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Article: Effects of the gas flow rate on the ionic conductivity of CaZr 0.95In0.05O3-δ ceramics

TitleEffects of the gas flow rate on the ionic conductivity of CaZr 0.95In0.05O3-δ ceramics
Authors
KeywordsAdsorption
Cazr0.95In0.05O3-Δ
Diffusion
Gas Flow Rate
Proton Conductor
Issue Date2009
PublisherSpringer New York LLC. The Journal's web site is located at http://springerlink.metapress.com/openurl.asp?genre=journal&issn=1385-3449
Citation
Journal of Electroceramics, 2009, v. 22 n. 1-3, p. 20-23 How to Cite?
AbstractWith coarse CaCO3, nano ZrO2 and In2O 3 as raw materials, fine CaZr0.95In0.05O 3-δ powders were synthesized at 1000°C by an optimized solid-state method. With the powders, ceramics with relative density as high as 98% were successfully fabricated at the temperature as low as 1400°C. The effects of gas flow rate on the conductivity of the CaZr0.95In 0.05O3-δ ceramics under wet air conditions were first studied. The results showed that with the increase of temperature, the effects became more and more significant. In order to gain insight into the ion transfer mechanism of the electrolyte, the absorption and diffusion processes were analyzed. It was suggested that at lower temperature, the diffusion step was the rate-determining step. However, with the increase of the temperature, the adsorption process became the rate-determining step at lower flow rates. © 2007 Springer Science+Business Media, LLC.
Persistent Identifierhttp://hdl.handle.net/10722/91093
ISSN
2015 Impact Factor: 1.263
2015 SCImago Journal Rankings: 0.577
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorHan, Jen_HK
dc.contributor.authorWen, Zen_HK
dc.contributor.authorZhang, Jen_HK
dc.contributor.authorLin, Ben_HK
dc.contributor.authorWu, Xen_HK
dc.date.accessioned2010-09-17T10:12:55Z-
dc.date.available2010-09-17T10:12:55Z-
dc.date.issued2009en_HK
dc.identifier.citationJournal of Electroceramics, 2009, v. 22 n. 1-3, p. 20-23en_HK
dc.identifier.issn1385-3449en_HK
dc.identifier.urihttp://hdl.handle.net/10722/91093-
dc.description.abstractWith coarse CaCO3, nano ZrO2 and In2O 3 as raw materials, fine CaZr0.95In0.05O 3-δ powders were synthesized at 1000°C by an optimized solid-state method. With the powders, ceramics with relative density as high as 98% were successfully fabricated at the temperature as low as 1400°C. The effects of gas flow rate on the conductivity of the CaZr0.95In 0.05O3-δ ceramics under wet air conditions were first studied. The results showed that with the increase of temperature, the effects became more and more significant. In order to gain insight into the ion transfer mechanism of the electrolyte, the absorption and diffusion processes were analyzed. It was suggested that at lower temperature, the diffusion step was the rate-determining step. However, with the increase of the temperature, the adsorption process became the rate-determining step at lower flow rates. © 2007 Springer Science+Business Media, LLC.en_HK
dc.languageengen_HK
dc.publisherSpringer New York LLC. The Journal's web site is located at http://springerlink.metapress.com/openurl.asp?genre=journal&issn=1385-3449en_HK
dc.relation.ispartofJournal of Electroceramicsen_HK
dc.subjectAdsorptionen_HK
dc.subjectCazr0.95In0.05O3-Δen_HK
dc.subjectDiffusionen_HK
dc.subjectGas Flow Rateen_HK
dc.subjectProton Conductoren_HK
dc.titleEffects of the gas flow rate on the ionic conductivity of CaZr 0.95In0.05O3-δ ceramicsen_HK
dc.typeArticleen_HK
dc.identifier.emailLin, B:blin@hku.hken_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1007/s10832-007-9383-0en_HK
dc.identifier.scopuseid_2-s2.0-60649097400en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-60649097400&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume22en_HK
dc.identifier.issue1-3en_HK
dc.identifier.spage20en_HK
dc.identifier.epage23en_HK
dc.identifier.eissn1573-8663-
dc.identifier.isiWOS:000263498800005-

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