Direct application of cobaltite-based perovskite cathodes on the yttria-stabilized zirconia electrolyte for intermediate temperature solid oxide fuel cells - Details

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Abstract：

In　this　communication,　cobaltite-based　perovskite　(CBP)　cathodes　are　directly　applied　on　the　yttria-stabilized　zirconia　(YSZ)　electrolyte　via　an　in　situ　assembly　process　without　the　addition　of　a　doped　ceria　interlayer　and　pre-sintering　at　high　temperatures.　The　results　demonstrate　for　the　first　time　that　a　CBP　electrode/YSZ　electrolyte　interface　can　be　formed　in　situ　under　cathodic　polarization　at　a　solid　oxide　fuel　cell　(SOFC)　operating　temperature　of　750　°C.　Nevertheless,　the　performance　of　cells　with　Sr-containing　CBP　cathodes　deteriorates　due　to　the　surface　segregation　of　Sr　species　and　formation　of　a　Sr-rich　reaction　layer　at　the　interface.　However,　the　stability　and　power　density　of　cells　with　in　situ　assembled　CBP　cathodes　can　be　further　enhanced　by　B-site　doping　or　by　using　a　Sr-free　CBP.　The　direct　application　of　CBPs　on　the　YSZ　electrolyte　revolutionizes　the　design　of　intermediate　temperature　SOFCs.　©　The　Royal　Society　of　Chemistry.

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[ 1 ] [Chen, K.]College of Materials Science and Engineering, Fuzhou University, Fuzhou, Fujian 350108, China
[ 2 ] [Chen, K.]Fuels and Energy Technology Institute, Department of Chemical Engineering, Curtin University, Perth, WA 6102, Australia
[ 3 ] [Li, N.]Fuels and Energy Technology Institute, Department of Chemical Engineering, Curtin University, Perth, WA 6102, Australia
[ 4 ] [Li, N.]College of Science, Heilongjiang University of Science and Technology, Harbin, 150022, China
[ 5 ] [Ai, N.]Fuels and Energy Technology Institute, Department of Chemical Engineering, Curtin University, Perth, WA 6102, Australia
[ 6 ] [Li, M.]State Key Laboratory for Coal Combustion, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
[ 7 ] [Cheng, Y.]Fuels and Energy Technology Institute, Department of Chemical Engineering, Curtin University, Perth, WA 6102, Australia
[ 8 ] [Rickard, W.D.A.]John De Laeter Centre, Department of Physics and Astronomy, Curtin University, Perth, WA 6102, Australia
[ 9 ] [Li, J.]State Key Laboratory for Coal Combustion, School of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
[ 10 ] [Jiang, S.P.]Fuels and Energy Technology Institute, Department of Chemical Engineering, Curtin University, Perth, WA 6102, Australia

Reprint 's Address：

[Jiang, S.P.]Fuels and Energy Technology Institute, Department of Chemical Engineering, Curtin UniversityAustralia

Email：

s.jiang@curtin.edu.au

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Journal of Materials Chemistry A

ISSN： 2050-7488

Year： 2016

Issue： 45

Volume： 4

Page： 17678-17685

8 . 8 6 7

JCR@2016

1 0 . 8 0 0

JCR@2023

ESI HC Threshold：324

JCR Journal Grade：1

CAS Journal Grade：1

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SCOPUS Cited Count： 81

ESI Highly Cited Papers on the List： 0 Unfold All

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30 Days PV： 2

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