eb93fef67efe6847145821dd9e" title="Click to view the MathML source">i_ion $i_{i o n}$ and a_O₂ $a_{O_{2}}$ distribution can occur in heterogeneously degraded cells.

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