Phase and strain distributions associated with reactive contaminants inside of a solid oxide fuel cell

Di-Jia Liu; Almer, Jonathan
June 2009
Applied Physics Letters;6/1/2009, Vol. 94 Issue 22, p224106
Academic Journal
A microfocused synchrotron x-ray diffraction method was used to reveal the quantitative distributions of phase fractions, internal strains, and their interdependences at different layer depths inside of a planar solid oxide fuel cell, which was deactivated by chromium contamination through direct contact with the metallic interconnect under typical operating conditions. These observations provide insight into the mechanism of Cr poisoning. The method can serve as a versatile tool for studying the electrochemical devices with thin-layered construction such as batteries and fuel cells under static or in situ conditions.


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