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La2Pr2Ni3O10±δ Ruddlesden-Popper phase as potential intermediate temperature-solid oxide fuel cell cathodes

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Title: La2Pr2Ni3O10±δ Ruddlesden-Popper phase as potential intermediate temperature-solid oxide fuel cell cathodes
Authors: Yatoo, MA
Du, Z
Zhao, H
Aguadero, A
Skinner, SJ
Item Type: Journal Article
Abstract: Ruddlesden-Popper phases are layered oxides composed of nABO 3 perovskite layers sandwiched between two AO rock-salt layers. Herein a new composition of n = 3 Ruddlesden-Popper phases, La 2 Pr 2 Ni 3 O 10±δ , synthesised by the citrate sol-gel method is reported. A preliminary microstructure investigation combined with studies of the electrochemical performance of this new composition, La 2 Pr 2 Ni 3 O 10±δ as a potential cathode material in both symmetrical and single cell configurations is reported. The area specific resistance of the La 2 Pr 2 Ni 3 O 10±δ cathode was found to be 0.34 Ω cm 2 at 800 °C, which is significantly better than previous reports for the La 4 Ni 3 O 10±δ analogue under similar conditions. A modest peak power density of 0.19 W cm −2 at 800 °C was found, whilst electrode adhesion was identified as contributing to the modest performance.
Date of Acceptance: 28-Feb-2018
URI: http://hdl.handle.net/10044/1/59312
DOI: 10.1016/j.ssi.2018.02.043
ISSN: 0167-2738
Publisher: Elsevier
Start Page: 148
End Page: 151
Journal / Book Title: Solid State Ionics
Volume: 320
Keywords: 0204 Condensed Matter Physics
0306 Physical Chemistry (Incl. Structural)
0912 Materials Engineering
Energy
Publication Status: Published
Online Publication Date: 2018-03-08
Appears in Collections:Materials
Faculty of Natural Sciences
Faculty of Engineering



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