Ionic conductivity of dense BaZr(0.5)Ce(0.3)Ln(0.2)O(3-delta) (Ln = Y, Sm, Gd, Dy) electrolytes
2014 (English)In: Journal of Power Sources, ISSN 0378-7753, Vol. 272, 786-793 p.Article in journal (Refereed) Published
BaZr(0.5)Ce(0.3)Ln(0.2)O(3-delta) (BZCLn532, Ln = Y, Sm, Gd, Dy) based electrolytes were successfully synthesized by a cost-effective solid-state reactive sintering (SSRS) method while using 1.0 wt.% NiO as a sintering aid. Dense pellets of BZCLn532 compounds can be prepared at sintering temperatures of 1600 degrees C (BZCY532) and 1400 degrees C (BZCS532, BZCG532 and BZCD532). The conductivities of the dense BZCLn532 ceramics were tested in dry and wet air at temperatures of 700 degrees C-200 degrees C. On the basis of the obtained results, it could be concluded that the BZCY532-based electrolyte show promise for use as oxygen-ion conductors and proton conductors in intermediate temperature solid oxide fuel cells (ITSOFCs).
Place, publisher, year, edition, pages
2014. Vol. 272, 786-793 p.
Barium cerate, Barium zirconate, Solid-state reactive sintering, Proton conductivity
Other Electrical Engineering, Electronic Engineering, Information Engineering
IdentifiersURN: urn:nbn:se:kth:diva-157587DOI: 10.1016/j.jpowsour.2014.09.056ISI: 000344208700097ScopusID: 2-s2.0-84907279875OAI: oai:DiVA.org:kth-157587DiVA: diva2:771622
QC 201412152014-12-152014-12-112015-04-23Bibliographically approved