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Article: Evaluation of simple, easily sintered La0.7Ca0.3Cr0.97 O3-δ perovskite oxide as novel interconnect material for solid oxide fuel cells

TitleEvaluation of simple, easily sintered La0.7Ca0.3Cr0.97 O3-δ perovskite oxide as novel interconnect material for solid oxide fuel cells
Authors
KeywordsElectrical Properties
Interconnect
Sofc
Thermal Expansion
X-Ray Diffraction
Issue Date2009
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/jallcom
Citation
Journal of Alloys and Compounds, 2009, v. 479 n. 1-2, p. 764-768 How to Cite?
AbstractSimple, easily sintered perovskite oxide as a novel interconnect material for solid oxide fuel cells (SOFCs) was evaluated at a SOFC co-firing temperature (1400 °C). Chemical compatibility, sintering character, electrical conductivity and thermal expansion were investigated to characterize the compatibilities of La0.7Ca0.3Cr0.97O3-δ (LCC97) with Y0.16Zr0.84O2-δ (YSZ), NiO, Sm0.2Ce0.8O2-δ (SDC), La0.8Sr0.2MnO3-δ (LSM), and BaZr0.1Ce0.7Y0.2O3-δ (BZCY), respectively. The XRD analysis indicates LCC97 chemically incompatible with BZCY. The mixtures of LCC97/SDC and LCC97/NiO, respectively, exhibit high relative densities of 97.6% and 96.2% after sintering at 1400 °C for 5 h in air. However, the samples of LCC97/YSZ and LCC97/LSM only have poor sintering abilities. The samples of LCC97 mixed with LSM, SDC, NiO and YSZ, respectively, have a decreasing electrical conductivity of 24.0 S cm-1, 12.2 S cm-1, 7.8 S cm-1 and 0.17 S cm-1 at 850 °C in air, which are all much lower than that of the LCC97 sample (62.0 S cm-1). Different mixing slightly increases the TEC value of LCC97. Results indicate that, under SOFC co-firing conditions, the novel interconnect material LCC97 has desired compatibilities with SDC and NiO, while it displays poor compatibilities with YSZ and LSM. © 2009 Elsevier B.V. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/91136
ISSN
2015 Impact Factor: 3.014
2015 SCImago Journal Rankings: 1.006
ISI Accession Number ID
Funding AgencyGrant Number
National Natural Science Foundation of China50572099
50730002
National High-tech R&D Program of China2007AA05Z157
Science Research Key Plan of Anhui Province Education BureauKJ2008A150
Funding Information:

The authors gratefully acknowledge the support of this research by National Natural Science Foundation of China on contract No. 50572099, No. 50730002, and the financial support from the National High-tech R&D Program of China (Grant No.: 2007AA05Z157). The research is also supported by the Science Research Key Plan of Anhui Province Education Bureau (No. KJ2008A150).

References

 

DC FieldValueLanguage
dc.contributor.authorWang, Sen_HK
dc.contributor.authorLin, Ben_HK
dc.contributor.authorChen, Yen_HK
dc.contributor.authorLiu, Xen_HK
dc.contributor.authorMeng, Gen_HK
dc.date.accessioned2010-09-17T10:13:34Z-
dc.date.available2010-09-17T10:13:34Z-
dc.date.issued2009en_HK
dc.identifier.citationJournal of Alloys and Compounds, 2009, v. 479 n. 1-2, p. 764-768en_HK
dc.identifier.issn0925-8388en_HK
dc.identifier.urihttp://hdl.handle.net/10722/91136-
dc.description.abstractSimple, easily sintered perovskite oxide as a novel interconnect material for solid oxide fuel cells (SOFCs) was evaluated at a SOFC co-firing temperature (1400 °C). Chemical compatibility, sintering character, electrical conductivity and thermal expansion were investigated to characterize the compatibilities of La0.7Ca0.3Cr0.97O3-δ (LCC97) with Y0.16Zr0.84O2-δ (YSZ), NiO, Sm0.2Ce0.8O2-δ (SDC), La0.8Sr0.2MnO3-δ (LSM), and BaZr0.1Ce0.7Y0.2O3-δ (BZCY), respectively. The XRD analysis indicates LCC97 chemically incompatible with BZCY. The mixtures of LCC97/SDC and LCC97/NiO, respectively, exhibit high relative densities of 97.6% and 96.2% after sintering at 1400 °C for 5 h in air. However, the samples of LCC97/YSZ and LCC97/LSM only have poor sintering abilities. The samples of LCC97 mixed with LSM, SDC, NiO and YSZ, respectively, have a decreasing electrical conductivity of 24.0 S cm-1, 12.2 S cm-1, 7.8 S cm-1 and 0.17 S cm-1 at 850 °C in air, which are all much lower than that of the LCC97 sample (62.0 S cm-1). Different mixing slightly increases the TEC value of LCC97. Results indicate that, under SOFC co-firing conditions, the novel interconnect material LCC97 has desired compatibilities with SDC and NiO, while it displays poor compatibilities with YSZ and LSM. © 2009 Elsevier B.V. All rights reserved.en_HK
dc.languageengen_HK
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/jallcomen_HK
dc.relation.ispartofJournal of Alloys and Compoundsen_HK
dc.subjectElectrical Propertiesen_HK
dc.subjectInterconnecten_HK
dc.subjectSofcen_HK
dc.subjectThermal Expansionen_HK
dc.subjectX-Ray Diffractionen_HK
dc.titleEvaluation of simple, easily sintered La0.7Ca0.3Cr0.97 O3-δ perovskite oxide as novel interconnect material for solid oxide fuel cellsen_HK
dc.typeArticleen_HK
dc.identifier.emailLin, B:blin@hku.hken_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.jallcom.2009.01.039en_HK
dc.identifier.scopuseid_2-s2.0-67349174228en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-67349174228&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume479en_HK
dc.identifier.issue1-2en_HK
dc.identifier.spage764en_HK
dc.identifier.epage768en_HK
dc.identifier.isiWOS:000267063300164-

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