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An improved synthesis method of ceria-carbonate based composite electrolytes for low-temperature SOFC fuel cells
KTH, School of Industrial Engineering and Management (ITM), Energy Technology, Heat and Power Technology.
2013 (English)In: International journal of hydrogen energy, ISSN 0360-3199, Vol. 38, no 36, 16532-16538 p.Article in journal (Refereed) Published
Abstract [en]

SDC-carbonate composite electrolytes for low-temperature Solid Oxide Fuel Cells (LTSOFC) have been synthesized by an improved freeze drying method based on the formation of lanthanide citrate complex solution/gel. This method can not only maintain small particle sizes in composite, but also control the carbonate composition precisely. To optimize the electrochemical performance of the composite electrolytes, SDC-carbonate samples with different carbonate contents were prepared and investigated. SEM, EDS, MPD and XRD analyses were applied to characterize the morphology and carbonate content and EIS was used to determine the ionic conductivity of the electrolyte. The highest conductivity achieved was 400 mS/cm at 600 degrees C.

Place, publisher, year, edition, pages
2013. Vol. 38, no 36, 16532-16538 p.
Keyword [en]
Electrolyte, Fuel cell, LT-SOFC, Freeze drying, Complex ions, Citric acid
National Category
Energy Engineering
URN: urn:nbn:se:kth:diva-139273DOI: 10.1016/j.ijhydene.2013.05.136ISI: 000327904500074ScopusID: 2-s2.0-84887999076OAI: diva2:685208

QC 20140109

Available from: 2014-01-09 Created: 2014-01-08 Last updated: 2014-01-15Bibliographically approved

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Zhu, Bin
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